Foro de elhacker.net

Private Sub Command1_Click()
Dim PID As String
PID = Shell(Environ("windir") & "\system32\calc.exe", vbNormalFocus)
MsgBox "El Process ID de la calculadora es: " & PID, vbInformation, "Obtener PID"
End Sub

http://www.recursosvisualbasic.com.ar/htm/trucos-codigofuente-visual-basic/42.htm#2

HANDLE handle=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
 PROCESSENTRY32 procinfo={sizeof(PROCESSENTRY32)};
 while(Process32Next(handle,&procinfo))
	 {
	  if(strcmp(procinfo.szExeFile,"micosa.exe")==0)
		{
		 pid=procinfo.th32ProcessID ;                               }
                                }
                 }

Option Explicit

Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal Hwnd As Long, lpdwprocessid As Long) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Private Sub Command1_Click()

  Shell "calc"
  
  Dim Handle As Long: Handle = FindWindow("Scicalc", vbNullString)
  Dim idProc As Long: Call GetWindowThreadProcessId(Handle, idProc)
  
  MsgBox idProc

End Sub

Option Explicit

Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal Hwnd As Long, lpdwprocessid As Long) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Private Sub Command1_Click()

  'explorer
  
  Dim Handle As Long: Handle = FindWindow("Progman", "Program Manager")
  Dim idProc As Long: Call GetWindowThreadProcessId(Handle, idProc)
  
  MsgBox idProc

End Sub

Option Explicit

Private Type PROCESSENTRY32
    dwSize As Long
    cntUsage As Long
    th32ProcessID As Long
    th32DefaultHeapID As Long
    th32ModuleID As Long
    cntThreads As Long
    th32ParentProcessID As Long
    pcPriClassBase As Long
    dwFlags As Long
    szExeFile As String * 260
End Type

Private Declare Function CreateToolhelp32Snapshot Lib "Kernel32" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
Private Declare Function Process32First Lib "Kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Function Process32Next Lib "Kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Sub CloseHandle Lib "Kernel32" (ByVal hPass As Long)

Private Sub Form_Load()
  MsgBox el_pid("csrss.exe")
  End
End Sub

Function el_pid(proceso As String) As Long
    
    Dim hSnapShot As Long, uProcess As PROCESSENTRY32
    hSnapShot = CreateToolhelp32Snapshot(&H1 Or &H2 Or &H4 Or &H8, 0&)
    uProcess.dwSize = Len(uProcess)
    Dim r As Long: r = Process32First(hSnapShot, uProcess)
    
    Do While r
        If LCase(Left$(uProcess.szExeFile, IIf(InStr(1, uProcess.szExeFile, Chr$(0)) > 0, InStr(1, uProcess.szExeFile, Chr$(0)) - 1, 0))) = LCase(proceso) Then
          el_pid = uProcess.th32ProcessID
          Exit Do
        End If
        r = Process32Next(hSnapShot, uProcess)
    Loop
    CloseHandle hSnapShot

End Function

Option Explicit

Private Type PROCESSENTRY32
    dwSize As Long
    cntUsage As Long
    th32ProcessID As Long
    th32DefaultHeapID As Long
    th32ModuleID As Long
    cntThreads As Long
    th32ParentProcessID As Long
    pcPriClassBase As Long
    dwFlags As Long
    szExeFile As String * 260
End Type

Private Declare Function CreateToolhelp32Snapshot Lib "Kernel32" (ByVal lFlags As Long, ByVal lProcessID As Long) As Long
Private Declare Function Process32First Lib "Kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Function Process32Next Lib "Kernel32" (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long
Private Declare Sub CloseHandle Lib "Kernel32" (ByVal hPass As Long)

Private Sub Form_Load()
  MsgBox el_pid_str("svchost.exe")
  End
End Sub

Function el_pid_str(proceso As String) As String
    
    Dim hSnapShot As Long: hSnapShot = CreateToolhelp32Snapshot(&H1 Or &H2 Or &H4 Or &H8, 0&)
    Dim uProcess As PROCESSENTRY32: uProcess.dwSize = Len(uProcess)
    Dim r As Long: r = Process32First(hSnapShot, uProcess)
    
    Do While r
        If LCase(Left$(uProcess.szExeFile, IIf(InStr(1, uProcess.szExeFile, Chr$(0)) > 0, InStr(1, uProcess.szExeFile, Chr$(0)) - 1, 0))) = LCase(proceso) Then
          el_pid_str = el_pid_str & uProcess.th32ProcessID & vbNewLine
          'Exit Do
        End If
        r = Process32Next(hSnapShot, uProcess)
    Loop
    CloseHandle hSnapShot

End Function