GtkButton动态设置按钮的图像

/*

 * Copyright (C) Jcodeer Zhang 2011

 * 

 * This application 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 application 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 program.  If not, see <

 * 

 * 功能介绍

 * 演示动态设置按钮的图标

 * 构建命令

 * gcc -g -o 013.exe 013.c `pkg-config --cflags --libs gtk+-2.0`

 */

#include

/**

*callback function of button

*@param w widget

*@param userdata

*/

void hello_proc(GtkWidget* w,gpointer userdata)

{

    //使用内置的图标创建图像

GtkWidget* img = gtk_image_new_from_stock(GTK_STOCK_CDROM,GTK_ICON_SIZE_BUTTON);

//动态设置按钮的图像

gtk_button_set_image(GTK_BUTTON(w),img);

}

int main(int argc,char** argv)

{

    gtk_init(&argc,&argv);

GtkWidget* main_win = gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_container_set_border_width(GTK_CONTAINER(main_win),5);

    //创建垂直布局

GtkWidget* v = gtk_vbox_new(FALSE,5);

gtk_container_add(GTK_CONTAINER(main_win),v);

    //创建按钮

GtkWidget* b = gtk_button_new_with_label("GTK+ Button");

//将按钮加入到布局中

gtk_box_pack_start(GTK_BOX(v),b,FALSE,FALSE,0);

//添加单击事件处理函数

g_signal_connect(G_OBJECT(b),"clicked",G_CALLBACK(hello_proc),NULL);

g_signal_connect_swapped(G_OBJECT(main_win),"destroy",G_CALLBACK(gtk_main_quit),NULL);

//显示主窗口及其子窗口

gtk_widget_show_all(main_win);

gtk_main();

    return 0;

}