The. net call to refresh the tray area code in the win11 system does not take effect when clearing residual icons

The relevant code for refreshing the tray area is called in the win11 system code, and it does not take effect occasionally

The residual icon still exists, it can disappear when the mouse hovers over it

The code is as follows:

const uint WM_MOUSEMOVE = 0x0200;
                bool isSuccess = GetClientRect(windowHandle, out Rect rect);
                LogsHelper.Instance.DebugWrite($"isSuccess:{isSuccess} GetClientRect right:{rect.right}  bottom:{rect.bottom}");
                if (rect.right == 0)
                {
                    rect.right = 320;
                }
                if (rect.bottom == 0)
                {
                    rect.bottom = 320;
                    LogsHelper.Instance.DebugWrite("rect.bottom = 320");
                }
                for (int x = 0; x < rect.right; x += 5) 
                {
                    for (int y = 0; y < rect.bottom; y += 5) 
                    {
                        SendMessage(windowHandle, WM_MOUSEMOVE, 0, (y << 16) + x); 
                    }
                }