Strokes a path with a shading pattern.
void StrokePathWithShading(PathView path, in StrokeStyle style, in DisplayShading shading)
The path in user space under the current transform, exactly as for StrokePath(PathView, in StrokeStyle, in DisplayColor).
The line parameters, as for StrokePath(PathView, in StrokeStyle, in DisplayColor).
The pattern's shading, in pattern space (Matrix), with its Background.
ISO 32000-2 §8.7.4.1 and §8.5.3.2: the area the stroke covers is painted as FillPathWithShading(PathView, FillRule, in DisplayShading) paints a fill's.