OCXREGISTERPROPEDIT (install property edit callback)

OCXREGISTERPROPCHANGE (install property change callback)

OCXREGISTEREVENTPROC (install event processing callback)

OCXUNREGISTERPROPEDIT (un-install property edit callback)

OCXUNREGISTERPROPCHANGE (un-install prop change callback)

OCXUNREGISTEREVENTPROC (un-install event process callback)

OCXGETPARAMCOUNT (return number of parameters for current event)

OCXGETPARAM (return current event parameter string)

OCXSETPARAM (set current event parameter string)

OCXLOADIMAGE (return an image object)