Article View: comp.os.os2.programmer
Article #531Re: OS2 basics
From: David Charlap
Date: Tue, 28 Jul 1992 17:36
Date: Tue, 28 Jul 1992 17:36
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In article <1992Jul27.103401.19641@hellgate.utah.edu> gershon%gr.cs.utah.edu@cs.utah.edu (Elber Gershon) writes: >o.k. OS2 gurus, here is a one (actually two) for you. > >* What is the fastest way of drawing horizontal lines? Is GpiLine optimized > for horizontal lines? Is it the OS2 kernel that draw the lines (DDA) > or is it the display driver? Use GpiLine. I don't know how optimized it is, but it's the only way I know of. (You really don't want to plot pixels or draw degenerate polygons!) I believe the functions are optimized, however, so there shouldn't be a problem. Also, by using the standard API calls, your program will improve as the system DLLs are upgraded in the future. Finally, the graphics work is a cooperative effort between the display driver and the PM*.DLL files. The display.dll handles the device- specific work, and the pm*.dll files handle the generic device- independant work. -- |) David Charlap "I don't even represent myself /|_ dic5340@hertz.njit.edu sometimes so NJIT is right out!. ((|,) ~|~ Hi! I am a .signature virus, copy me into your .signature file.
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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!ukma!rutgers!njitgw.njit.edu!hertz.njit.edu!dic5340 From: dic5340@hertz.njit.edu (David Charlap) Newsgroups: comp.os.os2.programmer Subject: Re: OS2 basics Message-ID: <1992Jul28.173631.24719@njitgw.njit.edu> Date: 28 Jul 92 17:36:31 GMT References: <1992Jul27.103401.19641@hellgate.utah.edu> Sender: news@njit.edu Organization: New Jersey Institute of Technology, Newark, N.J. Lines: 25 Nntp-Posting-Host: hertz.njit.edu