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Accelerated graphics display method

  • US 5,321,807 A
  • Filed: 11/27/1991
  • Issued: 06/14/1994
  • Est. Priority Date: 11/27/1991
  • Status: Expired due to Term
First Claim
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1. A method for displaying an image on a display screen comprising the steps of:

  • receiving an event from a host computer in response to operator input;

    determining if an event is an update image event;

    determining, when said event is an update image event, a first video display where image data is located in memory and a second video display where a window to be updated is loaded;

    preparing a copy command to request that a graphics controller copy the image data from a first video display memory into the memory of a second display; and

    sending the copy command to the graphics controller so that the graphics controller copies the image data from a memory of the first video display to a memory of the second video display.

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