PtRectUnion()

Determine a bounding box for two rectangles

Synopsis:

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

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