Detranslate a rectangle (subtract offset)
PhRect_t *PtDeTranslateRect(
PhRect_t *rect,
PhPoint_t const *delta );
This convenience function subtracts delta->x from rect->ul.x and rect->lr.x, and subtracts delta->y from rect->ul.y and rect->lr.y. You'll find this function handy for translating events, extents, or canvases so they become relative to various points.
A pointer to the rect argument.
Photon
| Safety: | |
|---|---|
| Interrupt handler | No |
| Signal handler | No |
| Thread | No |