Legacy Document

Inside Macintosh: Imaging With QuickDraw /

Chapter 3 - QuickDraw Drawing / QuickDraw Drawing Reference

Routines / Drawing Rounded Rectangles

FrameRoundRect

To draw an outline inside a rounded rectangle, use the FrameRoundRect procedure.

PROCEDURE FrameRoundRect (r:\xDDRect; ovalWidth,ovalHeight: Integer);

r

The rectangle that defines the rounded rectangle's boundaries.

ovalWidth

The width of the oval defining the rounded corner.

ovalHeight

The height of the oval defining the rounded corner.

DESCRIPTION

Using the pattern, pattern mode, and size of the graphics pen for the current graphics port, the FrameRoundRect procedure draws an outline just inside the rounded rectangle bounded by the rectangle that you specify in the r parameter. The outline is as wide as the pen width and as tall as the pen height. The pen location does not change.

Use the ovalWidth and ovalHeight parameters to specify the diameters of curvature for the corners of the rounded rectangle.

If a region is open and being formed, the outside outline of the new rounded rectangle is mathematically added to the region's boundary.

SPECIAL CONSIDERATIONS

The FrameRoundRect procedure may move or purge memory blocks in the application heap. Your application should not call this procedure at interrupt time.