如何在GTK3 (C语言)中切换窗口

Question

我有一个应用程序，作为一个点，打开一个新的窗口，并工作良好。

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然后在我做完这件事后，我需要切换回主窗口。

我知道我需要这个功能：

gtk_widget_hide();

但是我不知道如何隐藏主窗口，只打印第二个窗口，然后单击第二个窗口中的按钮返回第一个窗口。

到目前为止，这就是我所拥有的：

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

static void crete_new_wind (GtkWidget *widget);
gboolean destroy (GtkWidget *window);

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

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), "First Window");
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);
    gtk_widget_set_size_request (window, 300, 300);
    gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);

    button = gtk_button_new_with_label ("Go to Window B");
    g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK (crete_new_wind), (gpointer) window);

    box = gtk_box_new (TRUE, 1);
    gtk_box_pack_end (GTK_BOX (box), button, TRUE, TRUE, 1);
    gtk_container_add (GTK_CONTAINER (window), box);

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

void crete_new_wind (GtkWidget *widget){
    GtkWidget *window, *button, *box;

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), "Second Window");
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);
    gtk_widget_set_size_request (window, 300, 300);
    gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);;
    g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (destroy), widget);

    button = gtk_button_new_with_label ("Go back to Window A");
    g_signal_connect (G_OBJECT (button), "destroy", G_CALLBACK (destroy), NULL);
    gtk_widget_hide(widget);

    box = gtk_box_new (TRUE, 1);
    gtk_box_pack_end (GTK_BOX (box), button, TRUE, TRUE, 1);
    gtk_container_add (GTK_CONTAINER (window), box);
    gtk_widget_show_all (window);
}

gboolean destroy (GtkWidget *widget){
    gtk_widget_destroy (widget);
    return TRUE;
}

如果我单击该按钮(转到窗口B)，我将得到以下内容：

​

​

但是主窗口仍然在那里，对用户来说这不是我所需要的。

Answer 1

那是因为clicked回调想要两个参数

将原型和函数更改为

static void crete_new_wind(GtkButton *dummy, gpointer widget);

static void crete_new_wind(GtkButton *dummy, gpointer widget) {

以便在函数中使用第二个参数。