GTK界面编程(二)：按键组件

一、按键

代码示例：

#include  <gtk/gtk.h>
#include  <stdio.h>

//点击按钮后被调用的函数，用于输出hello，world
static void button1_print_msg (GtkWidget *button , gpointer data)
{
    printf("<button1_print_msg> Active!\n");
    printf("ret = %d \n",system("ls"));//正常  ret = 0
	printf("ret = %d \n",system("cd ~/apollo"));//正常  ret = 0
    printf("ret = %d \n",system("bash docker/scripts/dev_start.sh"));//正常  ret = 0
    printf("ret = %d \n",system("bash docker/scripts/dev_into.sh"));//正常  ret = 0
    
}
static void button2_print_msg (GtkWidget *button , gpointer data)
{
    printf("<button2_print_msg> Active!\n");
    printf("ret = %d \n",system("bash scripts/bootstrap.sh"));//正常  ret = 0
}
 
static void activate (GtkApplication *app , gpointer data)
{
    GtkWidget *win;
    
    //申明按钮
    GtkWidget *button1;
    GtkWidget *button2;
    //申明一个盒容器，用于容纳按钮，控制大小
    GtkWidget *button_box;
 
    win = gtk_application_window_new(app);
 
    gtk_window_set_title(GTK_WINDOW(win) , "Button test");
    gtk_window_set_default_size(GTK_WINDOW(win) , 200 , 200);
 
    //创建一个盒容器，并设置水平放置
    button_box = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL); //gtk_orientation_horizontal
    
    //将盒容器包含进window中
    gtk_container_add(GTK_CONTAINER(win) , button_box);
 
    //创建2个按钮，并带有“My button1 & 2” 的标签
    button1 = gtk_button_new_with_label("My button1");
    button2 = gtk_button_new_with_label("My button2");

    //连接信号，让点击按钮后，便调用 print_msg 函数
    g_signal_connect(button1 , "clicked" , G_CALLBACK( button1_print_msg ) , NULL);
    g_signal_connect(button2 , "clicked" , G_CALLBACK( button2_print_msg ) , NULL);
    //将按钮放入盒容器中
    gtk_container_add(GTK_CONTAINER(button_box) , button1);
    gtk_container_add(GTK_CONTAINER(button_box) , button2);
 
    //显示window及其所有控件
    gtk_widget_show_all(win);
}
 
int main(int argc , char **argv)
{
    GtkApplication *app;
    int app_status;
 
    app = gtk_application_new("org.gtk.exmple" , G_APPLICATION_FLAGS_NONE);
    g_signal_connect(app , "activate" , G_CALLBACK(activate) , NULL);
 
    app_status = g_application_run(G_APPLICATION(app) , argc , argv);
 
    g_object_unref(app);
 
    return app_status;
}

编译：

sudo gcc main.c -o main `pkg-config --cflags --libs gtk+-3.0`

运行结果：