Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/photon/lib_ref/pt/ptsurfaceextent.html on line 1
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/photon/lib_ref/pt/ptsurfaceextent.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/photon/lib_ref/pt/ptsurfaceextent.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/photon/lib_ref/pt/ptsurfaceextent.html on line 8
Calculate the extent of a control surface
PhRect_t *PtSurfaceExtent(
PtWidget_t *widget,
PtSurface_t const *surface,
PhRect_t *extent );
PhRect_t *PtSurfaceExtentById(
PtWidget_t *widget,
unsigned char surface_id,
PhRect_t *extent );
ph
These functions calculate the extent of a control surface
belonging to a given widget.
They differ in how they identify the control surface:
- PtSurfaceExtent()
- Uses the surface argument, which points to a
PtSurface_t structure that describes the control surface.
This pointer must not be NULL.
- PtSurfaceExtentById()
- Searches the control surfaces belonging to the widget for the one
with an ID of surface_id.
The extent argument points to a
PhRect_t
structure in which the result is stored.
The same pointer as extent.
PtSurfaceExtentById() returns NULL if it
can't find the control surface with the given ID.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PhRect_t,
PtCalcSurface(),
PtCalcSurfaceByAction(),
PtCalcSurfaceById(),
PtSurfaceCalcBoundingBox(),
PtSurfaceCalcBoundingBoxById(),
PtSurfaceRect(),
PtSurfaceRectById()
Control Surfaces
chapter of the Photon Programmer's Guide
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/photon/lib_ref/pt/ptsurfaceextent.html on line 126
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/photon/lib_ref/pt/ptsurfaceextent.html on line 126