Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!ccu.umanitoba.ca!herald.usask.ca!alberta!brazeau.ucs.ualberta.ca!unixg.ubc.ca!ubc-cs!uw-beaver!cornell!rochester!udel!haven.umd.edu!mimsy!mojo.eng.umd.edu!stripes From: stripes@eng.umd.edu (Joshua Osborne) Newsgroups: comp.windows.x Subject: Re: visual classes Keywords: TrueColor, StaticColor Message-ID: <1991Jun28.202530.15560@eng.umd.edu> Date: 28 Jun 91 20:25:30 GMT References: <26521@beta.gov> Organization: College of Engineering, Maryversity of Uniland, College Park Lines: 39 In article <26521@beta.gov> aob@beta.gov (Alexander O. Brown) writes: >How common are systems that only support TrueColor or StaticColor? I imagine DirectColor is going to be more common, we have gooten good at 8bit color, but "Visulation" (sorry 'bout the poor spelling) needs more colors to work well. I know you can have a >8bit PsudoColor, but deep displays are normally DirectColor (or TrueColor). TrueColor is only really going to be on 24bit deep displays (other displays offen emulate them); how common do you think they will be? I don't see any reason why StaticColor (only) systems would become more common. They are rare now. >Also, DirectColor is supposed to support PseudoColor. How >would I change the visual from Direct to Pseudo? You don't, and it can't allways "support" it. (i.e. if your DirectColor was 6bit/4bit/4bit (I think the RS/6000 has a display like this) then you only get 16 writable cells, you can't support a PsudoColor with more then 16 cells without a lot of tricks. > Or is there >always a Pseudo visual avaiable if the default is Direct? This is not true. And even if it was currently true, it doesn't mean it will stay that way. > Or >do I simply just "simulate" Pseudo with code? It isn't simple, but if you need writeable colorcells and you need to run on all color systems, you will need to "simulate" writeable cells. -- stripes@eng.umd.edu "Security for Unix is like Josh_Osborne@Real_World,The Multitasking for MS-DOS" "The dyslexic porgramer" - Kevin Lockwood "CNN is the only nuclear capable news network..." - lbruck@eng.umd.edu (Lewis Bruck)