ThemeEraseUPP

The Appearance Manager defines the type for an application-defined background drawing function as follows:



 
typedef pascal (void, ThemeEraseProcPtr) (

                     const Rect *bounds,

                     UInt32 eraseData,

                     SInt16 depth,

                     Boolean isColorDev);

The Appearance Manager defines the data type ThemeEraseUPP to identify the universal procedure pointer for an application-defined background drawing function:



 
typedef ThemeEraseProcPtr ThemeEraseUPP;

You typically use the NewThemeEraseProc macro like this:



 
ThemeEraseUPP myThemeEraseUPP;

myThemeEraseUPP = NewThemeEraseProc(MyThemeEraseProc);

You typically use the CallThemeEraseProc macro like this:



 
CallThemeEraseProc(myThemeEraseUPP, bounds, eraseData, depth, isColorDev);

To implement your own background drawing function, see MyThemeEraseProc . The ThemeEraseProcPtr type is available with Appearance Manager 1.1 and later.