NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/sys/amiga/programmer/660

Text File | 1996-08-05 | 5.0 KB | 146 lines

Path: cs.uwa.edu.au!jasonb
From: [e-mail] (Jason S Birch)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Help me with a basic MUI program PLEASE?
Date: 10 Jan 96 06:01:26 GMT
Organization: The University of Western Australia
Message-ID: <[e-mail]>
References: <[e-mail]>
NNTP-Posting-Host: decadence.cs.uwa.oz.au
X-Newsreader: NN version 6.5.0 #3 (NOV)

[e-mail] (John J. Maver) writes:
>    Could someone please help me with MUI?  I have started trying to use
>MUIBuilder,and I can't seem to make a good main.c to control the code it
>generates.  I am new to MUI.  All I want to know is how to open the window and
>then when the person hits the close gadget, have the window close.  With my
>existing main.c. the window opens and is open for good!!

Here's a main program that works with your files. It's a slight
modification of MUIBuilder/C/Examples/MUIB-Demo.c to make it more
up-to-date:

/* Libraries */
#include <libraries/mui.h>

/* Note: If you're using SAS/C, you might prefer to change these
   to <proto/...> and use registerized parameters. */

/* protos */
#include <clib/muimaster_protos.h>
#include <clib/alib_protos.h>
#include <clib/dos_protos.h>
#include <clib/exec_protos.h>

/*  Pragmas  */
#include <pragmas/muimaster_pragmas.h>
#include <pragmas/exec_pragmas.h>

/*  Ansi  */
#include <stdlib.h>
#include <stdio.h>

/* MUIBuilder */
#include "test.h"

struct Library * MUIMasterBase;

/* Init function */
static void init( void )
{
        if (!(MUIMasterBase = OpenLibrary(MUIMASTER_NAME,MUIMASTER_VMIN)))
        {
                printf("Can't Open MUIMaster Library");
                exit(20);
        }
}

/* main function */
main()
{
        struct ObjApp * App = NULL;     /* Application object */
        ULONG   signal;

        /* Program initialisation (you need to write it yourself) */
        init();

        /* Create Application : generated by MUIBuilder */
        if (App = CreateApp()){

            /* Your CreateApp() will already open the window for you. If it
             * didn't, you'd have:
             *   set(App->WI_label_0, MUIA_Window_Open, TRUE);
             * somewhere here.
             */

            /* Set up a notification on the Window's CloseRequest attribute.
             * This attribute is set to TRUE whenever someone clicks on the
             * close gadget. What we're doing here is telling the window to
             * call the app's ReturnID method with the value of ReturnID_Quit,
             * which we'll then check for in our main loop, where we call the
             * NewInput method.
             */
            DoMethod(App->WI_label_0,       /* The window */
                    MUIM_Notify, MUIA_Window_CloseRequest, TRUE,
                    App->App,
                    2,
                    MUIM_Application_ReturnID, MUIV_Application_ReturnID_Quit
            );
            /* Note that this should be the only ReturnID you use. Earlier
             * examples of MUI programs used ReturnID's for a great deal of
             * work, creating event loops like typical GadTools programs.
             * Avoid this. Instead, create custom classes (it's very, very
             * easy - try to understand PSI.c to learn, along with the
             * Class1.c, Class2.c and Class3.c demos in
             * MUI:Developer/C/Examples) and set up notifications between
             * them.
             * The main event loop should look similar to the following:
             */
            while (DoMethod(App->App, MUIM_Application_NewInput, &signal) != MUIV_Application_ReturnID_Quit) {
                if (signal){                /* Wait for a signal */
                    signal = Wait(signal | SIGBREAKF_CTRL_C);
                    if (signal & SIGBREAKF_CTRL_C)
                        break;
                }
            }
            /* While it's not necessary, you could do a:
             *   set(App->WI_label_0, MUIA_Window_Open, FALSE);
             * here to close the window first.
             */

            DisposeApp(App);
        } else
            printf("Failed to create application!\n");

        CloseLibrary(MUIMasterBase);
        exit(0);
}

>    Is there a good reference for MUI?  Some basic examples, not some 18 part
>multiprogram.

I started by using MUIBuilder to generate some GUIs - the code above
can be used for pretty much any MUIBuilder interface, now that
MUIBuilder allows you to set up the notifications - and seeing what
the result was. Then I moved onto the source code for the demos that
come with MUI, and finally joined the mui mailing list:

To: [e-mail]
Subject:

SIGNON mui

(Or something like that, anyway. :)

>    Thank you for your help.

No worries.

><tsb> John J. Maver

--
Jason S Birch                        ,-_|\ email: [e-mail]
Department of Computer Science      /     \ Tel (work): [phone]
The University of Western Australia *_.-._/ Fax (work): [phone]
Nedlands  W. Australia  6907             v  Tel (home): [phone]