troubleshooting Question

SendMessage WM_CLOSE to another process

Avatar of raheelasadkhan
raheelasadkhanFlag for Pakistan asked on
C#
3 Comments1 Solution13398 ViewsLast Modified:
I'm trying to use the SendMessage function to send the WM_CLOSE message to an external process. Even though the call returns 0, nothing happens and the target window does not close.

public const int WM_CLOSE = 0x10;
[DllImport("user32", EntryPoint="SendMessageA")]
public static extern Int32 SendMessage(Int32 hwnd, Int32 wMsg, Int32 wParam, Int32 lParam);

int result = WindowsEnumerator.SendMessage (hWnd, WM_CLOSE, 0, 0);

Is there something else I need to do to make the call valid for an external process?
ASKER CERTIFIED SOLUTION
zstafa

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