StdRgn

The default Quickdraw region-drawing routine

#include <Quickdraw.h> Quickdraw

void StdRgn(gVerb, theRgn );

GrafVerb gVerb ; frame, paint, erase, invert, or fill
PolyHandle theRgn ; handle leading to a Region to draw

This is Quickdraw's default low-level routine for drawing regions. The

region is framed, painted, erased, inverted, or filled, depending upon the

grafVerb.

gVerb is a GrafVerb enumerated-integer data type specifying the operation

to perform; it must be one of:

frame 0 draw the outline using current pen parameters

paint 1 fill with thePort->pnPat

erase 2 fill with thePort->bkPat

invert 3 toggle all bits enclosed by the object

fill 4 fill with thePort->fillPat

theRgn is a handle leading to a variable-length Region structure, expressed

in local coordinates, which defines the area enclosed by the region.

See FrameRgn for illustrations and related information.

Notes: Use StdRgn only if your application intercepts the Quickdraw bottleneck

routines (see SetStdProcs).

All grafVerbs are performed using values taken from the current grafPort.

Output is clipped to portBits.bounds, portRect, visRgn, and clipRgn. This

function does not affect the pen position.

If a region is currently open and being formed (see OpenRgn), and

gVerb=frame, the region's interior is added to the open region's structure.

If you're recording a picture (see OpenPicture), StdRgn incorporates

the output into its definition.

Referenced by (3):