System.Windows.Forms.XplatUIX11.SetCursorPos C# (CSharp) Method

		internal override void SetCursorPos(IntPtr handle, int x, int y) {
			if (handle == IntPtr.Zero) {
				lock (XlibLock) {
					IntPtr root, child;
					int root_x, root_y, child_x, child_y, mask;

					/* we need to do a
					 * QueryPointer before warping
					 * because if the warp is on
					 * the RootWindow, the x/y are
					 * relative to the current
					 * mouse position
					 */
					QueryPointer (DisplayHandle, RootWindow,
						      out root,
						      out child,
						      out root_x, out root_y,
						      out child_x, out child_y,
						      out mask);

					XWarpPointer(DisplayHandle, IntPtr.Zero, IntPtr.Zero, 0, 0, 0, 0, x - root_x, y - root_y);

					XFlush (DisplayHandle);

					/* then we need to a
					 * QueryPointer after warping
					 * to manually generate a
					 * motion event for the window
					 * we move into.
					 */
					QueryPointer (DisplayHandle, RootWindow,
						      out root,
						      out child,
						      out root_x, out root_y,
						      out child_x, out child_y,
						      out mask);

					Hwnd child_hwnd = Hwnd.ObjectFromHandle(child);
					if (child_hwnd == null) {
						return;
					}

					XEvent xevent = new XEvent ();

					xevent.type = XEventName.MotionNotify;
					xevent.MotionEvent.display = DisplayHandle;
					xevent.MotionEvent.window = child_hwnd.client_window;
					xevent.MotionEvent.root = RootWindow;
					xevent.MotionEvent.x = child_x;
					xevent.MotionEvent.y = child_y;
					xevent.MotionEvent.x_root = root_x;
					xevent.MotionEvent.y_root = root_y;
					xevent.MotionEvent.state = mask;

					child_hwnd.Queue.EnqueueLocked (xevent);
				}
			} else {
				Hwnd	hwnd;

				hwnd = Hwnd.ObjectFromHandle(handle);
				lock (XlibLock) {
					XWarpPointer(DisplayHandle, IntPtr.Zero, hwnd.client_window, 0, 0, 0, 0, x, y);
				}
			}
		}