# Synopsis

PDX_MSGT mda_ClearCallBack(long option, int model, int event, MDA_CALL_BACK *func)

# Purpose

Clears a callback function for an event.

# Description

Clears the specified callback function associated with an event. See mda_SetCallBack for further information on how to establish a callback.

# Input

## option

Options (not used)

## model

Model to clear callback in

## event

See mda_SetCallBack

## func

Function to be cleared.

# Return

MDA error code