' ***********************************************************************
' Author           : Elektro
' Last Modified On : 05-13-2014
' ***********************************************************************
' <copyright file="MouseHook.vb" company="Elektro Studios">
'     Copyright (c) Elektro Studios. All rights reserved.
' </copyright>
' ***********************************************************************
 
#Region " Instructions "
 
' Go to page:
' Project > Properties > Debug
'
' And uncheck the option:
' Enable the Visual Studio Hosting Process
 
#End Region
 
#Region " Usage Examples "
 
' ''' <summary>
' ''' A low level mouse hook that captures mouse events.
' ''' </summary>
'Private WithEvents MouseEvents As MouseHook = Nothing
 
' ''' <summary>
' ''' Handles the 'MouseLeftDown' event of the Mouse Hook.
' ''' </summary>
' ''' <param name="MouseLocation">Indicates the mouse [X,Y] coordinates.</param>
'Private Sub MouseEvents_MouseLeftDown(ByVal MouseLocation As Point) Handles MouseEvents.MouseLeftDown
'
'    Debug.WriteLine(String.Format("Mouse Left Down At: x={0}, y={1}", CStr(MouseLocation.X), CStr(MouseLocation.Y)))
'
'End Sub
 
' ''' <summary>
' ''' Handles the 'MouseLeftUp' event of the Mouse Hook.
' ''' </summary>
' ''' <param name="MouseLocation">Indicates the mouse [X,Y] coordinates.</param>
'Private Sub MouseEvents_MouseLeftUp(ByVal MouseLocation As Point) Handles MouseEvents.MouseLeftUp
'
'    Debug.WriteLine(String.Format("Mouse Left Up At: x={0}, y={1}", CStr(MouseLocation.X), CStr(MouseLocation.Y)))
'
'End Sub
 
' ''' <summary>
' ''' Handles the 'MouseMove' event of the Mouse Hook.
' ''' </summary>
' ''' <param name="MouseLocation">Indicates the mouse [X,Y] coordinates.</param>
'Private Sub MouseEvents_MouseMove(ByVal MouseLocation As Point) Handles MouseEvents.MouseMove
'
'    Debug.WriteLine(String.Format("Mouse Moved To: x={0}, y={1}", CStr(MouseLocation.X), CStr(MouseLocation.Y)))
'
'End Sub
 
' ''' <summary>
' ''' Handles the 'Click' event of the 'ButtonStartHook' control.
' ''' </summary>
'Private Sub ButtonStartHook() Handles ButtonStartHook.Click
 
'    ' Start the Mouse Hook.
'    MouseEvents = New MouseHook
 
'End Sub
 
' ''' <summary>
' ''' Handles the 'Click' event of the 'ButtonStopHook' control.
' ''' </summary>
'Private Sub ButtonStopHook() Handles ButtonStopHook.Click
 
'    ' Stop the Mouse Hook.
'    MouseEvents = Nothing
 
'End Sub
 
#End Region
 
#Region " Imports "
 
Imports System.ComponentModel
Imports System.Reflection
Imports System.Runtime.InteropServices
 
#End Region
 
#Region " MouseHook "
 
''' <summary>
''' A low level mouse hook class that captures mouse events.
''' </summary>
Public Class MouseHook
 
#Region " WinAPI "
 
#Region " Methods "
 
    ''' <summary>
    ''' Passes the hook information to the next hook procedure in the current hook chain. 
    ''' A hook procedure can call this function either before or after processing the hook information.
    ''' For more info see here:
    ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644974%28v=vs.85%29.aspx
    ''' </summary>
    ''' <param name="idHook">
    ''' This parameter is ignored.
    ''' </param>
    ''' <param name="nCode">
    ''' The hook code passed to the current hook procedure. 
    ''' The next hook procedure uses this code to determine how to process the hook information.
    ''' </param>
    ''' <param name="wParam">
    ''' The wParam value passed to the current hook procedure. 
    ''' The meaning of this parameter depends on the type of hook associated with the current hook chain.
    ''' </param>
    ''' <param name="lParam">
    ''' The lParam value passed to the current hook procedure. 
    ''' The meaning of this parameter depends on the type of hook associated with the current hook chain.
    ''' </param>
    ''' <returns>
    ''' This value is returned by the next hook procedure in the chain. 
    ''' The current hook procedure must also return this value. 
    ''' The meaning of the return value depends on the hook type. 
    ''' For more information, see the descriptions of the individual hook procedures.
    ''' </returns>
    <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
    Private Shared Function CallNextHookEx(
           ByVal idHook As Integer,
           ByVal nCode As Integer,
           ByVal wParam As Integer,
           ByVal lParam As MSLLHOOKSTRUCT
    ) As Integer
    End Function
 
    ''' <summary>
    ''' Installs an application-defined hook procedure into a hook chain. 
    ''' You would install a hook procedure to monitor the system for certain types of events. 
    ''' These events are associated either with a specific thread 
    ''' or with all threads in the same desktop as the calling thread.
    ''' For more info see here:
    ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644990%28v=vs.85%29.aspx
    ''' </summary>
    ''' <param name="idHook">
    ''' The type of hook procedure to be installed.
    ''' </param>
    ''' <param name="lpfn">
    ''' A pointer to the hook procedure. 
    ''' If the dwThreadId parameter is zero or specifies the identifier of a thread created by a different process, 
    ''' the lpfn parameter must point to a hook procedure in a DLL. 
    ''' Otherwise, lpfn can point to a hook procedure in the code associated with the current process.
    ''' </param>
    ''' <param name="hInstance">
    ''' A handle to the DLL containing the hook procedure pointed to by the lpfn parameter. 
    ''' The hMod parameter must be set to NULL if the dwThreadId parameter specifies a thread created by 
    ''' the current process and if the hook procedure is within the code associated with the current process.
    ''' </param>
    ''' <param name="threadId">
    ''' The identifier of the thread with which the hook procedure is to be associated. 
    ''' For desktop apps, if this parameter is zero, the hook procedure is associated 
    ''' with all existing threads running in the same desktop as the calling thread. 
    ''' </param>
    ''' <returns>
    ''' If the function succeeds, the return value is the handle to the hook procedure.
    ''' If the function fails, the return value is NULL.
    ''' </returns>
    <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
    Private Shared Function SetWindowsHookEx(
           ByVal idHook As HookType,
           ByVal lpfn As MouseProcDelegate,
           ByVal hInstance As IntPtr,
           ByVal threadId As Integer
    ) As Integer
    End Function
 
    ''' <summary>
    ''' Removes a hook procedure installed in a hook chain by the 'SetWindowsHookEx' function.
    ''' For more info see here:
    ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644993%28v=vs.85%29.aspx
    ''' </summary>
    ''' <param name="idHook">
    ''' A handle to the hook to be removed. 
    ''' This parameter is a hook handle obtained by a previous call to SetWindowsHookEx.
    ''' </param>
    ''' <returns>
    ''' If the function succeeds, the return value is nonzero.
    ''' If the function fails, the return value is zero.
    ''' </returns>
    <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
    Private Shared Function UnhookWindowsHookEx(
           ByVal idHook As Integer
    ) As Boolean
    End Function
 
#End Region
 
#Region " Enums "
 
    ''' <summary>
    ''' Indicates a type of Hook procedure to be installed.
    ''' </summary>
    <Description("Enum used in 'idHook' parameter of 'SetWindowsHookEx' function")>
    Private Enum HookType As Integer
 
        ' **************************************
        ' This enumeration is partially defined.
        ' **************************************
 
        ''' <summary>
        ''' Installs a hook procedure that monitors low-level mouse input events. 
        ''' For more information, see the LowLevelMouseProc hook procedure.
        ''' </summary>
        WH_MOUSE_LL = 14
 
    End Enum
 
#End Region
 
#Region " Structures "
 
    ''' <summary>
    ''' Contains information about a low-level mouse input event.
    ''' </summary>
    <Description("Structure used in 'lParam' parameter of 'CallNextHookEx' function")>
    Private Structure MSLLHOOKSTRUCT
 
        ''' <summary>
        ''' The ptThe x- and y-coordinates of the cursor, in screen coordinates.
        ''' </summary>
        Public pt As Point
 
        ''' <summary>
        ''' If the message is 'WM_MOUSEWHEEL', the high-order word of this member is the wheel delta. 
        ''' The low-order word is reserved. 
        ''' A positive value indicates that the wheel was rotated forward, away from the user; 
        ''' a negative value indicates that the wheel was rotated backward, toward the user. 
        ''' One wheel click is defined as 'WHEEL_DELTA', which is '120'.
        ''' </summary>
        Public mouseData As Integer
 
        ''' <summary>
        ''' The event-injected flag.
        ''' </summary>
        Public flags As Integer
 
        ''' <summary>
        ''' The time stamp for this message. 
        ''' </summary>
        Public time As Integer
 
        ''' <summary>
        ''' Additional information associated with the message.
        ''' </summary>
        Public dwExtraInfo As Integer
 
    End Structure
 
#End Region
 
#End Region
 
#Region " Variables "
 
    ''' <summary>
    ''' 
    ''' </summary>
    Private MouseHook As Integer
 
#End Region
 
#Region " Delegates "
 
    ''' <summary>
    ''' Delegate MouseProcDelegate
    ''' </summary>
    ''' <returns>System.Int32.</returns>
    Private Delegate Function MouseProcDelegate(
            ByVal nCode As Integer,
            ByVal wParam As Integer,
            ByRef lParam As MSLLHOOKSTRUCT
    ) As Integer
 
    ''' <summary>
    ''' </summary>
    Private MouseHookDelegate As MouseProcDelegate
 
#End Region
 
#Region " Enums "
 
    ''' <summary>
    ''' Indicates a Windows Message related to a mouse events.
    ''' For more info see here:
    ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ff468877%28v=vs.85%29.aspx
    ''' </summary>
    Private Enum MouseWindowsMessages As Integer
 
        ''' <summary>
        ''' Posted to a window when the cursor moves. 
        ''' If the mouse is not captured, the message is posted to the window that contains the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MOUSEMOVE = &H200
 
        ''' <summary>
        ''' Posted when the user presses the left mouse button while the cursor is in the client area of a window.
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor.
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONDOWN = &H201
 
        ''' <summary>
        ''' Posted when the user releases the left mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONUP = &H202
 
        ''' <summary>
        ''' Posted when the user double-clicks the left mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONDBLCLK = &H203
 
        ''' <summary>
        ''' Posted when the user presses the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONDOWN = &H204
 
        ''' <summary>
        ''' Posted when the user releases the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONUP = &H205
 
        ''' <summary>
        ''' Posted when the user double-clicks the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONDBLCLK = &H206
 
        ''' <summary>
        ''' Posted when the user presses the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONDOWN = &H207
 
        ''' <summary>
        ''' Posted when the user releases the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONUP = &H208
 
        ''' <summary>
        ''' Posted when the user double-clicks the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONDBLCLK = &H209
 
        ''' <summary>
        ''' Sent to the active window when the mouse's horizontal scroll wheel is tilted or rotated. 
        ''' The DefWindowProc function propagates the message to the window's parent. 
        ''' There should be no internal forwarding of the message, 
        ''' since DefWindowProc propagates it up the parent chain until it finds a window that processes it.
        ''' </summary>
        WM_MOUSEWHEEL = &H20A
 
    End Enum
 
    ''' <summary>
    ''' Indicates the whell direction of the mouse.
    ''' </summary>
    Public Enum WheelDirection
 
        ''' <summary>
        ''' The wheel is moved up.
        ''' </summary>
        WheelUp
 
        ''' <summary>
        ''' The wheel is moved down.
        ''' </summary>
        WheelDown
 
    End Enum
 
#End Region
 
#Region " Events "
 
    ''' <summary>
    ''' Occurs when the mouse moves.
    ''' </summary>
    Public Event MouseMove(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is pressed.
    ''' </summary>
    Public Event MouseLeftDown(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is released.
    ''' </summary>
    Public Event MouseLeftUp(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is double-clicked.
    ''' </summary>
    Public Event MouseLeftDoubleClick(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is pressed.
    ''' </summary>
    Public Event MouseRightDown(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is released.
    ''' </summary>
    Public Event MouseRightUp(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is double-clicked.
    ''' </summary>
    Public Event MouseRightDoubleClick(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is pressed.
    ''' </summary>
    Public Event MouseMiddleDown(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is released.
    ''' </summary>
    Public Event MouseMiddleUp(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is double-clicked.
    ''' </summary>
    Public Event MouseMiddleDoubleClick(ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when [mouse move].
    ''' </summary>
    Public Event MouseWheel(ByVal MouseLocation As Point,
                            ByVal WheelDirection As WheelDirection)
 
#End Region
 
#Region " Constructors "
 
    ''' <summary>
    ''' Initializes a new instance of this class.
    ''' </summary>
    Public Sub New()
 
        MouseHookDelegate = New MouseProcDelegate(AddressOf MouseProc)
 
        MouseHook = SetWindowsHookEx(HookType.WH_MOUSE_LL,
                                     MouseHookDelegate,
                                     Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly.GetModules()(0)).ToInt32, 0)
    End Sub
 
#End Region
 
#Region " Protected Methods "
 
    ''' <summary>
    ''' Allows an object to try to free resources 
    ''' and perform other cleanup operations before it is reclaimed by garbage collection.
    ''' </summary>
    Protected Overrides Sub Finalize()
 
        UnhookWindowsHookEx(MouseHook)
        MyBase.Finalize()
 
    End Sub
 
#End Region
 
#Region " Private Methods "
 
    ''' <summary>
    ''' Processes the mouse windows messages and raises it's corresponding events.
    ''' </summary>
    ''' <returns>System.Int32.</returns>
    Private Function MouseProc(ByVal nCode As Integer,
                               ByVal wParam As Integer,
                               ByRef lParam As MSLLHOOKSTRUCT
    ) As Integer
 
        If nCode = 0 Then
 
            Select Case wParam
 
                Case MouseWindowsMessages.WM_MOUSEMOVE
                    RaiseEvent MouseMove(lParam.pt)
 
                Case MouseWindowsMessages.WM_LBUTTONDOWN
                    RaiseEvent MouseLeftDown(lParam.pt)
 
                Case MouseWindowsMessages.WM_LBUTTONUP
                    RaiseEvent MouseLeftUp(lParam.pt)
 
                Case MouseWindowsMessages.WM_LBUTTONDBLCLK
                    RaiseEvent MouseLeftDoubleClick(lParam.pt)
 
                Case MouseWindowsMessages.WM_RBUTTONDOWN
                    RaiseEvent MouseRightDown(lParam.pt)
 
                Case MouseWindowsMessages.WM_RBUTTONUP
                    RaiseEvent MouseRightUp(lParam.pt)
 
                Case MouseWindowsMessages.WM_RBUTTONDBLCLK
                    RaiseEvent MouseRightDoubleClick(lParam.pt)
 
                Case MouseWindowsMessages.WM_MBUTTONDOWN
                    RaiseEvent MouseMiddleDown(lParam.pt)
 
                Case MouseWindowsMessages.WM_MBUTTONUP
                    RaiseEvent MouseMiddleUp(lParam.pt)
 
                Case MouseWindowsMessages.WM_MBUTTONDBLCLK
                    RaiseEvent MouseMiddleDoubleClick(lParam.pt)
 
                Case MouseWindowsMessages.WM_MOUSEWHEEL
                    Dim wDirection As WheelDirection
                    If lParam.mouseData < 0 Then
                        wDirection = WheelDirection.WheelDown
                    Else
                        wDirection = WheelDirection.WheelUp
                    End If
                    RaiseEvent MouseWheel(lParam.pt, wDirection)
 
            End Select
 
        End If
 
        Return CallNextHookEx(MouseHook, nCode, wParam, lParam)
 
    End Function
 
#End Region
 
End Class
 
#End Region

' ***********************************************************************
' Author           : Elektro
' Last Modified On : 09-25-2014
' ***********************************************************************
' <copyright file="MouseHook.vb" company="Elektro Studios">
'     Copyright (c) Elektro Studios. All rights reserved.
' </copyright>
' ***********************************************************************
 
#Region " Instructions "
 
' Go to page:
' Project > Properties > Debug
'
' Then uncheck the option:
' "Enable the Visual Studio Hosting Process"
 
#End Region
 
#Region " Imports "
 
Imports System.ComponentModel
Imports System.Reflection
Imports System.Runtime.InteropServices
 
#End Region
 
#Region " MouseHook "
 
''' <summary>
''' A low level mouse hook class that captures mouse events.
''' </summary>
Friend NotInheritable Class MouseHook : Implements IDisposable
 
#Region " P/Invoke "
 
    ''' <summary>
    ''' Platform Invocation methods (P/Invoke), access unmanaged code.
    ''' This class does not suppress stack walks for unmanaged code permission.
    ''' <see cref="System.Security.SuppressUnmanagedCodeSecurityAttribute"/>  must not be applied to this class.
    ''' This class is for methods that can be used anywhere because a stack walk will be performed.
    ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/ms182161.aspx
    ''' </summary>
    Protected NotInheritable Class NativeMethods
 
#Region " Methods "
 
        ''' <summary>
        ''' Passes the hook information to the next hook procedure in the current hook chain. 
        ''' A hook procedure can call this function either before or after processing the hook information.
        ''' For more info see here:
        ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644974%28v=vs.85%29.aspx
        ''' </summary>
        ''' <param name="idHook">
        ''' This parameter is ignored.
        ''' </param>
        ''' <param name="nCode">
        ''' The hook code passed to the current hook procedure. 
        ''' The next hook procedure uses this code to determine how to process the hook information.
        ''' </param>
        ''' <param name="wParam">
        ''' The wParam value passed to the current hook procedure. 
        ''' The meaning of this parameter depends on the type of hook associated with the current hook chain.
        ''' </param>
        ''' <param name="lParam">
        ''' The lParam value passed to the current hook procedure. 
        ''' The meaning of this parameter depends on the type of hook associated with the current hook chain.
        ''' </param>
        ''' <returns>
        ''' This value is returned by the next hook procedure in the chain. 
        ''' The current hook procedure must also return this value. 
        ''' The meaning of the return value depends on the hook type. 
        ''' For more information, see the descriptions of the individual hook procedures.
        ''' </returns>
        <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
        Friend Shared Function CallNextHookEx(
               ByVal idHook As IntPtr,
               ByVal nCode As Integer,
               ByVal wParam As IntPtr,
               ByVal lParam As IntPtr
        ) As IntPtr
        End Function
 
        ''' <summary>
        ''' Installs an application-defined hook procedure into a hook chain. 
        ''' You would install a hook procedure to monitor the system for certain types of events. 
        ''' These events are associated either with a specific thread 
        ''' or with all threads in the same desktop as the calling thread.
        ''' For more info see here:
        ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644990%28v=vs.85%29.aspx
        ''' </summary>
        ''' <param name="idHook">
        ''' The type of hook procedure to be installed.
        ''' </param>
        ''' <param name="lpfn">
        ''' A pointer to the hook procedure. 
        ''' If the dwThreadId parameter is zero or specifies the identifier of a thread created by a different process, 
        ''' the lpfn parameter must point to a hook procedure in a DLL. 
        ''' Otherwise, lpfn can point to a hook procedure in the code associated with the current process.
        ''' </param>
        ''' <param name="hInstance">
        ''' A handle to the DLL containing the hook procedure pointed to by the lpfn parameter. 
        ''' The hMod parameter must be set to NULL if the dwThreadId parameter specifies a thread created by 
        ''' the current process and if the hook procedure is within the code associated with the current process.
        ''' </param>
        ''' <param name="threadId">
        ''' The identifier of the thread with which the hook procedure is to be associated. 
        ''' For desktop apps, if this parameter is zero, the hook procedure is associated 
        ''' with all existing threads running in the same desktop as the calling thread. 
        ''' </param>
        ''' <returns>
        ''' If the function succeeds, the return value is the handle to the hook procedure.
        ''' If the function fails, the return value is NULL.
        ''' </returns>
        <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
        Friend Shared Function SetWindowsHookEx(
               ByVal idHook As HookType,
               ByVal lpfn As LowLevelMouseProcDelegate,
               ByVal hInstance As IntPtr,
               ByVal threadId As UInteger
        ) As IntPtr
        End Function
 
        ''' <summary>
        ''' Removes a hook procedure installed in a hook chain by the 'SetWindowsHookEx' function.
        ''' For more info see here:
        ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644993%28v=vs.85%29.aspx
        ''' </summary>
        ''' <param name="idHook">
        ''' A handle to the hook to be removed. 
        ''' This parameter is a hook handle obtained by a previous call to SetWindowsHookEx.
        ''' </param>
        ''' <returns>
        ''' If the function succeeds, the return value is nonzero.
        ''' If the function fails, the return value is zero.
        ''' </returns>
        <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
        Friend Shared Function UnhookWindowsHookEx(
               ByVal idHook As IntPtr
        ) As Boolean
        End Function
 
        ''' <summary>
        ''' Retrieves the current double-click time for the mouse. 
        ''' A double-click is a series of two clicks of the mouse button, 
        ''' the second occurring within a specified time after the first. 
        ''' The double-click time is the maximum number of milliseconds that may occur 
        ''' between the first and second click of a double-click. 
        ''' The maximum double-click time is 5000 milliseconds.
        ''' </summary>
        ''' <returns>
        ''' The return value specifies the current double-click time, in milliseconds. 
        ''' The maximum return value is 5000 milliseconds.
        ''' </returns>
        <DllImport("user32.dll", CharSet:=CharSet.Auto)>
        Friend Shared Function GetDoubleClickTime() As Integer
        End Function
 
#End Region
 
#Region " Enumerations "
 
        ''' <summary>
        ''' Indicates a type of Hook procedure to be installed.
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644990%28v=vs.85%29.aspx
        ''' </summary>
        <Description("Enum used in 'idHook' parameter of 'SetWindowsHookEx' function")>
        Friend Enum HookType As Integer
 
            ' **************************************
            ' This enumeration is partially defined.
            ' **************************************
 
            ''' <summary>
            ''' Installs a hook procedure that monitors low-level mouse input events. 
            ''' For more information, see the LowLevelMouseProc hook procedure.
            ''' </summary>
            WH_MOUSE_LL = 14I
 
        End Enum
 
#End Region
 
#Region " Structures "
 
        ''' <summary>
        ''' Contains information about a low-level mouse input event.
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644970%28v=vs.85%29.aspx
        ''' </summary>
        <Description("Structure used in 'lParam' parameter of 'CallNextHookEx' function")>
        Friend Structure MSLLHOOKSTRUCT
 
            ''' <summary>
            ''' The ptThe x- and y-coordinates of the cursor, in screen coordinates.
            ''' </summary>
            Friend pt As Point
 
            ''' <summary>
            ''' If the message is 'WM_MOUSEWHEEL', the high-order word of this member is the wheel delta. 
            ''' The low-order word is reserved. 
            ''' A positive value indicates that the wheel was rotated forward, away from the user; 
            ''' a negative value indicates that the wheel was rotated backward, toward the user. 
            ''' One wheel click is defined as 'WHEEL_DELTA', which is '120'.
            ''' </summary>
            Friend mouseData As Integer
 
            ''' <summary>
            ''' The event-injected flag.
            ''' </summary>
            Friend flags As UInteger
 
            ''' <summary>
            ''' The time stamp for this message. 
            ''' </summary>
            Friend time As UInteger
 
            ''' <summary>
            ''' Additional information associated with the message.
            ''' </summary>
            Friend dwExtraInfo As IntPtr
 
        End Structure
 
#End Region
 
#Region " Delegates "
 
        ''' <summary>
        ''' Delegate LowLevelMouseProc
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644986%28v=vs.85%29.aspx
        ''' </summary>
        ''' <returns>
        ''' If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
        ''' If nCode is greater than or equal to zero, and the hook procedure did not process the message, 
        ''' it is highly recommended that you call CallNextHookEx and return the value it returns; 
        ''' otherwise, other applications that have installed WH_MOUSE_LL hooks will not receive hook notifications 
        ''' and may behave incorrectly as a result.
        ''' If the hook procedure processed the message, 
        ''' it may return a nonzero value to prevent the system from passing the message to the rest of the hook chain or the target window procedure. 
        ''' </returns>
        Friend Delegate Function LowLevelMouseProcDelegate(
                ByVal nCode As IntPtr,
                ByVal wParam As IntPtr,
                ByRef lParam As NativeMethods.MSLLHOOKSTRUCT
        ) As IntPtr
 
#End Region
 
#Region " Hidden Methods "
 
        ''' <summary>
        ''' Determines whether the specified System.Object instances are considered equal.
        ''' </summary>
        <EditorBrowsable(EditorBrowsableState.Never)>
        Public Shadows Sub Equals()
        End Sub
 
        ''' <summary>
        ''' Determines whether the specified System.Object instances are the same instance.
        ''' </summary>
        <EditorBrowsable(EditorBrowsableState.Never)>
        Private Shadows Sub ReferenceEquals()
        End Sub
 
#End Region
 
    End Class
 
#End Region
 
#Region " Objects "
 
    ''' <summary>
    ''' Handle to the hook procedure.
    ''' </summary>
    Private MouseHook As IntPtr
 
    ''' <summary>
    ''' The mouse hook delegate.
    ''' </summary>
    Private MouseHookDelegate As NativeMethods.LowLevelMouseProcDelegate
 
#End Region
 
#Region " Properties "
 
    ''' <summary>
    ''' ** ONLY FOR TESTING PURPOSES **
    ''' Gets or sets a value indicating whether to suppress the last MouseUp event of 
    ''' the specified clicked button when a double-click fires.
    ''' 
    ''' If this value is set to <c>true</c>, the application will send the events in this order for a Double-Click:
    ''' MouseDown, MouseUp, MouseDown, MouseDoubleClick
    ''' 
    ''' If this value is set to <c>false</c>, the application will send the events in this order for a Double-Click:
    ''' MouseDown, MouseUp, MouseDown, MouseUp, MouseDoubleClick
    ''' 
    ''' </summary>
    ''' <value><c>true</c> if MouseUp event is suppressed; otherwise <c>false</c>.</value>
    Friend Property SuppressMouseUpEventWhenDoubleClick As Boolean = False
 
#End Region
 
#Region " Enumerations "
 
    ''' <summary>
    ''' Indicates a Windows Message related to a mouse events.
    ''' For more info see here:
    ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ff468877%28v=vs.85%29.aspx
    ''' </summary>
    Private Enum MouseMessages As UInteger
 
        ''' <summary>
        ''' Posted to a window when the cursor moves. 
        ''' If the mouse is not captured, the message is posted to the window that contains the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MOUSEMOVE = &H200UI
 
        ''' <summary>
        ''' Posted when the user presses the left mouse button while the cursor is in the client area of a window.
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor.
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONDOWN = &H201UI
 
        ''' <summary>
        ''' Posted when the user releases the left mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONUP = &H202UI
 
        ''' <summary>
        ''' Posted when the user presses the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONDOWN = &H204UI
 
        ''' <summary>
        ''' Posted when the user releases the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONUP = &H205UI
 
        ''' <summary>
        ''' Posted when the user presses the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONDOWN = &H207UI
 
        ''' <summary>
        ''' Posted when the user releases the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONUP = &H208UI
 
        ''' <summary>
        ''' Sent to the active window when the mouse's horizontal scroll wheel is tilted or rotated. 
        ''' The DefWindowProc function propagates the message to the window's parent. 
        ''' There should be no internal forwarding of the message, 
        ''' since DefWindowProc propagates it up the parent chain until it finds a window that processes it.
        ''' </summary>
        WM_MOUSEWHEEL = &H20AUI
 
    End Enum
 
    ''' <summary>
    ''' Indicates the whell direction of the mouse.
    ''' </summary>
    Public Enum WheelDirection As Integer
 
        ''' <summary>
        ''' The wheel is moved up.
        ''' </summary>
        WheelUp = 1
 
        ''' <summary>
        ''' The wheel is moved down.
        ''' </summary>
        WheelDown = 2
 
    End Enum
 
#End Region
 
#Region " Events "
 
    ''' <summary>
    ''' Occurs when the mouse moves.
    ''' </summary>
    Friend Event MouseMove(ByVal sender As Object,
                           ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is pressed.
    ''' </summary>
    Friend Event MouseLeftDown(ByVal sender As Object,
                               ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is released.
    ''' </summary>
    Friend Event MouseLeftUp(ByVal sender As Object,
                             ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button performs a double-click.
    ''' A double click is considered as: (MouseLeftDown + MouseLeftUp) * 2
    ''' </summary>
    Friend Event MouseLeftDoubleClick(ByVal sender As Object,
                                      ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is pressed.
    ''' </summary>
    Friend Event MouseRightDown(ByVal sender As Object,
                                ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is released.
    ''' </summary>
    Friend Event MouseRightUp(ByVal sender As Object,
                              ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button performs a double-click.
    ''' A double click is considered as: (MouseLeftDown + MouseLeftUp) * 2
    ''' </summary>
    Friend Event MouseRightDoubleClick(ByVal sender As Object,
                                       ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is pressed.
    ''' </summary>
    Friend Event MouseMiddleDown(ByVal sender As Object,
                                 ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is released.
    ''' </summary>
    Friend Event MouseMiddleUp(ByVal sender As Object,
                               ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button performs a double-click.
    ''' A double click is considered as: (MouseLeftDown + MouseLeftUp) * 2
    ''' </summary>
    Friend Event MouseMiddleDoubleClick(ByVal sender As Object,
                                        ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse wheel is moved up or down.
    ''' </summary>
    Friend Event MouseWheel(ByVal sender As Object,
                            ByVal MouseLocation As Point,
                            ByVal WheelDirection As WheelDirection)
 
#End Region
 
#Region " Constructors "
 
    ''' <summary>
    ''' Prevents a default instance of the <see cref="MouseHook"/> class from being created.
    ''' </summary>
    Private Sub New()
    End Sub
 
    ''' <summary>
    ''' Initializes a new instance of the <see cref="MouseHook"/> class.
    ''' </summary>
    ''' <param name="AutoStart">
    ''' If set to <c>true</c>, the Hook starts instantly for this <see cref="MouseHook"/> instance.
    ''' </param>
    Friend Sub New(Optional ByVal AutoStart As Boolean = False)
 
        If AutoStart Then
            Me.[Start]()
        End If
 
    End Sub
 
#End Region
 
#Region " Public Methods "
 
    ''' <summary>
    ''' Starts the Mouse Hook, then start processing messages to fire events.
    ''' </summary>
    Friend Sub [Start]()
 
        Me.MouseHookDelegate = New NativeMethods.LowLevelMouseProcDelegate(AddressOf LowLevelMouseProc)
 
        Try
            Me.MouseHook = NativeMethods.SetWindowsHookEx(NativeMethods.HookType.WH_MOUSE_LL,
                                                          Me.MouseHookDelegate,
                                                          Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly.GetModules()(0)).ToInt32, 0)
 
        Catch ex As Exception
            Throw
 
        End Try
 
    End Sub
 
    ''' <summary>
    ''' Stops the Mouse Hook and free all resources, then stop processing messages to fire events.
    ''' </summary>
    Friend Sub [Stop]()
 
        Me.Finalize()
 
    End Sub
 
#End Region
 
#Region " Private Methods "
 
    ''' <summary>
    ''' Processes the mouse windows messages and raises it's corresponding events.
    ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644986%28v=vs.85%29.aspx
    ''' </summary>
    ''' <param name="nCode">
    ''' A code the hook procedure uses to determine how to process the message. 
    ''' If nCode is less than zero, the hook procedure must pass the message to the CallNextHookEx function 
    ''' without further processing and should return the value returned by CallNextHookEx. 
    ''' </param>
    ''' <param name="wParam">The identifier of the mouse message.</param>
    ''' <param name="lParam"> A pointer to an <see cref="NativeMethods.MSLLHOOKSTRUCT"/> structure.</param>
    ''' <returns>
    ''' If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
    ''' If nCode is greater than or equal to zero, and the hook procedure did not process the message,
    ''' it is highly recommended that you call CallNextHookEx and return the value it returns;
    ''' otherwise, other applications that have installed WH_MOUSE_LL hooks will not receive hook notifications
    ''' and may behave incorrectly as a result.
    ''' If the hook procedure processed the message,
    ''' it may return a nonzero value to prevent the system from passing the 
    ''' message to the rest of the hook chain or the target window procedure.
    ''' </returns>
    Private Function LowLevelMouseProc(ByVal nCode As Integer,
                                       ByVal wParam As MouseMessages,
                                       ByRef lParam As NativeMethods.MSLLHOOKSTRUCT) As Integer
 
        Static LeftClickTime As Integer = 0I ' Determines a left button double-click.
        Static RightClickTime As Integer = 0I ' Determines a right button double-click.
        Static MiddleClickTime As Integer = 0I ' Determines a middle button double-click.
 
        If nCode = 0I Then
 
            Select Case wParam
 
                Case MouseMessages.WM_MOUSEMOVE
                    RaiseEvent MouseMove(Me, lParam.pt)
 
                Case MouseMessages.WM_LBUTTONDOWN
                    RaiseEvent MouseLeftDown(Me, lParam.pt)
 
                Case MouseMessages.WM_LBUTTONUP
                    If LeftClickTime <> 0 Then
                        LeftClickTime = Environment.TickCount() - LeftClickTime
                    End If
 
                    If (LeftClickTime <> 0) AndAlso (LeftClickTime < NativeMethods.GetDoubleClickTime()) Then
                        LeftClickTime = 0
                        If Not Me.SuppressMouseUpEventWhenDoubleClick Then
                            RaiseEvent MouseLeftUp(Me, lParam.pt)
                        End If
                        RaiseEvent MouseLeftDoubleClick(Me, lParam.pt)
 
                    Else
                        LeftClickTime = Environment.TickCount()
                        RaiseEvent MouseLeftUp(Me, lParam.pt)
 
                    End If
 
                Case MouseMessages.WM_RBUTTONDOWN
                    RaiseEvent MouseRightDown(Me, lParam.pt)
 
                Case MouseMessages.WM_RBUTTONUP
                    If RightClickTime <> 0 Then
                        RightClickTime = Environment.TickCount() - RightClickTime
                    End If
 
                    If (RightClickTime <> 0) AndAlso (RightClickTime < NativeMethods.GetDoubleClickTime()) Then
                        RightClickTime = 0
                        If Not Me.SuppressMouseUpEventWhenDoubleClick Then
                            RaiseEvent MouseRightUp(Me, lParam.pt)
                        End If
                        RaiseEvent MouseRightDoubleClick(Me, lParam.pt)
 
                    Else
                        RightClickTime = Environment.TickCount()
                        RaiseEvent MouseRightUp(Me, lParam.pt)
 
                    End If
 
                Case MouseMessages.WM_MBUTTONDOWN
                    RaiseEvent MouseMiddleDown(Me, lParam.pt)
 
                Case MouseMessages.WM_MBUTTONUP
                    If MiddleClickTime <> 0 Then
                        MiddleClickTime = Environment.TickCount() - MiddleClickTime
                    End If
 
                    If (MiddleClickTime <> 0) AndAlso (MiddleClickTime < NativeMethods.GetDoubleClickTime()) Then
                        MiddleClickTime = 0
                        If Not Me.SuppressMouseUpEventWhenDoubleClick Then
                            RaiseEvent MouseMiddleUp(Me, lParam.pt)
                        End If
                        RaiseEvent MouseMiddleDoubleClick(Me, lParam.pt)
 
                    Else
                        MiddleClickTime = Environment.TickCount()
                        RaiseEvent MouseMiddleUp(Me, lParam.pt)
 
                    End If
 
                Case MouseMessages.WM_MOUSEWHEEL
                    RaiseEvent MouseWheel(Me, lParam.pt, If(lParam.mouseData < 0,
                                                            WheelDirection.WheelDown,
                                                            WheelDirection.WheelUp))
 
                Case Else
                    Exit Select ' Do Nothing
 
            End Select
 
            Return 0
 
        ElseIf nCode < 0I Then
 
            ' Initialize unmanged memory to hold the 'MSLLHOOKSTRUCT' structure.
            Dim pnt As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(lParam))
 
            Try ' MSDN Documentation: http://msdn.microsoft.com/en-us/library/vstudio/4ca6d5z7%28v=vs.100%29.aspx
 
                ' Copy the struct to unmanaged memory.
                Marshal.StructureToPtr(lParam, pnt, False)
 
                ' Return 
                Return NativeMethods.CallNextHookEx(MouseHook, nCode, wParam, pnt)
 
            Finally
                ' Free the unmanaged memory.
                Marshal.FreeHGlobal(pnt)
            End Try
 
        Else ' nCode > 0
 
            Return -1I
 
        End If
 
    End Function
 
#End Region
 
#Region " Hidden Methods "
 
    ''' <summary>
    ''' Serves as a hash function for a particular type.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Sub GetHashCode()
    End Sub
 
    ''' <summary>
    ''' Gets the System.Type of the current instance.
    ''' </summary>
    ''' <returns>The exact runtime type of the current instance.</returns>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Function [GetType]()
        Return Me.GetType
    End Function
 
    ''' <summary>
    ''' Determines whether the specified System.Object instances are considered equal.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Sub Equals()
    End Sub
 
    ''' <summary>
    ''' Determines whether the specified System.Object instances are the same instance.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Private Shadows Sub ReferenceEquals()
    End Sub
 
    ''' <summary>
    ''' Returns a String that represents the current object.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Sub ToString()
    End Sub
 
#End Region
 
#Region "IDisposable Support"
 
    ''' <summary>
    ''' Flag to detect redundant calls at <see cref="Dispose"/> method.
    ''' </summary>
    Private disposedValue As Boolean
 
    ''' <summary>
    ''' Releases unmanaged and optionally managed resources.
    ''' </summary>
    ''' <param name="disposing">
    ''' <c>true</c> to release both managed and unmanaged resources; 
    ''' <c>false</c> to release only unmanaged resources.
    ''' </param>
    Protected Sub Dispose(ByVal disposing As Boolean)
 
        If Not Me.disposedValue Then
 
            If disposing Then ' Dispose managed state (managed objects).
 
            Else ' Free unmanaged resources (unmanaged objects).
                NativeMethods.UnhookWindowsHookEx(Me.MouseHook)
 
            End If
 
        End If
 
        Me.disposedValue = True
 
    End Sub
 
    ''' <summary>
    ''' Allows an object to try to free resources
    ''' and perform other cleanup operations before it is reclaimed by garbage collection.
    ''' </summary>
    Protected Overrides Sub Finalize()
 
        ' Do not change this code. Put cleanup code in method: Dispose(ByVal disposing As Boolean)
 
        Me.Dispose(disposing:=False)
        MyBase.Finalize()
 
    End Sub
 
    ''' <summary>
    ''' Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
    ''' </summary>
    Private Sub Dispose() Implements IDisposable.Dispose
 
        ' Do not change this code. Put cleanup code in method: Dispose(ByVal disposing As Boolean)
 
        Me.Dispose(disposing:=True)
        GC.SuppressFinalize(obj:=Me)
 
    End Sub
 
#End Region
 
End Class
 
#End Region

' ***********************************************************************
' Author           : Elektro
' Last Modified On : 09-26-2014
' ***********************************************************************
' <copyright file="MouseHook.vb" company="Elektro Studios">
'     Copyright (c) Elektro Studios. All rights reserved.
' </copyright>
' ***********************************************************************
 
#Region " Instructions "
 
' Go to page:
' Project > Properties > Debug
'
' Then uncheck the option:
' "Enable the Visual Studio Hosting Process"
 
#End Region
 
#Region " Usage Examples "
 
#End Region
 
#Region " Imports "
 
Imports System.ComponentModel
Imports System.Reflection
Imports System.Runtime.InteropServices
 
#End Region
 
#Region " MouseHook "
 
''' <summary>
''' A low level mouse hook that processes mouse input events.
''' </summary>
Friend NotInheritable Class MouseHook : Implements IDisposable
 
#Region " P/Invoke "
 
    ''' <summary>
    ''' Platform Invocation methods (P/Invoke), access unmanaged code.
    ''' This class does not suppress stack walks for unmanaged code permission.
    ''' <see cref="System.Security.SuppressUnmanagedCodeSecurityAttribute"/>  must not be applied to this class.
    ''' This class is for methods that can be used anywhere because a stack walk will be performed.
    ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/ms182161.aspx
    ''' </summary>
    Protected NotInheritable Class NativeMethods
 
#Region " Methods "
 
        ''' <summary>
        ''' Passes the hook information to the next hook procedure in the current hook chain. 
        ''' A hook procedure can call this function either before or after processing the hook information.
        ''' For more info see here:
        ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644974%28v=vs.85%29.aspx
        ''' </summary>
        ''' <param name="idHook">
        ''' This parameter is ignored.
        ''' </param>
        ''' <param name="nCode">
        ''' The hook code passed to the current hook procedure. 
        ''' The next hook procedure uses this code to determine how to process the hook information.
        ''' </param>
        ''' <param name="wParam">
        ''' The wParam value passed to the current hook procedure. 
        ''' The meaning of this parameter depends on the type of hook associated with the current hook chain.
        ''' </param>
        ''' <param name="lParam">
        ''' The lParam value passed to the current hook procedure. 
        ''' The meaning of this parameter depends on the type of hook associated with the current hook chain.
        ''' </param>
        ''' <returns>
        ''' This value is returned by the next hook procedure in the chain. 
        ''' The current hook procedure must also return this value. 
        ''' The meaning of the return value depends on the hook type. 
        ''' For more information, see the descriptions of the individual hook procedures.
        ''' </returns>
        <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
        Friend Shared Function CallNextHookEx(
               ByVal idHook As IntPtr,
               ByVal nCode As Integer,
               ByVal wParam As IntPtr,
               ByVal lParam As IntPtr
        ) As IntPtr
        End Function
 
        ''' <summary>
        ''' Installs an application-defined hook procedure into a hook chain. 
        ''' You would install a hook procedure to monitor the system for certain types of events. 
        ''' These events are associated either with a specific thread 
        ''' or with all threads in the same desktop as the calling thread.
        ''' For more info see here:
        ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644990%28v=vs.85%29.aspx
        ''' </summary>
        ''' <param name="idHook">
        ''' The type of hook procedure to be installed.
        ''' </param>
        ''' <param name="lpfn">
        ''' A pointer to the hook procedure. 
        ''' If the dwThreadId parameter is zero or specifies the identifier of a thread created by a different process, 
        ''' the lpfn parameter must point to a hook procedure in a DLL. 
        ''' Otherwise, lpfn can point to a hook procedure in the code associated with the current process.
        ''' </param>
        ''' <param name="hInstance">
        ''' A handle to the DLL containing the hook procedure pointed to by the lpfn parameter. 
        ''' The hMod parameter must be set to NULL if the dwThreadId parameter specifies a thread created by 
        ''' the current process and if the hook procedure is within the code associated with the current process.
        ''' </param>
        ''' <param name="threadId">
        ''' The identifier of the thread with which the hook procedure is to be associated. 
        ''' For desktop apps, if this parameter is zero, the hook procedure is associated 
        ''' with all existing threads running in the same desktop as the calling thread. 
        ''' </param>
        ''' <returns>
        ''' If the function succeeds, the return value is the handle to the hook procedure.
        ''' If the function fails, the return value is NULL.
        ''' </returns>
        <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
        Friend Shared Function SetWindowsHookEx(
               ByVal idHook As HookType,
               ByVal lpfn As LowLevelMouseProcDelegate,
               ByVal hInstance As IntPtr,
               ByVal threadId As UInteger
        ) As IntPtr
        End Function
 
        ''' <summary>
        ''' Removes a hook procedure installed in a hook chain by the 'SetWindowsHookEx' function.
        ''' For more info see here:
        ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ms644993%28v=vs.85%29.aspx
        ''' </summary>
        ''' <param name="idHook">
        ''' A handle to the hook to be removed. 
        ''' This parameter is a hook handle obtained by a previous call to SetWindowsHookEx.
        ''' </param>
        ''' <returns>
        ''' If the function succeeds, the return value is nonzero.
        ''' If the function fails, the return value is zero.
        ''' </returns>
        <DllImport("user32.dll", CallingConvention:=CallingConvention.StdCall, CharSet:=CharSet.Auto)>
        Friend Shared Function UnhookWindowsHookEx(
               ByVal idHook As IntPtr
        ) As Boolean
        End Function
 
        ''' <summary>
        ''' Retrieves the current double-click time for the mouse. 
        ''' A double-click is a series of two clicks of the mouse button, 
        ''' the second occurring within a specified time after the first. 
        ''' The double-click time is the maximum number of milliseconds that may occur 
        ''' between the first and second click of a double-click. 
        ''' The maximum double-click time is 5000 milliseconds.
        ''' </summary>
        ''' <returns>
        ''' The return value specifies the current double-click time, in milliseconds. 
        ''' The maximum return value is 5000 milliseconds.
        ''' </returns>
        <DllImport("user32.dll", CharSet:=CharSet.Auto)>
        Friend Shared Function GetDoubleClickTime() As Integer
        End Function
 
#End Region
 
#Region " Enumerations "
 
        ''' <summary>
        ''' Indicates a type of Hook procedure to be installed.
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644990%28v=vs.85%29.aspx
        ''' </summary>
        <Description("Enum used in 'idHook' parameter of 'SetWindowsHookEx' function.")>
        Friend Enum HookType As UInteger
 
            ' **************************************
            ' This enumeration is partially defined.
            ' **************************************
 
            ''' <summary>
            ''' Installs a hook procedure that monitors low-level mouse input events. 
            ''' For more information, see the LowLevelMouseProc hook procedure.
            ''' </summary>
            WH_MOUSE_LL = 14UI
 
        End Enum
 
        ''' <summary>
        ''' The event-injected flags. 
        ''' An application can use the following values to test the flags. 
        ''' Testing LLMHF_INJECTED (bit 0) will tell you whether the event was injected. 
        ''' If it was, then testing LLMHF_LOWER_IL_INJECTED (bit 1) will tell you 
        ''' whether or not the event was injected from a process running at lower integrity level.
        ''' </summary>
        <Flags()>
        <Description("Enum used in 'flags' parameter of 'MSLLHOOKSTRUCT' structure.")>
        Public Enum MSLLHOOKSTRUCTFlags As Integer
 
            ''' <summary>
            ''' Test the event-injected (from any process) flag.
            ''' </summary>
            LLMHF_INJECTED = 1
 
            ''' <summary>
            ''' Test the event-injected (from a process running at lower integrity level) flag.
            ''' </summary>
            LLMHF_LOWER_IL_INJECTED = 2
 
        End Enum
 
#End Region
 
#Region " Structures "
 
        ''' <summary>
        ''' The POINT structure defines the x- and y- coordinates of a point.
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/dd162805%28v=vs.85%29.aspx
        ''' </summary>
        <Description("Structure used in 'pt' parameter of 'MSLLHOOKSTRUCT' structure.")>
        <StructLayout(LayoutKind.Sequential)>
        Friend Structure POINT
 
            ''' <summary>
            ''' The x-coordinate of the point.
            ''' </summary>
            Public X As Integer
 
            ''' <summary>
            ''' The y-coordinate of the point.
            ''' </summary>
            Public Y As Integer
 
        End Structure
 
        ''' <summary>
        ''' Contains information about a low-level mouse input event.
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644970%28v=vs.85%29.aspx
        ''' </summary>
        <Description("Structure used in 'lParam' parameter of 'CallNextHookEx' function.")>
        Friend Structure MSLLHOOKSTRUCT
 
            ''' <summary>
            ''' The ptThe x- and y-coordinates of the cursor, in screen coordinates.
            ''' </summary>
            Friend pt As NativeMethods.POINT
 
            ''' <summary>
            ''' If the message is 'WM_MOUSEWHEEL', the high-order word of this member is the wheel delta. 
            ''' The low-order word is reserved. 
            ''' A positive value indicates that the wheel was rotated forward, away from the user; 
            ''' a negative value indicates that the wheel was rotated backward, toward the user. 
            ''' One wheel click is defined as 'WHEEL_DELTA', which is '120'.
            ''' </summary>
            Friend mouseData As Integer
 
            ''' <summary>
            ''' The event-injected flag.
            ''' </summary>
            Friend flags As MSLLHOOKSTRUCTFlags
 
            ''' <summary>
            ''' The time stamp for this message. 
            ''' </summary>
            Friend time As UInteger
 
            ''' <summary>
            ''' Additional information associated with the message.
            ''' </summary>
            Friend dwExtraInfo As IntPtr
 
        End Structure
 
#End Region
 
#Region " Delegates "
 
        ''' <summary>
        ''' Delegate LowLevelMouseProc
        ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644986%28v=vs.85%29.aspx
        ''' </summary>
        ''' <returns>
        ''' If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
        ''' If nCode is greater than or equal to zero, and the hook procedure did not process the message, 
        ''' it is highly recommended that you call CallNextHookEx and return the value it returns; 
        ''' otherwise, other applications that have installed WH_MOUSE_LL hooks will not receive hook notifications 
        ''' and may behave incorrectly as a result.
        ''' If the hook procedure processed the message, 
        ''' it may return a nonzero value to prevent the system from passing the message to the rest of the hook chain or the target window procedure. 
        ''' </returns>
        Friend Delegate Function LowLevelMouseProcDelegate(
                ByVal nCode As IntPtr,
                ByVal wParam As IntPtr,
                ByVal lParam As IntPtr
        ) As Integer
 
#End Region
 
#Region " Hidden Methods "
 
        ''' <summary>
        ''' Determines whether the specified System.Object instances are considered equal.
        ''' </summary>
        <EditorBrowsable(EditorBrowsableState.Never)>
        Public Shadows Sub Equals()
        End Sub
 
        ''' <summary>
        ''' Determines whether the specified System.Object instances are the same instance.
        ''' </summary>
        <EditorBrowsable(EditorBrowsableState.Never)>
        Private Shadows Sub ReferenceEquals()
        End Sub
 
#End Region
 
    End Class
 
#End Region
 
#Region " Objects "
 
    ''' <summary>
    ''' Handle to the hook procedure.
    ''' </summary>
    Private MouseHook As IntPtr
 
    ''' <summary>
    ''' The mouse hook delegate.
    ''' </summary>
    Private MouseHookDelegate As NativeMethods.LowLevelMouseProcDelegate
 
#End Region
 
#Region " Properties "
 
    ''' <summary>
    ''' ** ONLY FOR TESTING PURPOSES **
    ''' Gets or sets a value indicating whether to suppress the last MouseUp event of 
    ''' the specified clicked button when a double-click fires.
    ''' 
    ''' If this value is set to <c>true</c>, the application will send the events in this order for a Double-Click:
    ''' MouseDown, MouseUp, MouseDown, MouseDoubleClick
    ''' 
    ''' If this value is set to <c>false</c>, the application will send the events in this order for a Double-Click:
    ''' MouseDown, MouseUp, MouseDown, MouseUp, MouseDoubleClick
    ''' 
    ''' </summary>
    ''' <value><c>true</c> if MouseUp event is suppressed; otherwise <c>false</c>.</value>
    Friend Property SuppressMouseUpEventWhenDoubleClick As Boolean = False
 
#End Region
 
#Region " Enumerations "
 
    ''' <summary>
    ''' Indicates a Windows Message related to a mouse events.
    ''' For more info see here:
    ''' http://msdn.microsoft.com/en-us/library/windows/desktop/ff468877%28v=vs.85%29.aspx
    ''' </summary>
    Private Enum MouseMessages As UInteger
 
        ''' <summary>
        ''' Posted to a window when the cursor moves. 
        ''' If the mouse is not captured, the message is posted to the window that contains the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MOUSEMOVE = &H200UI
 
        ''' <summary>
        ''' Posted when the user presses the left mouse button while the cursor is in the client area of a window.
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor.
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONDOWN = &H201UI
 
        ''' <summary>
        ''' Posted when the user releases the left mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_LBUTTONUP = &H202UI
 
        ''' <summary>
        ''' Posted when the user presses the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONDOWN = &H204UI
 
        ''' <summary>
        ''' Posted when the user releases the right mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_RBUTTONUP = &H205UI
 
        ''' <summary>
        ''' Posted when the user presses the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONDOWN = &H207UI
 
        ''' <summary>
        ''' Posted when the user releases the middle mouse button while the cursor is in the client area of a window. 
        ''' If the mouse is not captured, the message is posted to the window beneath the cursor. 
        ''' Otherwise, the message is posted to the window that has captured the mouse
        ''' </summary>
        WM_MBUTTONUP = &H208UI
 
        ''' <summary>
        ''' Sent to the active window when the mouse's horizontal scroll wheel is tilted or rotated. 
        ''' The DefWindowProc function propagates the message to the window's parent. 
        ''' There should be no internal forwarding of the message, 
        ''' since DefWindowProc propagates it up the parent chain until it finds a window that processes it.
        ''' </summary>
        WM_MOUSEWHEEL = &H20AUI
 
    End Enum
 
    ''' <summary>
    ''' Indicates the whell direction of the mouse.
    ''' </summary>
    Public Enum WheelDirection As Integer
 
        ''' <summary>
        ''' The wheel is moved up.
        ''' </summary>
        WheelUp = 1
 
        ''' <summary>
        ''' The wheel is moved down.
        ''' </summary>
        WheelDown = 2
 
    End Enum
 
#End Region
 
#Region " Events "
 
    ''' <summary>
    ''' Occurs when the mouse moves.
    ''' </summary>
    Friend Event MouseMove(ByVal sender As Object,
                           ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is pressed.
    ''' </summary>
    Friend Event MouseLeftDown(ByVal sender As Object,
                               ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button is released.
    ''' </summary>
    Friend Event MouseLeftUp(ByVal sender As Object,
                             ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse left button performs a double-click.
    ''' A double click is considered as: (MouseLeftDown + MouseLeftUp) * 2
    ''' </summary>
    Friend Event MouseLeftDoubleClick(ByVal sender As Object,
                                      ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is pressed.
    ''' </summary>
    Friend Event MouseRightDown(ByVal sender As Object,
                                ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button is released.
    ''' </summary>
    Friend Event MouseRightUp(ByVal sender As Object,
                              ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse right button performs a double-click.
    ''' A double click is considered as: (MouseLeftDown + MouseLeftUp) * 2
    ''' </summary>
    Friend Event MouseRightDoubleClick(ByVal sender As Object,
                                       ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is pressed.
    ''' </summary>
    Friend Event MouseMiddleDown(ByVal sender As Object,
                                 ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button is released.
    ''' </summary>
    Friend Event MouseMiddleUp(ByVal sender As Object,
                               ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse middle button performs a double-click.
    ''' A double click is considered as: (MouseLeftDown + MouseLeftUp) * 2
    ''' </summary>
    Friend Event MouseMiddleDoubleClick(ByVal sender As Object,
                                        ByVal MouseLocation As Point)
 
    ''' <summary>
    ''' Occurs when the mouse wheel is moved up or down.
    ''' </summary>
    Friend Event MouseWheel(ByVal sender As Object,
                            ByVal MouseLocation As Point,
                            ByVal WheelDirection As WheelDirection)
 
#End Region
 
#Region " Constructors "
 
    ''' <summary>
    ''' Prevents a default instance of the <see cref="MouseHook"/> class from being created.
    ''' </summary>
    Private Sub New()
    End Sub
 
    ''' <summary>
    ''' Initializes a new instance of the <see cref="MouseHook"/> class.
    ''' </summary>
    ''' <param name="Install">
    ''' If set to <c>true</c>, the Hook starts initialized for this <see cref="MouseHook"/> instance.
    ''' </param>
    Friend Sub New(Optional ByVal Install As Boolean = False)
 
        If Install Then
            Me.Install()
        End If
 
    End Sub
 
#End Region
 
#Region " Public Methods "
 
    ''' <summary>
    ''' Installs the Mouse Hook, then start processing messages to fire events.
    ''' </summary>
    Friend Sub Install()
 
        Me.MouseHookDelegate = New NativeMethods.LowLevelMouseProcDelegate(AddressOf LowLevelMouseProc)
 
        Try
            Me.MouseHook = NativeMethods.SetWindowsHookEx(NativeMethods.HookType.WH_MOUSE_LL,
                                                          Me.MouseHookDelegate,
                                                          Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly.GetModules()(0)).ToInt32, 0)
 
        Catch ex As Exception
            Throw
 
        End Try
 
    End Sub
 
    ''' <summary>
    ''' Uninstalls the Mouse Hook and free all resources, then stop processing messages to fire events.
    ''' </summary>
    Friend Sub Uninstall()
 
        Me.Finalize()
 
    End Sub
 
#End Region
 
#Region " Private Methods "
 
    ''' <summary>
    ''' Processes the mouse windows messages and raises it's corresponding events.
    ''' MSDN Documentation: http://msdn.microsoft.com/en-us/library/windows/desktop/ms644986%28v=vs.85%29.aspx
    ''' </summary>
    ''' <param name="nCode">
    ''' A code the hook procedure uses to determine how to process the message. 
    ''' If nCode is less than zero, the hook procedure must pass the message to the CallNextHookEx function 
    ''' without further processing and should return the value returned by CallNextHookEx. 
    ''' </param>
    ''' <param name="wParam">The identifier of the mouse message.</param>
    ''' <param name="lParam"> A pointer to an <see cref="NativeMethods.MSLLHOOKSTRUCT"/> structure.</param>
    ''' <returns>
    ''' If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.
    ''' If nCode is greater than or equal to zero, and the hook procedure did not process the message,
    ''' it is highly recommended that you call CallNextHookEx and return the value it returns;
    ''' otherwise, other applications that have installed WH_MOUSE_LL hooks will not receive hook notifications
    ''' and may behave incorrectly as a result.
    ''' If the hook procedure processed the message,
    ''' it may return a nonzero value to prevent the system from passing the 
    ''' message to the rest of the hook chain or the target window procedure.
    ''' </returns>
    Private Function LowLevelMouseProc(ByVal nCode As Integer,
                                       ByVal wParam As MouseMessages,
                                       ByVal lParam As IntPtr) As Integer
 
        Static LeftClickTime As Integer = 0I ' Determines a left button double-click.
        Static RightClickTime As Integer = 0I ' Determines a right button double-click.
        Static MiddleClickTime As Integer = 0I ' Determines a middle button double-click.
 
        If nCode = 0I Then
 
            Dim x As Integer
            Dim y As Integer
 
            Dim MouseStruct As NativeMethods.MSLLHOOKSTRUCT
            MouseStruct = CType(Marshal.PtrToStructure(lParam, MouseStruct.GetType()), 
                                NativeMethods.MSLLHOOKSTRUCT)
 
            ' Fix X coordinate.
            Select Case MouseStruct.pt.X
 
                Case Is < 0I
                    x = 0I
 
                Case Is > SystemInformation.VirtualScreen.Width
                    x = SystemInformation.VirtualScreen.Width
 
                Case Else
                    x = MouseStruct.pt.X
 
            End Select
 
            ' Fix Y coordinate.
            Select Case MouseStruct.pt.Y
 
                Case Is > SystemInformation.VirtualScreen.Height
                    y = SystemInformation.VirtualScreen.Height
 
                Case Is < 0I
                    y = 0I
 
                Case Else
                    y = MouseStruct.pt.Y
 
            End Select
 
            Select Case wParam
 
                Case MouseMessages.WM_MOUSEMOVE
                    RaiseEvent MouseMove(Me, New Point(x, y))
 
                Case MouseMessages.WM_LBUTTONDOWN
                    RaiseEvent MouseLeftDown(Me, New Point(x, y))
 
                Case MouseMessages.WM_LBUTTONUP
                    If LeftClickTime <> 0 Then
                        LeftClickTime = Environment.TickCount() - LeftClickTime
                    End If
 
                    If (LeftClickTime <> 0) AndAlso (LeftClickTime < NativeMethods.GetDoubleClickTime()) Then
                        LeftClickTime = 0
                        If Not Me.SuppressMouseUpEventWhenDoubleClick Then
                            RaiseEvent MouseLeftUp(Me, New Point(x, y))
                        End If
                        RaiseEvent MouseLeftDoubleClick(Me, New Point(x, y))
 
                    Else
                        LeftClickTime = Environment.TickCount()
                        RaiseEvent MouseLeftUp(Me, New Point(x, y))
 
                    End If
 
                Case MouseMessages.WM_RBUTTONDOWN
                    RaiseEvent MouseRightDown(Me, New Point(x, y))
 
                Case MouseMessages.WM_RBUTTONUP
                    If RightClickTime <> 0 Then
                        RightClickTime = Environment.TickCount() - RightClickTime
                    End If
 
                    If (RightClickTime <> 0) AndAlso (RightClickTime < NativeMethods.GetDoubleClickTime()) Then
                        RightClickTime = 0
                        If Not Me.SuppressMouseUpEventWhenDoubleClick Then
                            RaiseEvent MouseRightUp(Me, New Point(x, y))
                        End If
                        RaiseEvent MouseRightDoubleClick(Me, New Point(x, y))
 
                    Else
                        RightClickTime = Environment.TickCount()
                        RaiseEvent MouseRightUp(Me, New Point(x, y))
 
                    End If
 
                Case MouseMessages.WM_MBUTTONDOWN
                    RaiseEvent MouseMiddleDown(Me, New Point(x, y))
 
                Case MouseMessages.WM_MBUTTONUP
                    If MiddleClickTime <> 0 Then
                        MiddleClickTime = Environment.TickCount() - MiddleClickTime
                    End If
 
                    If (MiddleClickTime <> 0) AndAlso (MiddleClickTime < NativeMethods.GetDoubleClickTime()) Then
                        MiddleClickTime = 0
                        If Not Me.SuppressMouseUpEventWhenDoubleClick Then
                            RaiseEvent MouseMiddleUp(Me, New Point(x, y))
                        End If
                        RaiseEvent MouseMiddleDoubleClick(Me, New Point(x, y))
 
                    Else
                        MiddleClickTime = Environment.TickCount()
                        RaiseEvent MouseMiddleUp(Me, New Point(x, y))
 
                    End If
 
                Case MouseMessages.WM_MOUSEWHEEL
                    RaiseEvent MouseWheel(Me, New Point(x, y), If(MouseStruct.mouseData < 0,
                                                                 WheelDirection.WheelDown,
                                                                 WheelDirection.WheelUp))
 
                Case Else
                    Exit Select ' Do Nothing
 
            End Select
 
            Return 0
 
        ElseIf nCode < 0I Then
            Return NativeMethods.CallNextHookEx(MouseHook, nCode, wParam, lParam)
 
        Else ' nCode > 0
            Return -1I
 
        End If
 
    End Function
 
#End Region
 
#Region " Hidden Methods "
 
    ''' <summary>
    ''' Serves as a hash function for a particular type.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Sub GetHashCode()
    End Sub
 
    ''' <summary>
    ''' Gets the System.Type of the current instance.
    ''' </summary>
    ''' <returns>The exact runtime type of the current instance.</returns>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Function [GetType]()
        Return Me.GetType
    End Function
 
    ''' <summary>
    ''' Determines whether the specified System.Object instances are considered equal.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Sub Equals()
    End Sub
 
    ''' <summary>
    ''' Determines whether the specified System.Object instances are the same instance.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Private Shadows Sub ReferenceEquals()
    End Sub
 
    ''' <summary>
    ''' Returns a String that represents the current object.
    ''' </summary>
    <EditorBrowsable(EditorBrowsableState.Never)>
    Public Shadows Sub ToString()
    End Sub
 
#End Region
 
#Region "IDisposable Support"
 
    ''' <summary>
    ''' Flag to detect redundant calls at <see cref="Dispose"/> method.
    ''' </summary>
    Private disposedValue As Boolean
 
    ''' <summary>
    ''' Releases unmanaged and optionally managed resources.
    ''' </summary>
    ''' <param name="disposing">
    ''' <c>true</c> to release both managed and unmanaged resources; 
    ''' <c>false</c> to release only unmanaged resources.
    ''' </param>
    Protected Sub Dispose(ByVal disposing As Boolean)
 
        If Not Me.disposedValue Then
 
            If disposing Then ' Dispose managed state (managed objects).
 
            Else ' Free unmanaged resources (unmanaged objects).
                NativeMethods.UnhookWindowsHookEx(Me.MouseHook)
 
            End If
 
        End If
 
        Me.disposedValue = True
 
    End Sub
 
    ''' <summary>
    ''' Allows an object to try to free resources
    ''' and perform other cleanup operations before it is reclaimed by garbage collection.
    ''' </summary>
    Protected Overrides Sub Finalize()
 
        ' Do not change this code. Put cleanup code in method: Dispose(ByVal disposing As Boolean)
 
        Me.Dispose(disposing:=False)
        MyBase.Finalize()
 
    End Sub
 
    ''' <summary>
    ''' Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
    ''' </summary>
    Private Sub Dispose() Implements IDisposable.Dispose
 
        ' Do not change this code. Put cleanup code in method: Dispose(ByVal disposing As Boolean)
 
        Me.Dispose(disposing:=True)
        GC.SuppressFinalize(obj:=Me)
 
    End Sub
 
#End Region
 
End Class
 
#End Region