EraseArc

Fill wedge of an oval with background pattern

#include <Quickdraw.h> Quickdraw

void EraseArc( theRect, startAngle, arcAngle );

Rect *theRect ; rectangle defining position and size

short startAngle ; position where arc begins

short arcAngle ; extent of the arc

EraseArc erases a wedge of an oval whose size is defined by a rectangle. The

wedge is filled with the background pattern of the current GrafPort, using the

patCopy transfer mode.

theRect is the address of an 8-byte Rect structure, defined in local

coordinates. It defines the size and position of the oval, of which the

arc is a subset.

startAngle specifies the starting position and ...

arcAngle specifies the distance along the arc to be erased. See FrameArc for

a description of Quickdraw "rectangular degrees" and related

information and examples.

Notes: EraseArc is functionally equivalent to:

FillArc( & theRect, startAngle, arcAngle, thePort->bkPat );

The pen position is not changed by this function.

As with all Quickdraw drawing, the output is clipped to the intersection of

the current GrafPort's bitMap boundary rectangle, the port rectangle,

clipping region, and visible region.

Referenced by (2):