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Bitmapped Graphic Can't Be Moved In Graphics
DocumentID: 617772
Revision Date: 29-Feb-96 1:37:43 PM

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

Problem

Symptoms: Using a Kurzweil Discover 7320 OCR, the user created a PCX file and brought it into WordPerfect 5.0. The user was able to edit the graphic like any other graphics image. In WP 5.1, however, as soon as the image is visible in the Graphics Edit screen and the user presses the arrow keys, the image disappears. The only way the user can get the image to move is to use the Move option (1). If the arrow keys do something to the image, the jump it makes is considerable and the image (now off the view screen) is not retrievable. Solutions: PCX files contain the dot per inch (DPI) information in the file header. Development changed the conversion to use this value instead of the default 75 DPI values when calculating the file size. The image disappears because the image was actually scanned at 300 DPI, but since PCX files have no DPI information, WP assumes 75 DPI (normal screen resolution). Therefore, the image width is 40000+ wpus (37") and fouls up WP's signed arithmetic. This problem was corrected in the 03/30/90 release of the program.

Answer:

Details:


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