public static void FillGeometry(this ID2D1DeviceContext context, ID2D1Geometry geometry, ID2D1Brush brush, ID2D1Brush opacityBrush = null)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (geometry == null)
{
throw new ArgumentNullException(nameof(geometry));
}
if (brush == null)
{
throw new ArgumentNullException(nameof(brush));
}
context.FillGeometry(geometry, brush, opacityBrush);
}