This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

devi_register_pulse()

Associate a pulse code with a function

Synopsis:

int devi_register_pulse( input_module_t *module, 
                        int code, 
                        int (*func)(message_context_t *, 
                                               int, 
                                               unsigned, 
                                               void *));

Description:

This function associates a pulse code with a function. When the input runtime system receives a pulse with the specified code, it will call the associated function.

The arguments are:

module

Name of module data block.

code

Can be 0 or MSG_FLAG_ALLOC_PULSE, in which case a pulse code will be allocated for the caller.

func

The name of the function to associate. If it's NULL, then the module's pulse() callback is used.

Returns:

Valid pulse code used to associate the function, or -1 on error.

Classification:

QNX