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Groups > comp.sys.acorn.programmer > #6261

Re: White background colour in GCOL is grey.

From Richard Ashbery <basura@invalid.addr.uk>
Newsgroups comp.sys.acorn.programmer
Subject Re: White background colour in GCOL is grey.
Date 2021-05-12 14:53 +0100
Organization None
Message-ID <592b7c1815basura@invalid.addr.uk> (permalink)
References <912abee8-d3e2-482b-8da5-21a84513ab87n@googlegroups.com>

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<912abee8-d3e2-482b-8da5-21a84513ab87n@googlegroups.com>,
   George Pearce <chasgpearce@gmail.com> wrote:
> Could some kind soul help an ageing forgetful BASIC programmer.

> I am simply trying to open a graphics window with a white
> background in 16 million colour mode in RIScOS 4.?. I am calling
> MODE MODE in 1900x1080p. GCOL seems to have been extended in v5.

> Best I can do is GCOL 0, 191, which seem to give a light grey
> rather than full white. I can obviously correct this after the
> event, but am sure there must be a solution which I have yet to
> discover.

GCOL ON 255,255,255 : CLG

Hope that helps

Richard

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Thread

White background colour in GCOL is grey. George Pearce <chasgpearce@gmail.com> - 2021-05-11 07:03 -0700
  Re: White background colour in GCOL is grey. Richard Coleman <coleman@orpheusmail.co.uk> - 2021-05-12 06:44 -0700
  Re: White background colour in GCOL is grey. Richard Ashbery <basura@invalid.addr.uk> - 2021-05-12 14:53 +0100
    Re: White background colour in GCOL is grey. Steve Fryatt <news@stevefryatt.org.uk> - 2021-05-12 18:23 +0100
      Re: White background colour in GCOL is grey. George Pearce <chasgpearce@gmail.com> - 2021-05-13 02:38 -0700
        Re: White background colour in GCOL is grey. Martin <News03@avisoft.f9.co.uk> - 2021-05-13 12:33 +0100
          Re: White background colour in GCOL is grey. George Pearce <chasgpearce@gmail.com> - 2021-05-13 06:40 -0700
            Re: White background colour in GCOL is grey. News <chrisjohnson@spamcop.net> - 2021-05-13 16:49 +0100
            Re: White background colour in GCOL is grey. Martin <News03@avisoft.f9.co.uk> - 2021-05-13 17:09 +0100
              Re: White background colour in GCOL is grey. George Pearce <chasgpearce@gmail.com> - 2021-05-13 09:22 -0700
        Re: White background colour in GCOL is grey. J Peachey <john@jpeachey.co.uk> - 2021-05-13 15:04 +0100
        Re: White background colour in GCOL is grey. Steve Fryatt <news@stevefryatt.org.uk> - 2021-05-13 21:52 +0100
          Re: White background colour in GCOL is grey. George Pearce <chasgpearce@gmail.com> - 2021-05-14 02:54 -0700
            Re: White background colour in GCOL is grey. Martin <News03@avisoft.f9.co.uk> - 2021-05-14 11:05 +0100
              Re: White background colour in GCOL is grey. George Pearce <chasgpearce@gmail.com> - 2021-05-14 07:50 -0700

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