Path: utzoo!mnetor!uunet!husc6!rutgers!lll-lcc!lll-tis!ptsfa!well!shf
From: shf@well.UUCP (Stuart H. Ferguson)
Newsgroups: comp.sys.amiga
Subject: Re: String Gadgets resolved
Message-ID: <4882@well.UUCP>
Date: 2 Jan 88 08:53:38 GMT
References: <1972@amiga.amiga.UUCP> <2030@navajo.UUCP> <195@gtss.UUCP>
Reply-To: shf@well.UUCP (Stuart H. Ferguson)
Organization: The Blue Planet
Lines: 39


The Return of the String Gadget ... part six ...

The story so far:

I'm processing IntuiMessages from a requester in a loop which has some code
in it like this

      case GADGETUP:
         ...
         case STR_ID:
            sscanf (buffer, "%d", &val);
            val = val % 16;
            sprintf (buffer, "%d", val);
            RefreshGList (&strgad, win, req, 1L);
            break;
            ...

This is supposed to update the value in a string gadget buffer and refreash
the string gadget.  It doesn't work.

The Guy in The Cape suggests that I need to insert a RemoveGadget() and
AddGadget() before the sscanf() and after the sprintf(), respectively.  He
points out that this is mentioned in the AutoDocs.  Sure enough, it is
mentioned in the AutoDocs and seems like a sensible thing to do but for one
small detail.  It doesn't work.  My Amiga goes for a holiday and doesn't
leave a forwarding address (lock up).

I suspect that this happens because this is a Requester gadget, and the
Add/RemoveGadget() functions are specifically for *Window* gadgets.
RemoveGadget() says that it will remove a REQGADGET and it does seem to
remove it and even returns a reasonable position.  But when I call the
AddGadget() function it never returns.

So, the question remains, what is the correct way to update a string gadget
in a requester?

		Stuart Ferguson
		Action by HAVOC