private static IntPtr FindTopLevelWindow(IntPtr hWnd)
{
while (hWnd != IntPtr.Zero && ScreenLocation.IsChildWindow(hWnd))
{
hWnd = NativeMethods.GetParent(hWnd);
}
return(hWnd);
}
public static HwndSource FindTopLevelHwndSource(UIElement element)
{
HwndSource hwndSource = (HwndSource)PresentationSource.FromVisual((Visual)element);
if (hwndSource != null && ScreenLocation.IsChildWindow(hwndSource.Handle))
{
hwndSource = HwndSource.FromHwnd(ScreenLocation.FindTopLevelWindow(hwndSource.Handle));
}
return(hwndSource);
}