GtkWidget *gtk_dialog_new(void)

#include<gtk/gtk.h>

void make_dialog()
{
GtkWidget *dialog;
GtkWidget *label;
GtkWidget *button;
GtkWidget *vbox;
GtkWidget *hbox;

dialog = gtk_dialog_new();

/*向对话框中加入一个文本标签*/
vbox = GTK_DIALOG(dialog)->vbox;
label = gtk_label_new("This is a dialog");
gtk_box_pack_start(GTK_BOX(vbox),label,TRUE,TRUE,30);

/*向对话框中加入两个按钮*/
hbox = GTK_DIALOG(dialog)->action_area;
button = gtk_button_new_with_label("yes");
gtk_box_pack_start(GTK_BOX(hbox),button,FALSE,FALSE,0);
button = gtk_button_new_with_label("no");
gtk_box_pack_start(GTK_BOX(hbox),button,FALSE,FALSE,0);

gtk_widget_show_all(dialog);
}

void hello(GtkWidget *widget,gpointer *data)
{
make_dialog();
}

int main(int argc,char **argv)
{
GtkWidget *window;
GtkWidget *button;

gtk_init(&argc,&argv);

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(GTK_OBJECT(window),"destroy",
GTK_SIGNAL_FUNC(gtk_main_quit),NULL);
gtk_container_border_width(GTK_CONTAINER(window),20);

button = gtk_button_new_with_label("Hello World");
g_signal_connect(GTK_OBJECT(button),"clicked",
GTK_SIGNAL_FUNC(hello),"I am from button");

gtk_container_add(GTK_CONTAINER(window),button);
gtk_widget_show(button);
gtk_widget_show(window);

gtk_main();

return 0;
}