Groups > comp.lang.basic.visual.misc > #2248

Re: A little help

From	Deanna Earley <dee@earlsoft.co.uk>
Newsgroups	comp.lang.basic.visual.misc
Subject	Re: A little help
Date	2015-04-08 10:51 +0100
Organization	Aioe.org NNTP Server
Message-ID	<mg2top$qge$1@speranza.aioe.org> (permalink)
References	<mfrdln$ic3$1@speranza.aioe.org> <mfrjeh$jbk$1@dont-email.me> <mfrsd5$obb$1@speranza.aioe.org> <mg1kkv$fo0$1@dont-email.me> <mg1lf7$64t$1@speranza.aioe.org>

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On 07/04/2015 23:24, Stl Mongo wrote:
> I'm using .NET (VB 2012). The issue I was having was with the text on
> the label not showing during each iteration. By adding the Refresh()
> function I was able to fix that.
> 
> I actually went back after earlier today and commented out the Refresh()
> and tried DoEvents() again and it worked that way also. I'm not sure why
> it didn't work before, but I'm sure it was my mistake.
> 
> Thanks again for your help.

In summary, drawing (updated text or graphics) is normally only done
when you explicitly ask for a redraw (with .Refresh) or the message pump
is run (DoEvents).

Most graphical operations just update internal state and set a flag
saying "redraw required". This stops CPU being chewed up when something
isn't actually visible.

-- 
Deanna Earley (dee@earlsoft.co.uk, dee@doesnotcompute.co.uk)

(Replies direct to my email address will be printed, shredded then fed
to the rats. Please reply to the group.)

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Thread

A little help Stl Mongo <stlmongo@sbcglobal.net> - 2015-04-05 08:34 -0500
  Re: A little help Ron Weiner <rw@domain.com> - 2015-04-05 11:14 -0400
    Re: A little help Stl Mongo <stlmongo@sbcglobal.net> - 2015-04-05 12:46 -0500
      Re: A little help mike <spamme9@gmail.com> - 2015-04-07 01:06 -0700
      Re: A little help Michael Cole <noone@invalid.com> - 2015-04-08 08:11 +1000
        Re: A little help Stl Mongo <stlmongo@sbcglobal.net> - 2015-04-07 17:24 -0500
          Re: A little help Deanna Earley <dee@earlsoft.co.uk> - 2015-04-08 10:51 +0100

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