This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

PhRectUnion()

Determine a bounding box for two rectangles

Synopsis:

int PhRectUnion( PhRect_t *rect1, 
                 PhRect_t const *rect2 );

Library:

ph

Description:

This function changes the rectangle pointed to by rect1 to a rectangle that encompasses rect2 using rect1 as a starting point. The result is a bounding box for the two original rectangles.

Returns:

0: The resulting rectangle is inverted (only possible if inverted rectangles are provided as parameters i.e. ul > lr ).
1: The resulting rectangle is a regular rectangle (i.e. ul < lr).

Classification:

Photon