c - gtk+ v3 将控制权返回给 main 进行重绘

Question

我在名为 check_pwd 的函数中有一段代码可以执行以下操作:

if(g_strcmp0(s1,s2) != 0){
   gtk_label_set_text(GTK_LABEL(a), "error");
   return -1;
}
else{
   gtk_label_set_text(GTK_LABEL(a), "ok");
   //other things
}

虽然由于程序将控制权返回到主函数而显示“错误”消息，但如何显示“确定”消息？

Answer 1

当然，只需运行主循环:

while(gtk_events_pending())
  gtk_main_iteration();

See the GTK+ documentation ，其中推荐上述内容:

Checks if any events are pending.

This can be used to update the UI and invoke timeouts etc. while doing some time intensive computation.