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Miscellaneous Changes and Enhancements

In this section:

Change For All Video Output Components
QuickTime VR
New QuickTime Menu in Windows
New Movie Errors API

Change For All Video Output Components

In QuickTime 6 and later, all video output components which support the SetEchoPort call should call QTVideoOutputBaseSetEchoPort on the base video output component to inform it about the change in echo port.

ComponentResult QTVideoOutputBaseSetEchoPort (

                                            QTVideoOutputComponent vo,

                                            CGrafPtr echoPort);

QuickTime VR

Two performance enhancements to QuickTime VR:

• Cubic previews are generated correctly in Export to Fast Start QTVR.

• Preview now comes in faster for cubics.

New QuickTime Menu in Windows

There is a new QuickTime menu in the Windows system tray. The menu includes the following items in QuickTime 6:

• About QuickTime -> Opens the About QuickTime control panel

• QuickTime Website -> Opens the Apple QuickTime website

• QuickTime Preferences -> Opens Browser Plug-in control panel

• QuickTime Info -> Launches QTInfo

• Open QuickTime Player -> Launches QuickTime Player

• Open Picture Viewer -> Opens picture viewer

• Check for QuickTime Updates -> Opens Browser Plug-in control panel

• Favorites -> Lists a hierarchical menu with your favorites

• Open Recent -> Opens recently opened items

• Exit QuickTime Task -> Quits qttask

There is also a new item in the control panel: a QuickTime system tray icon. If unchecked, the tray icon will never appear. If you choose to exit from the menu, it will exit, and when you reboot your computer, it will reappear.

New Movie Errors API

New Movie Errors API

Adds orthogonal errors to a list of errors.

   QTAddMovieError(
   Movie addTo,
   Component adder,
   long errorCode,
   QTErrorReplacementPtr stringReplacements);

Parameters

addTo

The movie to add error to.

adder

The component which is adding the error.

errorCode

The error code being added.

stringReplacements

The list of strings to substitute (in order) for "^1", "^2", etc.

Discussion

This routine is used to add orthogonal errors to a list of errors that will later be reported (at the end of an import or playback, for example). Errors are stored in 'qter' resources within the component.

The 'qter' resource format is defined as follows:

type 'qter' {

    longint = $$Countof(ErrorSpec);

    wide array ErrorSpec {

    longint; // error code used to find this error

    longint // error type

        kQuickTimeErrorNotice = 1,

        kQuickTimeErrorWarning = 2,

        kQuickTimeErrorError = 3;

// In the following strings, ^FILENAME, ^APPNAME, ^0, ^1, etc will be

// replaced as appropriate.

    pstring; // main error string

    pstring; // explanation error string

    pstring; // technical string (not displayed

             // to user except in debug cases)

    align long;

    };

};

Introduced in QuickTime 6.

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