private static void WindowShown(IntPtr hwnd)
{
if (!HwndHelper.HasStyleFlag(hwnd, NativeHelper.WS_VISIBLE))
{
return;
}
var oldTcs = nextWindowShown;
nextWindowShown = new TaskCompletionSource <int>();
oldTcs.SetResult(0);
}
protected static HwndSource GetSafeHwndSource(Object owner)
{
HwndSource source = null;
if (owner is DependencyObject)
{
source = HwndSource.FromDependencyObject(owner as DependencyObject) as HwndSource;
}
else if (owner is Visual)
{
source = HwndSource.FromVisual(owner as Visual) as HwndSource;
}
else if (owner is IntPtr)
{
source = HwndSource.FromHwnd((IntPtr)owner) as HwndSource;
}
if (source != null)
{
return(source);
}
return(HwndSource.FromHwnd(HwndHelper.GetForegroundWindow()) as HwndSource);
}
