gtk_window_new中的段错误

Question

我有一个用C编写的简单GTK应用程序，在window = gtk_window_new(GTK_WINDOW_TOPLEVEL)行上存在段错误

这里是代码：

#include <gtk/gtk.h>

int main(int argc, char **argv) {
    GtkApplication *app = NULL;
    GtkWidget *window = NULL;
    app = gtk_application_new("com.github.Toothless204", G_APPLICATION_FLAGS_NONE);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

    gtk_application_add_window(app, GTK_WINDOW(window));
    int status = g_application_run(G_APPLICATION(app), argc, argv);

    g_object_unref(app);
    return status;
}

我已经四处搜寻以寻找答案，但没有发现任何实际上可以解决问题的答案

Answer 1

问题：尝试在GtkApplication调用GTK +初始化函数之前创建一个窗口。

使用GTK +之前，您需要对其进行初始化。https://developer.gnome.org/gtk3/stable/gtk3-General.html

#include <gtk/gtk.h>

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

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_widget_show (window);

    g_signal_connect (window, "destroy",
        G_CALLBACK (gtk_main_quit), NULL);

    gtk_main();
    return 0;
}

出于相同的原因，必须在发出GApplication'启动'信号后添加GtkApplication窗口。https://wiki.gnome.org/HowDoI/GtkApplication

#include <gtk/gtk.h>

static void activate (GApplication *app, gpointer user_data) {
    GtkWidget *window;

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_application_add_window(GTK_APPLICATION(app), GTK_WINDOW(window));
    gtk_widget_show (window);
}

int main (int argc, char **argv) {
    GtkApplication *app;
    int status;

    app = gtk_application_new ("com.github.Toothless204", G_APPLICATION_FLAGS_NONE);
    g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
    status = g_application_run (G_APPLICATION (app), argc, argv);

    g_object_unref (app);
    return status;
}