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### Detecting video adapter types (CGA/MDA/EGA/VGA) ### |
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This article has been copied from the PC MAGAZINE issued September 26, 1989 (al… |
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DETECTING VIDEO ADAPTER TYPES |
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Occasionally a program needs to be able to detect what type of display it's run… |
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-- Ned Phillips, Gainesville, Florida |
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PC Magazine: |
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It is true that Microsoft Windows once identified an EGA by the IBM signature i… |
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The best way for your program to determine what video adapter is in a given sys… |
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* Check for the presence of a VGA by calling interrupt 10h with AH set to 1Ah … |
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* Check for the presence of an EGA by executing an interrupt 10h with AH set t… |
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* Assume that either a CGA or MDA is installed and determine which of the two … |
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One configuration detail every program should watch for is the possibility that… |
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Another important point to remember is that both the EGA and the VGA can operat… |
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-- Jeff Prosise |
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=== Attachments ========================================== |
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