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From: Sunny <daetalusun@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: How to use a function in a procedure call?
Date: Fri, 30 Sep 2011 20:53:42 -0700 (PDT)
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Date: 2011-09-30T20:53:42-07:00
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On Oct 1, 3:13=A0am, Jeffrey Carter <spam.jrcarter....@spam.not.acm.org>
wrote:
> On 09/30/2011 03:41 AM, Sunny wrote:
>
> > Hi all!
> > I want so set a icon to my frame. Use GtkAda. But when I use the
> > Set_Icon_From_File(win,"icon.jpg");
> > An Error said that "can not use function 'Set_Icon_From_File' in a
> > procedure call"
>
> As the msg indicates, Set_Icon_From_File is a function, not a procedure. =
While
> some languages allow you to silently discard a function result, Ada does =
not. So
> you must do something with the result of the function call, such as store=
 it in
> a variable, pass it to another subprogram, or use it in an expression.
>
Thanks for your reply. Could you indicate a specified way to solve the
problem? Such as how to store-it in a variable, pass it to another
subprogram, or use it in an expression?
Thank you again!