Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!samsung!munnari.oz.au!csc!myb100
From: myb100@csc.anu.oz
Newsgroups: comp.sys.amiga.tech
Subject: Beginner questions - on Gadgets and Menus
Message-ID: <2232.26757d10@csc.anu.oz>
Date: 12 Jun 90 23:38:56 GMT
Organization: Computer Services, Australian National University
Lines: 62



G'day y'all !

After being such a great help with my last question, I thought I'd push
my luck and ask two (3?) this time. :-) Both are about C, the first is probably
simple :-) ? , the second probably a bit trickier.

Question (1a): I have a window with two gadgets (TOGGLESELECT), each containing
some text. When I select one of the gadgets, I'd like to change the text
contained in this gadget. Below is an excerpt. This almost makes sense, but...
I realise that I've probably crossed my &s with my .s and ->s, but I'm now 
going nuts. 

What am I doing wrong ????? 

[...]
UBYTE gad1str[]="G1";
struct IntuiText text1 {...}
struct Gadget gadg1 {...}

[ Gadget 1 has been selected..]

        {
        printf("Reporting: 1 down\n");    /* No problem here */

        strcpy(gad1str,"1g");       /* what I'd like to have in the gadget.*/
        text1.IText=&gad1str[0];    /* Is this the right                   */
        gadg1.GadgetText=&text1;    /* incantation ? It looks right...but  */
                                    /* who am I to say :-) ?               */

        BeginRefresh(my_window);
        RefreshGadgets(gadg1,my_window,NULL); 
        EndRefresh(my_window);
        }

(1b) According to the C-manual, RefreshGadgets() starts at the specified
     gadget, and works its way down the list. In my program, gadg1 is followed 
     by NULL and gadg2 is followed by &gadg1. When I replace gadg1 by gadg2 in 
     the above RefreshGadgets(), I get a guru #3, regardless of anything else 
     I had before it....how come ?


(2) I've seen a neat sub-menu used in some programs, like VLT, where the 
    sub-menu items were in a 4x3 grid, i.e. 12 items, 3 to each of 4 lines.
    Does anyone have some example code they could show me as to how this is 
    done ? 

Any help on either item will be *greatly* appreciated. [E-mail or Post..] 
I support any calls for more example code in the Public Domain ! Us beginners
with Intuition from C would appreciate it ! 

ANTICI..(tanx heeps)..PATION... :-)

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