6.3.3 General Color Data

Choosing the fGeneral button displays the fGeneral dialog box. This dialog box contains three boxes which specify general color capabilities for a printer. The following illustration shows the fGeneral dialog box:

The following list provides a brief description each control.

Control Description

DC_PRIMARY_RGB If this bit is set, sPlanes must equal 3 with the Universal Printer Driver. The Universal Printer Driver will first send data for the red plane, followed by the blue and green planes. The printer will then convert this data into an index into its own color palette to obtain the 8 basic colors. If this bit is not set, the Universal Printer Driver sends black data first (only if the DC_EXTRACT_BLACK bit is set, followed by data for the cyan, magenta and yellow planes.)
DC_EXTRACT_BLK If this bit is set, sPlanes must equal 4. This control specifies that the printer renders black using a separate ink or ribbon. (If this control is not set, the Universal Printer Driver assumes that the printer renders black by mixing the other colors.)
DC_SEND_CR Specifies that the Universal Printer Driver must send a carriage return to clear the output buffer prior to processing the next plane of color-raster data.

HP PaintJet

For the HP PaintJet printer, the DC_PRIMARY_RGB box is checked since the printer uses the RGB color model.