/* * * Sample Code for Gtk+ Programming in C, 1st Edition, Prentice Hall * * Copyright 2000 - 2002 Syd Logan, All Rights Reserved * * This code is distributed without warranty. You are free to use this * code for any purpose, however, if this code is republished or * redistributed in its original form, as hardcopy or electronically, * then you must include this copyright notice along with the code. * * Questions or comments regarding this code or any bugs it contains can * be directed to the author via e-mail at slogan@cts.com **/#include <gtk/gtk.h>#include <stdlib.h>#include <stdio.h>intmain( int argc, char *argv[] ){	GtkWidget *widget;	GtkArg *args;	guint nArgs;	guint32 *flags = (guint32 *) NULL;	int i; 	gtk_init (&argc, &argv);	widget = gtk_button_new_with_label( "This is a test" );  args = gtk_object_query_args( gtk_button_get_type(), &flags, &nArgs );		if ( args == (GtkArg *) NULL ) {		fprintf( stderr, "Unable to query widget's args\n" );		exit( 1 );	}	printf( "There %s %d arg%s found%s\n", (nArgs == 1 ? "was" : "were" ),		nArgs, (nArgs == 1 ? "" : "s" ), (nArgs == 0 ? "." : ":" ) );	for ( i = 0; i < nArgs; i++ ) {		printf( "Name: '%s', type: ", args[i].name );			switch( GTK_FUNDAMENTAL_TYPE (args[i].type) ) {		case GTK_TYPE_CHAR :			printf( "GTK_TYPE_CHAR, " );			break;			case GTK_TYPE_UCHAR :			printf( "GTK_TYPE_UCHAR, " ); 			break;			case GTK_TYPE_BOOL :			printf( "GTK_TYPE_BOOL, " );			break;			case GTK_TYPE_INT :			printf( "GTK_TYPE_INT, " );			break;			case GTK_TYPE_UINT :			printf( "GTK_TYPE_UINT, " );			break;			case GTK_TYPE_LONG :			printf( "GTK_TYPE_LONG, " );			break;			case GTK_TYPE_ULONG :			printf( "GTK_TYPE_ULONG, " );			break;			case GTK_TYPE_FLOAT :			printf( "GTK_TYPE_FLOAT, " );			break;			case GTK_TYPE_DOUBLE :			printf( "GTK_TYPE_DOUBLE, " );			break;			case GTK_TYPE_STRING :			printf( "GTK_TYPE_STRING, " ); 			break;			case GTK_TYPE_ENUM :			printf( "GTK_TYPE_ENUM, " );			break;			case GTK_TYPE_FLAGS :			printf( "GTK_TYPE_FLAGS, " );			break;			case GTK_TYPE_BOXED :			printf( "GTK_TYPE_BOXED, " );			break;			case GTK_TYPE_POINTER :			printf( "GTK_TYPE_POINTER, " );			break;			case GTK_TYPE_INVALID:		case GTK_TYPE_NONE:		default:			printf( "GTK_TYPE_INVALID, GTK_TYPE_NONE, or unknown, " );			break;		}			printf( "Flags: " ); 		switch( flags[i] ) { 		case GTK_ARG_READABLE :			printf( "GTK_ARG_READABLE\n" );		  break;  	case GTK_ARG_WRITABLE :			printf( "GTK_ARG_WRITABLE\n" );			break;  	case GTK_ARG_CONSTRUCT :			printf( "GTK_ARG_CONSTRUCT\n" );			break;  	case GTK_ARG_CONSTRUCT_ONLY :			printf( "GTK_ARG_CONSTRUCT_ONLY\n" );			break;  	case GTK_ARG_CHILD_ARG :			printf( "GTK_ARG_CHILD_ARG\n" );			break;  	case GTK_ARG_READWRITE :			printf( "GTK_ARG_READWRITE\n" );			break;		}	}	/* not really needed, as we are exiting */	if ( flags )		g_free( flags );	if ( args )		g_free( args );			return( 0 );}