QuickTime Kit Programming Guide - filibeto.org

C H A P T E R 4
Adding New Capabilities to the QTKitPlayer Application
13. After the @end directive, you add this chunk of code to intercept some actions for the movie
controller and to update the current time display in the drawer. Note that the refCon parameter
is a document id:
pascal Boolean MyActionFilter (MovieController mc, short action, void* params,
long refCon)
{
MovieDocument *doc = (MovieDocument *)refCon;
}
switch (action)
{
// handle idle events
case mcActionIdle:
// update the current time display in the info drawer
if ([[doc drawer] state] != NSDrawerClosedState)
[doc setTimeDisplay];
break;
}
return false;
This wraps up the additions to the code you need to make in your MovieDocument implementation
file. You’re now ready to build and compile your Xcode project.
The Completed Project
If you’ve followed the steps outlined in this chapter, you’ll have successfully extended the QTKitPlayer
application with a Cocoa drawer you can toggle open and closed. The drawer will display and update
the time of any QuickTime movie you want to play.
You can control movie playback as you have before, with QTKitPlayer functionality still in place for
movie control, as shown in Figure 4-13.
Figure 4-13 Open drawer with movie Show Controller selected
The Completed Project 77
2005-11-09 | © 2004, 2005 Apple Computer, Inc. All Rights Reserved.