Inside Macintosh: QuickDraw GX Objects /

Chapter 2 - Shape Objects / Shape Objects Reference

Constants and Data Types

Shape Fill

Each shape object has a shape fill property. The shape fill specifies how QuickDraw GX interprets the geometry of the shape: how the shape is drawn, how the shape is hit-tested, and how certain geometric operations, like the intersection operation, interpret the shape.

Constants for all shape fills are defined in the gxShapeFills enumeration:

enum gxShapeFills {
   gxNoFill,               /* shape not drawn */
   gxOpenFrameFill,        /* framed, one edge left open */
   gxFrameFill          = gxOpenFrameFill,   
   gxClosedFrameFill,      /* framed, closed completely */
   gxHollowFill         = gxClosedFrameFill, 
   gxEvenOddFill,          /* filled using even-odd rule */
   gxSolidFill          = gxEvenOddFill,     
   gxWindingFill,          /* filled using winding-number rule */
   gxInverseEvenOddFill,   /* filled inverse of even-odd rule */
   gxInverseSolidFill   = gxInverseEvenOddFill,
   gxInverseFill        = gxInverseEvenOddFill,
   gxInverseWindingFill    /* filled inverse of winding-number */
};

typedef long gxShapeFill;

The individual shape fills are described further in Table 2-2 on page 2-13.