public static bool ExtendGlass(Window win, int left, int right, int top, int bottom)
{
try
{
if (!DwmIsCompositionEnabled())
{
return(false);
}
// Obtain the window handle for WPF application
WindowInteropHelper windowInterop = new WindowInteropHelper(win);
IntPtr windowHandle = windowInterop.Handle;
HwndSource mainWindowSrc = HwndSource.FromHwnd(windowHandle);
mainWindowSrc.CompositionTarget.BackgroundColor = Colors.Transparent;
VistaGlassHelper.Margins margins =
VistaGlassHelper.GetDpiAdjustedMargins(windowHandle, left, right, top, bottom);
int returnVal = VistaGlassHelper.DwmExtendFrameIntoClientArea(mainWindowSrc.Handle, ref margins);
if (returnVal < 0)
{
throw new NotSupportedException("Operation failed.");
}
return(true);
}
catch
{
return(false);
}
}