// why is this a instance method ? and not static ?
public void ReleaseHrgn(IntPtr regionHandle)
{
if (regionHandle == IntPtr.Zero)
{
throw new ArgumentNullException("regionHandle");
}
Status status = Status.Ok;
if (GDIPlus.RunningOnUnix())
{
// for libgdiplus HRGN == GpRegion*
status = GDIPlus.GdipDeleteRegion(regionHandle);
}
else
{
// ... but on Windows HRGN are (old) GDI objects
if (!GDIPlus.DeleteObject(regionHandle))
{
status = Status.InvalidParameter;
}
}
GDIPlus.CheckStatus(status);
}