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

		internal override void SetCursor(IntPtr handle, IntPtr cursor) {
			Hwnd	hwnd;

			if (OverrideCursorHandle == IntPtr.Zero) {
				if ((LastCursorWindow == handle) && (LastCursorHandle == cursor)) {
					return;
				}

				LastCursorHandle = cursor;
				LastCursorWindow = handle;

				hwnd = Hwnd.ObjectFromHandle(handle);
				lock (XlibLock) {
					if (cursor != IntPtr.Zero) {
						XDefineCursor(DisplayHandle, hwnd.whole_window, cursor);
					} else {
						XUndefineCursor(DisplayHandle, hwnd.whole_window);
					}
					XFlush(DisplayHandle);
				}
				return;
			}

			hwnd = Hwnd.ObjectFromHandle(handle);
			lock (XlibLock) {
				XDefineCursor(DisplayHandle, hwnd.whole_window, OverrideCursorHandle);
			}
		}