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Add a filter callback to an application's callback list
void PtAddFilterCallback(
unsigned long event_mask,
int (*func)(void *,PtCallbackInfo_t *),
void *data);
- event_mask
- The event type that causes the application to invoke the
filter callback func.
- func
- A pointer to the event handler function you want to add.
The function takes this form: int (*func)(void *,PtCallbackInfo_t *).
- data
- A pointer to data that you want to pass as the first argument
to the function.
ph
This function adds an event handler to the application's
Pt_CB_FILTER callback list. The application invokes this handler whenever
an event type that matches one of the bits in event_mask intersects
with the application .
For more information, see the
Manipulating Resources
in Application Code chapter of the Photon Programmer's Guide.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PtAppGetResources(),
PtAppGetResource(),
PtAppRemoveCallback(),
PtAppRemoveFilterCallback(),
PtAppSetResource(),
PtAppSetResources(),
PtSetArg().
“Event
handlers” in the Managing Widgets in Application Code chapter of the
Photon Programmer's Guide
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