GTK？

#include <gtk/gtk.h>

static void on_activate(GtkApplication* app, gpointer user_data) {
GtkWidget *window;
GtkWidget *button;

// 创建一个新窗口
window = gtk_application_window_new(app);
gtk_window_set_title(GTK_WINDOW(window), "Hello GTK");
gtk_window_set_default_size(GTK_WINDOW(window), 400, 400);

// 创建一个按钮并添加到窗口
button = gtk_button_new_with_label("我是一个按钮!");
gtk_container_add(GTK_CONTAINER(window), button);

// 显示窗口和按钮
gtk_widget_show_all(window);
}

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

// 创建一个新的GTK应用程序
app = gtk_application_new("com.test.GtkApplication", G_APPLICATION_FLAGS_NONE);
g_signal_connect(app, "activate", G_CALLBACK(on_activate), NULL);

// 运行应用程序
status = g_application_run(G_APPLICATION(app), argc, argv);

// 释放应用程序对象
g_object_unref(app);

return status;
}