## Presentation Device Driver Reference for OS/2

[prev][next][parent][TOC]

### GreGetRegionRects Parameter - prclBoundRect

prclBoundRect (PRECTL) - input Pointer to bounding rectangle.

RECTL structure:

xLeft Minimum x-coordinate of window
yBottom Minimum y-coordinate
xRight Maximum x-coordinate of window
yTop Maximum y-coordinate

Only rectangles intersecting this bounding rectangle are returned. If this pointer is NULL, all rectangles in the region are enumerated. If this pointer is not NULL, only rectangles that intersect the bounding rectangle are returned. Each of these rectangles is the intersection of the bounding rectangle with a rectangle in the region.