Inside Macintosh: QuickDraw GX Environment and Utilities /

Chapter 3 - Errors, Warnings, and Notices / Errors, Warnings, and Notices Reference

Application-Defined Functions

QuickDraw GX supports application-defined error, warning, and notice handlers. These handlers are installed by the use of the GXSetUserGraphicsError, GXSetUserGraphicsWarning, and GXSetUserGraphicsNotice functions.