Give a windows handle (Native), how to close the windows using C#?

问题

Given a handle of a window, how can I close the window by using the window handle?

回答1:

The easiest way is to use PInvoke and do a SendMessage with WM_CLOSE.

[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

private const UInt32 WM_CLOSE          = 0x0010;

void CloseWindow(IntPtr hwnd) {
  SendMessage(hwnd, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
}

回答2:

Not sure if there is another way but you could PInvoke the following:

                // close the window using API        
            SendMessage(iHandle, WM_SYSCOMMAND, SC_CLOSE, 0);

回答3:

Call CloseWindow via P/Invoke:

http://www.pinvoke.net/default.aspx/user32.closewindow

Or DestroyWindow

http://www.pinvoke.net/default.aspx/user32/DestroyWindow.html

来源：https://stackoverflow.com/questions/9519206/give-a-windows-handle-native-how-to-close-the-windows-using-c