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256-Color Graphics Looks Negative As It Remap
DocumentID: 607741
Revision Date: 29-Feb-96 1:32:31 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Symptoms: A 256-color graphic looks like a negative in WP 5.1. The graphic looks fine in WordPerfect 5.1 for Windows. Solutions: The 256-color graphic is remapping the color palette of the screen. WP maps the colors in PCX format to the display's color palette by number, not by color (e.g., Red, Green, Blue from color number 10 in the file changes R,G,B of color 10 on display).

NOTE: WP 5.1 for DOS will not allow the graphic to change the current foreground and background colors (see memo 16087W). If the colors in the file do not match the colors the graphic driver displays, the graphic will look incorrect. WP does not do any dithering with the color graphic. In other words, WP does not try to make a shade of blue show on the screen as a particular shade of blue by using patterns of blue and black or blue and white pixels.

WP 5.1 for Windows does dithering of colors if it is a Vector graphic. If the graphics are bitmapped, Windows will remap the colors for the display.

Answer:

Details:


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