public static void FillRoundedRectangle(this ID2D1DeviceContext context, D2D1_ROUNDED_RECT roundedRect, ID2D1Brush brush)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (brush == null)
{
throw new ArgumentNullException(nameof(brush));
}
context.FillRoundedRectangle(ref roundedRect, brush);
}