private static void AffectWindowStyle(
DependencyObject obj,
DependencyPropertyChangedEventArgs args,
ApiWindowStyles styles)
{
var window = obj as Window;
if (window == null)
{
return;
}
ResetWindowStyle(window, styles, (bool)args.NewValue);
}
private static void ResetWindowStyle([NotNull] Window window, ApiWindowStyles styles, bool set)
{
const int Flags = SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOREPOSITION
| SWP_NOSIZE | SWP_NOZORDER;
var wih = new WindowInteropHelper(window);
var style = (ApiWindowStyles)GetWindowLong(wih.EnsureHandle(), GWL_STYLE);
if (set)
{
style |= styles;
}
else
{
style &= ~styles;
}
SetWindowLong(wih.Handle, GWL_STYLE, (IntPtr)style);
SetWindowPos(wih.Handle, IntPtr.Zero, 0, 0, 0, 0, Flags);
}
