如何在创建文件时更新GTK GUI？

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

// 自定义信号的数据结构
typedef struct {
    GtkWidget *progress_bar;
} UpdateSignalData;

// 后台线程函数
void* create_file_in_thread(void *data) {
    // 模拟文件创建过程
    for (int i = 0; i <= 100; i++) {
        g_usleep(10000); // 模拟耗时操作
        UpdateSignalData *signal_data = (UpdateSignalData*)data;
        gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(signal_data->progress_bar), i / 100.0);
    }
    return NULL;
}

// 自定义信号处理函数
void on_file_created(GtkWidget *widget, gpointer data) {
    g_print("File created successfully!\n");
    gtk_widget_set_sensitive(widget, TRUE); // 重新启用按钮
}

int main(int argc, char *argv[]) {
    gtk_init(&argc, &argv);

    GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    GtkWidget *vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 5);
    GtkWidget *button = gtk_button_new_with_label("Create File");
    GtkWidget *progress_bar = gtk_progress_bar_new();

    gtk_container_add(GTK_CONTAINER(window), vbox);
    gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
    gtk_box_pack_start(GTK_BOX(vbox), progress_bar, TRUE, TRUE, 0);

    g_signal_connect(button, "clicked", G_CALLBACK(gtk_widget_set_sensitive), NULL);
    g_signal_connect(button, "clicked", G_CALLBACK(create_file_in_thread), &UpdateSignalData{progress_bar});
    g_signal_connect(button, "clicked", G_CALLBACK(on_file_created), NULL);

    gtk_widget_show_all(window);
    gtk_main();

    return 0;
}