Text Functions
You can use the
MyTextProc
function described in this section to pass a handle to a specified sample containing formatted text, along with the movie in which the text is being displayed, a pointer to a flag variable, and your reference constant. You specify the desired operations on the text and return an indication of whether you want to display the text in the
displayFlag
parameter.
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.
© 1999 Apple Computer, Inc.Previous | Overview | Contents | Next
