NetNews Usenet Archive 1992 #16/NN_1992_16.iso/spool/comp/sys/acorn/7958

Internet Message Format | 1992-07-20 | 1.6 KB

Path: sparky!uunet!mcsun!sunic!isgate!krafla!grun.is!thsa
From: [e-mail] (Thorvaldur S. Arnarson)
Newsgroups: comp.sys.acorn
Subject: Re: IconFlag "NeedsHelpToBeRedrawn"
Message-ID: <[e-mail]>
Date: 20 Jul 92 12:50:12 GMT
References: <[e-mail]> <[e-mail]>
Organization: G.Run hf
Lines: 28

[e-mail] (TMOTA) writes:
>[e-mail] (Thorvaldur S. Arnarson) writes:
>>I've been trying to figure out what happens when the "NeedsHelpToBeRedrawn"
[stuff deleted...]
>I think this means that to get any effect you must have needs-help set in
>the icon, AND auto-redraw turned off in the window.

>the icon, AND auto-redraw off in the window...
>--
>_________________  "I'd like to answer this question in two ways:
>  /____ _ _/_ __       First in my normal voice, and then
> // / //_//_ /_/       in a silly, high-pitched whine." (Monty Python)

I allways thoght the NeedsHelp bit was a means to get redraw requests for
a small portion of the screen, but as I have now found out it works
something like this:
  o If the AutoRedraw bit of the window is on this bit produces no effect
    at all!
  o If AutoRredraw is set the area under the icon is redrawn regardless of
    NeedsHelp.
  o If NeedsHelp and Autoredraw are set and SWI "Wimp_SetIconState" is
    executed a redraw request is issued for the area behind the icon.

In my oppinion this behaviour is rather mildly usefull.  It would have
given more exact control over redraws if this bit caused redraw requests
for the iconarea in an AutoRedraw window.
--
Thorvaldur S. Arnarson ([e-mail])  Short .sig rules!