paRegion (PRECT) - input

Pointer to the region definition.

This is a pointer to an array of rectangle structures, which defines the region. Each rectangle is described by a RECTL structure:

xLeft

Minimum x-coordinate of rectangle
yBottom
Minimum y-coordinate
xRight
Maximum x-coordinate of rectangle
yTop
Maximum y-coordinate
For each rectangle, xRight must be equal to or greater than xLeft. yTop must be equal to or greater than yBottom. The bottom and left boundaries of each rectangle are part of the interior of the region; the top and right boundaries are not.