C# Signature:
[DllImport("user32.dll", SetLastError=true)]
static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
[DllImport("user32.dll")]
static extern IntPtr GetWindowThreadProcessId(IntPtr hWnd, IntPtr ProcessId);
VB.Net Signature:
<DllImport("user32.dll", SetLastError:=True)> _
Private Shared Function GetWindowThreadProcessId(ByVal hwnd As IntPtr, _
ByRef lpdwProcessId As Integer) As Integer
End Function
User-Defined Types:
None.
Notes:
None.
Tips & Tricks:
We can use this API to get ProcessID from Window's Title by combining this function with EnumWindows.
Sample Code (VB):
If objAcc Is Nothing Then
objAcc = New Application
Dim lngPid As Integer
Dim lngAccessHwnd As IntPtr = New IntPtr(objAcc.hWndAccessApp)
GetWindowThreadProcessId(lngAccessHwnd, lngPid)
End If
Sample Code (C#):
IntPtr pID = GetWindowThreadProcessId(GetForegroundWindow(), IntPtr.Zero);
GetWindowThreadProcessId returns the id of the thread that created the target window. To get the process id of a window, use the first c# signature above, and:
Sample Code (C#):
uint processID= 0;
uint threadID=GetWindowThreadProcessId(hWnd, out processID);
Alternative Managed API:
Do you know one? Please contribute it!
Sneha
