Inside Macintosh: QuickDraw GX Printing Extensions and Drivers /

Chapter 4 - Printing Messages / Printing Messages Reference

Constants and Data Types for the Raster Imaging System

Raster Package Options

The raster package options enumeration defines constants that you can use in the packageOptions field of the raster package structure, as described in the previous section.

enum {
   gxSendAllColors   = 0x00000001,
   gxInterlaceColor  = 0x00000002,
   gxOverlayColor    = 0x00000004,
   gxUseColor        = (gxInterlaceColor|gxOverlayColor)
};
typedef long gxRasterPackageOptions;

Constant descriptions

gxSendAllColors

The driver needs to send all bands of data in the raster package, including bands that are all white.

gxInterlaceColor

The driver needs to interlace color data to prevent the ribbon from becoming contaminated.

gxOverlayColor

The driver can send colors without interlacing because the output device doesn't have a ribbon contamination problem.

gxUseColor

The driver needs to send color data. This option implies either gxInterlaceColor or gxOverlayColor.

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