Fills a rectangle with the current fill color using the specified blend mode.
- iOS 2.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The rectangle defining the area in which to draw.
The blend mode to use during drawing.
This function draws the rectangle in the current graphics context. If the current graphics context is
nil, this function does nothing.
This function may be called from any thread of your app.