Documentation de la bibliothèque MLV-2.0.2

Le but de ce programme est de donner un outil simple permettant d'obtenir rapidement les différents codes (sym et unicode) et les différents modes du clavier lorsque l'on appuie sur une touche du clavier.

Le code source suivant ne constitue pas un tutoriel.

#ifndef _GNU_SOURCE
        #define _GNU_SOURCE
#endif
#include <stdio.h>

#if defined( __WIN32__ ) || defined( _WIN32 ) || defined( __CYGWIN__ )
extern int asprintf (char **, const char *, ...);
#endif

#include <stdlib.h>
#include <string.h>
#include <MLV/MLV_all.h>

void draw_sentence( int width, int height ){
        MLV_clear_window( MLV_COLOR_BLACK );
        MLV_draw_adapted_text_box(
                10, 50, 
                "Appuyez sur une touche pour connaître :\n    - son code,\n    - son mode,\n    - son code unicode,\n    - le caractère qui lui est associé.",
                3,
                MLV_COLOR_BLACK, MLV_COLOR_GREEN, MLV_COLOR_BLACK,
                MLV_TEXT_LEFT
        );
}

//
// Attention ! 
// Pour pouvoir compiler ce programme sous windows et sous macintosh,
// il faut, pour la déclaration du main, respecter strictement la syntaxe
// suivante :
//
int main( int argc, char *argv[] ){

        int width = 640;
        int height = 480;

        MLV_create_window( "beginner - 10 - Le code des touches du clavier", "codes - touches du clavier", width, height );

        draw_sentence( width, height );
        MLV_actualise_window();

        MLV_Keyboard_button sym;
        const char* sym_string;
        MLV_Keyboard_modifier mod;
        char* mod_string;
        int unicode;
        char* character;
        char* text;

        while( 1 ){
                MLV_wait_keyboard( &sym, &mod, &unicode );
                sym_string = MLV_convert_keyboard_button_to_string( sym );
                mod_string = MLV_convert_keyboard_mod_to_string( mod );
                character = MLV_convert_unicode_to_string( unicode );

                if(
                        asprintf(
                                &text, 
                                "Information sur la touche:\n-------------------------\nSym : %s \nMod : %s \nUnicode : %d \nCaractère : %s \n\n",
                                sym_string, mod_string, unicode, character
                        ) == -1
                ){
                        fprintf( stderr, "Allocation Error - file : %s, line : %d \n", __FILE__, __LINE__);
                        exit(1);
                };

                printf( "%s", text );

                draw_sentence( width, height );
                MLV_draw_adapted_text_box(
                        10, 160, text, 6,
                        MLV_COLOR_BLACK, MLV_COLOR_GREEN, MLV_COLOR_BLACK,
                        MLV_TEXT_LEFT
                );
                MLV_actualise_window();

                free( character );
                free( mod_string );
                free( text );
        
        }

        MLV_free_window();

        return 0;
}

/*
 *   This file is part of the MLV Library.
 *
 *   Copyright (C) 2010-2014 Adrien Boussicault, Marc Zipstein
 *
 *
 *    This Library is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This Library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this Library.  If not, see <http://www.gnu.org/licenses/>.
 */