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Private Const INPUT_KEYBOARD As Long = 1

Private Const KEYEVENTF_KEYDOWN As Long = 0
Private Const KEYEVENTF_KEYUP As Long = &H2

Private Const RSH_REGISTER_TASKMAN As Long = 3
Private Const HSHELL_WINDOWACTIVATED As Long = 4

Private Const GWL_WNDPROC As Long = -4
Private Const RSH_DEREGISTER As Long = 0

Private Const GHND As Long = &H42
Private Const CF_HDROP As Long = &HF

'---------------------------------------------------------------------------------------
' Types
'---------------------------------------------------------------------------------------
Private Type KEYBDINPUT
    wVk As Integer
    wScan As Integer
    dwFlags As Long
    time As Long
    dwExtraInfo As Long
End Type

Private Type GENERALINPUT
    dwType As Long
    xi(0 To 23) As Byte
End Type

Private Type POINTAPI
   x As Long
   y As Long
End Type

Private Type DROPFILES
   pFiles As Long
   pt As POINTAPI
   fNC As Long
   fWide As Long
End Type

'---------------------------------------------------------------------------------------
' Apis
'---------------------------------------------------------------------------------------
Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" ( _
    ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, _
    ByVal lpParameters As String, ByVal lpDirectory As String, _
    ByVal nShowCmd As Long) As Long

Private Declare Function GetShortPathName Lib "kernel32" Alias _
    "GetShortPathNameA" (ByVal lLongPath As String, ByVal lShortPath As String, _
    ByVal lBuffer As Long) As Long
    
Private Declare Function EmptyClipboard Lib "user32" () As Long
Private Declare Function OpenClipboard Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function CloseClipboard Lib "user32" () As Long
Private Declare Function SetClipboardData Lib "user32" (ByVal wFormat As Long, _
    ByVal hMem As Long) As Long

Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, _
    ByVal dwBytes As Long) As Long
Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long
Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long
Private Declare Function GlobalUnlock Lib "kernel32" ( _
    ByVal hMem As Long) As Long
Private Declare Sub CopyMem Lib "kernel32" Alias "RtlMoveMemory" ( _
    Destination As Any, Source As Any, ByVal Length As Long)

Private Declare Function RegisterWindowMessage Lib "user32" Alias _
    "RegisterWindowMessageA" (ByVal lpString As String) As Long
Private Declare Function RegisterShellHook Lib "Shell32" Alias "#181" ( _
    ByVal hwnd As Long, ByVal nAction As Long) As Long
Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" ( _
    ByVal hwnd As Long, ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" ( _
    ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" ( _
    ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal Msg As Long, _
    ByVal wParam As Long, ByVal lParam As Long) As Long

Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" ( _
    ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long

Private Declare Function SendInput Lib "user32.dll" (ByVal nInputs As Long, _
    pInputs As GENERALINPUT, ByVal cbSize As Long) As Long

'
'---------------------------------------------------------------------------------------
' Procedure : CopyClipboard
' Purpose   : Copy a coma delimited file list to the clipboard
'---------------------------------------------------------------------------------------
Private Function CopyClipboard(ByVal hwnd As Long, ByVal sData As String) As Boolean
    Dim hGlobal As Long
    Dim DF As DROPFILES
    Dim lpGlobal As Long
    Dim strFiles As String
    
    Dim svFiles() As String
    Dim i As Long
    
    Clipboard.Clear
    svFiles = Split(sData, ",")
    For i = 0 To UBound(svFiles)
        svFiles(i) = Trim$(svFiles(i))
        If File_Exists(svFiles(i)) Then
            strFiles = strFiles & svFiles(i) & Chr(0)
        End If
    Next
 
    Call OpenClipboard(hwnd)

    Call EmptyClipboard
    
    hGlobal = GlobalAlloc(GHND, Len(DF) + Len(strFiles))
    
    If hGlobal Then 'if the globalalloc worked
        lpGlobal = GlobalLock(hGlobal) 'lock the hGlobal
        DF.pFiles = Len(DF) 'set the size of the files
  
        Call CopyMem(ByVal lpGlobal, DF, Len(DF)) 'copy df to the lpglobal
        Call CopyMem(ByVal (lpGlobal + Len(DF)), ByVal strFiles, Len(strFiles)) 'copy strfiles to lpglobal
        Call GlobalUnlock(hGlobal) 'unlock hglobal again
  
        SetClipboardData CF_HDROP, hGlobal 'put files to the clipboard
        GlobalFree hGlobal
        
    End If
    
    Call CloseClipboard

End Function