Add RemoveCallback3 to match callback function and supply user function to determine if this callback should be deleted. Allows checking inside the userdata structure instead of just the address - needed for motor uninterest.

r1986 | dcl | 2007-05-25 16:15:15 +1000 (Fri, 25 May 2007) | 2 lines

interface.h

@@ -103,6 +103,7 @@
                         void *pUserData, KillFuncIT pKill);
    int RemoveCallback(pICallBack pInterface, long iID);
    int RemoveCallback2(pICallBack pInterface, void *pUserData);
+   int RemoveCallback3(pICallBack self, SICSCallBack pFunc, int (*func)(const void* context, const void* pUserData), void *context);
 
    int CallbackScript(SConnection *pCon, SicsInterp *pSics, void *pData,
         int argc, char *argv[]);