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Type for defining an input callback function
typedef int PtInputCallbackProcF_t( void *, int,
void *,
size_t);
typedef PtInputCallbackProcF_t *
PtInputCallbackProc_t;
These data types define pointers to input callback functions.
The PtInputCallbackProcF_t type is the function type that the
PtInputCallbackProc_t type points to. This allows you to do
something like this:
PtInputCallbackProcF_t my_input_callback;
int my_input_callback( void *, int, void *, size_t ) {
...
}
The compiler should detect any inconsistencies between the
two declarations of my_input_callback() and give you an error
(which is
better than a “pointer mismatch” warning on the call to
PtAppAddInput()).
Photon
PtAppAddInput()
Interprocess Communication
chapter of the Photon Programmer's Guide
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