public void Update(Rectangle destination, byte opacity, bool visible, bool onlyClientArea)
{
DwmThumbnailProperties ptnProperties = new DwmThumbnailProperties();
ptnProperties.dwFlags = DwmThumbnailFlags.SourceClientAreaOnly | DwmThumbnailFlags.Visible | DwmThumbnailFlags.Opacity | DwmThumbnailFlags.RectDestination;
ptnProperties.rcDestination = new RECT(destination);
ptnProperties.opacity = opacity;
ptnProperties.fVisible = visible;
ptnProperties.fSourceClientAreaOnly = onlyClientArea;
if (Win32API.DwmUpdateThumbnailProperties(this, ref ptnProperties) != 0)
{
throw new DwmCompositionException("DWMThumbnailUpdateFailure");
}
}
public static extern int DwmUpdateThumbnailProperties(Thumbnail hThumbnailId, ref DwmThumbnailProperties ptnProperties);
public static extern int DwmUpdateThumbnailProperties(Thumbnail hThumbnailId, ref DwmThumbnailProperties ptnProperties);