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int HAMLIB_API rig_set_vfo_callback ( RIG rig,
vfo_cb_t  cb,
rig_ptr_t  arg 

set the callback for vfo events

rig The rig handle
cb The callback to install
arg A Pointer to some private data to pass later on to the callback
Install a callback for vfo events, to be called when in transceive mode.

RIG_OK if the operation has been sucessful, otherwise a negative value if an error occured (in which case, cause is set appropriately).
See also:

Definition at line 441 of file event.c.

References callbacks, RIG_EINVAL, RIG_OK, rig_callbacks::vfo_arg, and rig_callbacks::vfo_event.

      if (CHECK_RIG_ARG(rig))
            return -RIG_EINVAL;

      rig->callbacks.vfo_event = cb;
      rig->callbacks.vfo_arg = arg;

      return RIG_OK;

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