Shading.GetBBox Method

Return Value

Type: Rect
a rectangle giving the left, bottom, right, and top coordinates, respectively, of the shading's bounding box. The coordinates are interpreted in the shading's target coordinate space. If present, this bounding box is applied as a temporary clipping boundary when the shading is painted, in addition to the current clipping path and any other clipping boundaries in effect at that time.

Use HasBBox() method to determine whether the shading has a background color.