glade3教程（五）--对话框

白浪 · 发表于 2013-9-19 15:35:30

打开glade 放置一个窗口，然后在窗口上放置一个按钮然后放置一个信息对话框在对话框上面放置两个按钮保存为dialog.glade 如图所示

打开code::blocks 输入以下代码

代码都比较简单

/*

作者：bailangcn

时间：2012/3/21

作者主页：bailangcn.tk

*/

#include <gtk/gtk.h>

void show_dialog(void)
{
GtkWidget *dialog;
GtkWidget *builder;
GtkResponseType response;
builder = gtk_builder_new();
gtk_builder_add_from_file(builder, "dialog.glade", NULL);
dialog = GTK_WIDGET(gtk_builder_get_object(builder,"messagedialog"));
response = gtk_dialog_run (GTK_DIALOG (dialog));
if(response==GTK_RESPONSE_OK)
{
g_printf("ok\n");
}
else if(response==GTK_RESPONSE_CANCEL)
{
g_printf("CANCEL\n");
}
gtk_widget_destroy(GTK_WIDGET(dialog));
g_object_unref(G_OBJECT(builder));
}

int main(int argc, char *argv[])
{
GtkBuilder *builder;

gtk_init(&argc, &argv);
GtkWidget *window;

GtkWidget *button1;

builder = gtk_builder_new();
gtk_builder_add_from_file(builder, "dialog.glade", NULL);

window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
button1 = GTK_WIDGET(gtk_builder_get_object(builder,"button1"));

g_signal_connect(G_OBJECT(window),"delete_event",G_CALLBACK(gtk_main_quit),NULL);
g_signal_connect(G_OBJECT(button1),"pressed",G_CALLBACK(show_dialog),NULL);

// gtk_builder_connect_signals(builder, NULL);//自动关联已在 UI 文件配置好的信号如果你不在galde文件里面配置信号这行代码可以不用

g_object_unref(G_OBJECT(builder));

gtk_widget_show_all(window);
gtk_main();
return 0;
}

运行后如下：

解释一下：在gtkdialog.h里面有这样子的定义

typedef enum
{
/* GTK returns this if a response widget has no response_id,
* or if the dialog gets programmatically hidden or destroyed.
*/
GTK_RESPONSE_NONE = -1,

  /* GTK won't return these unless you pass them in
* as the response for an action widget. They are
* for your convenience.
*/
  GTK_RESPONSE_REJECT = -2,
  GTK_RESPONSE_ACCEPT = -3,

/* If the dialog is deleted. */
GTK_RESPONSE_DELETE_EVENT = -4,

  /* These are returned from GTK dialogs, and you can also use them
* yourself if you like.
*/
  GTK_RESPONSE_OK    = -5,
  GTK_RESPONSE_CANCEL = -6,
  GTK_RESPONSE_CLOSE  = -7,
  GTK_RESPONSE_YES = -8,
  GTK_RESPONSE_NO    = -9,
  GTK_RESPONSE_APPLY  = -10,
  GTK_RESPONSE_HELP = -11
} GtkResponseType;

本文始发于：http://www.bailangcn.tk/?post=20转载请注明

白浪 · 发表于 2013-9-19 15:39:34

本来我是一次性将控件从glade文件里面提取出来，然后运行的时候再显示，用完再隐藏起来，经测试发现第一次运行很正常，但是隐藏之后再显示出来就有些显示不出来了，不知道是什么原因，最后去国外的英文社区去看，发现蛮多人也是这样子的，有大神说在显示控件函数中再提取就好了，经测试发现的确是正常的，这样子做有什么不良的后果吗？有知道的人请赐教

		自动登录	找回密码
密码			马上加入