Draws a complete run or part of one.
- iOS 3.2+
- macOS 10.5+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
- Core Text
The run to draw.
The context into which to draw the run.
The portion of the run to draw. If the length of the range is set to
0, then the draw operation continues from the start index of the range to the end of the run.
This is a convenience call, because the run could be drawn by accessing the glyphs. This call can leave the graphics context in any state and does not flush the context after the draw operation.