[C] GTK 问题 [复制链接]

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电梯直达

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发表于 2008-09-27 17:07 |只看该作者 |倒序浏览

#include <gtk/gtk.h>

gint hello(GtkWidget *widget,gpointer data){
g_print("传递进来的消息是：%s\n",(gchar *)data);
gtk_main_quit();
return FALSE;
}

int main(int argc,char *argv[]){
GtkWidget *window_main;
GtkWidget *button_exit;
gtk_init(&argc,&argv);
window_main=gtk_window_new(GTK_WINDOW_TOPLEVEL);
button_exit=gtk_button_new_with_label("Exit");

gtk_window_set_title(GTK_WINDOW(window_main),"Hello,Window！");
gtk_window_set_default_size(GTK_WINDOW(window_main),200,200);
gtk_container_add(GTK_CONTAINER(window_main),button_exit);

g_signal_connect(G_OBJECT(button_exit),"clicked",G_CALLBACK(hello),"你点EXIT按钮关闭的！");
g_signal_connect(G_OBJECT(window_main),"delete_event",G_CALLBACK(hello),"你点的窗口按钮关闭的！");

gtk_widget_show_all(window_main);

gtk_main();

return 0;

}

为什么不会出现 "你点的窗口按钮关闭的！“ 这个字符串没有传递过去吗？

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naihe2010

小富即安

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2楼 [报告]

发表于 2008-09-27 17:19 |只看该作者

当gtk_main_quit的时候，并不会产生delete_event事件，你可以点击关闭按钮（假如你的windows manager有关闭按钮的话）来触发这个事件。

另外，window的delete_event的回调参数第三项还是传进去的自定义参数值。

试试这样写：
<code>
#include <gtk/gtk.h>

gint
hello (GtkWidget * widget, gpointer data, gpointer data2)
{
  g_print ("传递进来的消息是：%s\n", (gchar *) data);
  gtk_main_quit ();
  return FALSE;
}

gint
hello2 (GtkWidget * widget, gpointer data, gpointer data2)
{
  g_print ("传递进来的消息是：%s\n", (gchar *) data2);
  gtk_main_quit ();
  return FALSE;
}

int
main (int argc, char *argv[])
{
  GtkWidget *window_main;
  GtkWidget *button_exit;
  gtk_init (&argc, &argv);
  window_main = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  button_exit = gtk_button_new_with_label ("Exit");

  gtk_window_set_title (GTK_WINDOW (window_main), "Hello,Window！");
  gtk_window_set_default_size (GTK_WINDOW (window_main), 200, 200);
  gtk_container_add (GTK_CONTAINER (window_main), button_exit);

  g_signal_connect (G_OBJECT (button_exit), "clicked", G_CALLBACK (hello),
      "你点EXIT按钮关闭的！");
  g_signal_connect (G_OBJECT (window_main), "delete_event",
      G_CALLBACK (hello2), "你点的窗口按钮关闭的！");

  gtk_widget_show_all (window_main);

  gtk_main ();

  return 0;
}
</code>