说明：  Qt3、Qt4 托盘程序 由于Qt对不同平台的托盘需要不同的写法，国外网上流传着Qt3的托盘程序的多个平台实 现程序的源码，但其源码并不能直接拿来就用，使得初学者陷入困惑之中，而且感觉很多朋友对源码的交流是有保留的，至少对代码没有一定阅读能力和对编译报错 没有足够的理解经验的朋友来说是这样的。 我也不再另外提供Qt3的托盘源码，以下提供下载的Qt4托盘源码已经包含了国外开源爱好者提供的Qt3--win平台和linux平台的托盘源码，不能直接用来编译的原因是trayicon.h有个很小的错误，请把TrayIconPrivate声明为public。
(Qt3, Qt4 Tray Program Because Qt on different platforms require different writing tray, foreign online circulating Qt3 tray program multiple platform program source code, but the Its source code and can not be directly brought on the use made into confusion among beginners, but also feel a lot of friends on the source of the communication is qualified, at least The code does not necessarily reading ability and to compile Baocuo do not have enough experience to understand a friend is like that. I am not going to provide another source Qt3 tray, the following source code available for download Qt4 tray contains the foreign open-source enthusiasts have been provided by the Qt3- win Platform and linux platform, tray source code, can not directly be used to compile because of trayicon.h have a very small error, please TrayIconPrivate declared to be public.)