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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/ptcontainerhit.html on line 1
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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/ptcontainerhit.html on line 8
Find the nth widget in an area
PtWidget_t *PtContainerHit( PtWidget_t *container,
unsigned n,
PhRect_t const *rect );
ph
This function returns a pointer to the
nth widget within the specified
container that intersects with the rectangle provided in the
PhRect_t
structure pointed to by rect.
The coordinates of the rectangle are relative to the given container's canvas.
If no widget intersects with rect, or
if there are fewer than n
intersections, the function returns NULL.
PtWidget_t *target_widget, *my_pane;
// In my_pane's RAW callback:
my_raw_cb( PtWidget_t *container, void *data,
PtCallbackInfo_t *cbinfo )
{
PhRect_t *rect;
PtWidget_t *container;
PtWidget_t *target_widget;
// …
rect = PhGetRects( cbinfo->event );
container = PtFindContainer( widget );
target_widget = PtContainerHit( container, 1, rect );
if (target_widget)
PtDestroyWidget( target_widget );
// …
}
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PhGetRects(),
PhRect_t,
PtContainerBox()
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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/ptcontainerhit.html on line 116