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- From: auhl@fzi.DE (Axel Uhl)
- Subject: What to do with an LDT descriptor
- Message-ID: <1992Nov12.185740.1829@fzi.de>
- Sender: news@fzi.de (FZI-news)
- Reply-To: fzi.de
- Organization: Forschungszentrum Informatik (FZI), Karlsruhe, Germany
- Date: Thu, 12 Nov 1992 18:57:40 GMT
- Lines: 14
-
-
- The online documentation tells about getting an LDT descriptor by a call
- to a category 3 function via DosIOCtl (don't know the function number at the
- moment, something aroud 70H).
- Now I have two questions. I know that this function yields the selector number.
- But where can I use this selector number? Do I have to set DS to this number
- in order to access the defined segment? And if so, how do I set DS from
- within C ?
- If I ask this function to create a descriptor for the video ram, and I'm running
- a text mode application in an OS/2 window, is the video ram mapped to match
- the window image, or will I modify the whole screen when touching the video
- ram through this selector?
-
- Axel (auhl@fzi.de)
-