Register or unregister your add-on to be notified of application and project events.

    GSErrCode  ACAPI_Notify_CatchProjectEvent (
        GSFlags                         eventTypes,
        APIProjectEventHandlerProc*     handlerProc



[in] A combination of different API_NotifyEventID values, specifying the types of project events you are interested in.
[in] The callback procedure to call when notifications are sent out on different project events. Specifying nullptr here means you don’t need the notifications any more.


Return Values

The requested operation finished successfully.

For other common API errors see the API Errors document.



This function enables the API tool add-on catch events happening to the project. Each time when such an event occurs the server application calls the supplied handlerProc of your those add-ons which have been registered for this event previously.

If you do not need to catch the project events any longer, please remember to unregister by calling ACAPI_Notify_CatchProjectEvent for the required element type with nullptr in the handlerProc parameter.



// -----------------------------------------------------------------------------
// Project event handler function
// -----------------------------------------------------------------------------
static GSErrCode __ACENV_CALL    NotificationHandler (API_NotifyEventID notifID, Int32 param)
    char    msgStr[256];

    switch (notifID) {
        case APINotify_New:                CHCopyC ("APINotify_New", msgStr);             break;
        case APINotify_NewAndReset:        CHCopyC ("APINotify_NewAndReset", msgStr);     break;
        case APINotify_Open:               CHCopyC ("APINotify_Open", msgStr);            break;
        case APINotify_PreSave:            CHCopyC ("APINotify_PreSave", msgStr);         break;
        case APINotify_Save:               CHCopyC ("APINotify_Save", msgStr);            break;
        case APINotify_Close:              CHCopyC ("APINotify_Close", msgStr);           break;
        case APINotify_Quit:               CHCopyC ("APINotify_Quit", msgStr);            break;

        case APINotify_SendChanges:        CHCopyC ("APINotify_SendChanges", msgStr);     break;
        case APINotify_ReceiveChanges:     CHCopyC ("APINotify_ReceiveChanges", msgStr);  break;

        case APINotify_ChangeProjectDB:    CHCopyC ("APINotify_ChangeProjectDB", msgStr); break;
        case APINotify_ChangeWindow:       CHCopyC ("APINotify_ChangeWindow", msgStr);    break;
        case APINotify_ChangeFloor:        CHCopyC ("APINotify_ChangeFloor", msgStr);     break;
        case APINotify_ChangeLibrary:      CHCopyC ("APINotify_ChangeLibrary", msgStr);   break;

    ACAPI_WriteReport (msgStr, false);

    return NoError;
}   // NotificationHandler

// -----------------------------------------------------------------------------
// Called after the Add-On has been loaded into memory
// -----------------------------------------------------------------------------
GSErrCode    __ACENV_CALL    Initialize (void)

    // catch changes in project events
    GSErrCode err = ACAPI_Notify_CatchProjectEvent (API_AllProjectNotificationMask, NotificationHandler);

    return err;
}   // Initialize



Version: API 4.1 or later
Header: ACAPinc.h


See Also

API_NotifyEventID, APIProjectEventHandlerProc,
Notification Manager, API Functions