Inside Macintosh: Programmer's Guide to MacApp / Part 1 - MacApp Theory and Architecture

Chapter 4 - Launching and Terminating an Application

Initializing Additional MacApp Units

If your application uses any MacApp units that are not initialized by DoInitUMacApp, such as MacApp's Drag Manager support or PowerTalk mailer support, you initialize them in your main routine after the call to InitUMacApp, as shown here:

InitUMacApp(4); // Initialize MacApp with 4 calls to MoreMasters.
#if qDrag
   if (HasDragManager())
      InitUDragManager();
#endif
#if qPowerTalk
   if (HasAOCEToolBox())
      InitUMailer();
#endif

The HasDragManager routine is defined in the UDragDrop unit and the HasAOCEToolBox routine is defined in the UMailable unit. These global routines check whether the required feature is available in the current machine configuration.

For information on how to build your application with Drag Manager or PowerTalk support, see Appendix A.