Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Application-Defined Functions / Text Functions

MyTextProc

Your text function should have the following form:

pascal OSErr MyTextProc (Handle theText, Movie theMovie, 
                        short *displayFlag, long refcon);

theText

Contains a handle to the formatted text.

theMovie

Specifies the movie for this operation.

displayFlag

Contains a pointer to one of the following flags, which specify how you want the text media handler to proceed when your function returns. The three possible return values for the flag are:

txtProcDefaultDisplay

Indicates that the media should follow the instructions of its own displayFlag constants.

txtProcDontDisplay

Tells the media not to display the text.

txtProcDoDisplay

Instructs the media to display the text regardless of the media's own displayFlag constants.

refcon

Contains the reference constant to your text function.