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Determine the widget that initiated a link callback
#include <Ap.h>
PtWidget_t *ApWidget( PtCallbackInfo_t *cbinfo );
- cbinfo
- A pointer to the
PtCallbackInfo_t
structure (see the Photon Widget Reference) that was passed
to the callback.
Ap
ApWidget() is used within module setup functions to
determine the widget that initiated the link callback.
A pointer to the initiating widget.
mysetup_function( ..., PtCallbackInfo_t cbinfo ) {
if (ApName(ApWidget(cbinfo)) == ABN_widget1) {
/* setup based on widget1 */
} else {
if (ApName(ApWidget(cbinfo)) == ABN_widget2) {
/* setup based on widget2 */
} else {
/* common setup */
}
}
return( Pt_CONTINUE );
}
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
For another method of determining the widget that initiated a link
callback, see
the ApInfo_t structure.
PtCallbackInfo_t
in the Photon Widget Reference
“Module setup functions”
in the Working With Code chapter of the Photon Programmer's Guide
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