Legacy Document

Inside Macintosh: Imaging With QuickDraw /

Chapter 4 - Color QuickDraw / Color QuickDraw Reference

Data Structures /

CQDProcs

You need to use the CQDProcs record only if you customize one or more of QuickDraw's standard low-level drawing routines, which are described in the chapter "QuickDraw Drawing." You can use the SetStdCProcs procedure, described on page 4-87, to create a CQDProcs record.

CQDProcsPtr = ^CQDProcs
CQDProcs    = 
RECORD
   textProc:      Ptr;  {text drawing}
   lineProc:      Ptr;  {line drawing}
   rectProc:      Ptr;  {rectangle drawing}
   rRectProc:     Ptr;  {roundRect drawing}
   ovalProc:      Ptr;  {oval drawing}
   arcProc:       Ptr;  {arc/wedge drawing}
   polyProc:      Ptr;  {polygon drawing}
   rgnProc:       Ptr;  {region drawing}
   bitsProc:      Ptr;  {bit transfer}
   commentProc:   Ptr;  {picture comment processing}
   txMeasProc:    Ptr;  {text width measurement}
   getPicProc:    Ptr;  {picture retrieval}
   putPicProc:    Ptr;  {picture saving}
   opcodeProc:    Ptr;  {reserved for future use}
   newProc1:      Ptr;  {reserved for future use}
   newProc2:      Ptr;  {reserved for future use}
   newProc3:      Ptr;  {reserved for future use}
   newProc4:      Ptr;  {reserved for future use}
   newProc5:      Ptr;  {reserved for future use}
   newProc6:      Ptr;  {reserved for future use}
END;

Field Description

textProc

A pointer to the low-level routine that draws text. The standard QuickDraw routine is the StdText procedure.

lineProc

A pointer to the low-level routine that draws lines. The standard QuickDraw routine is the StdLine procedure.

rectProc

A pointer to the low-level routine that draws rectangles. The standard QuickDraw routine is the StdRect procedure.

rRectProc

A pointer to the low-level routine that draws rounded rectangles. The standard QuickDraw routine is the StdRRect procedure.

ovalProc

A pointer to the low-level routine that draws ovals. The standard QuickDraw routine is the StdOval procedure.

arcProc

A pointer to the low-level routine that draws arcs. The standard QuickDraw routine is the StdArc procedure.

polyProc

A pointer to the low-level routine that draws polygons. The standard QuickDraw routine is the StdPoly procedure.

rgnProc

A pointer to the low-level routine that draws regions. The standard QuickDraw routine is the StdRgn procedure.

bitsProc

A pointer to the low-level routine that copies bitmaps. The standard QuickDraw routine is the StdBits procedure.

commentProc

A pointer to the low-level routine for processing a picture comment. The standard QuickDraw routine is the StdComment procedure.

txMeasProc

A pointer to the low-level routine for measuring text width. The standard QuickDraw routine is the StdTxMeas function.

getPicProc

A pointer to the low-level routine for retrieving information from the definition of a picture. The standard QuickDraw routine is the StdGetPic procedure.

putPicProc

A pointer to the low-level routine for saving information as the definition of a picture. The standard QuickDraw routine is the StdPutPic procedure.

opcodeProc

Reserved for future use.

newProc1

Reserved for future use.

newProc2

Reserved for future use.

newProc3

Reserved for future use.

newProc4

Reserved for future use.

newProc5

Reserved for future use.

newProc6

Reserved for future use.