1. windows消息WM_
2. WM_NULL = $0000;
3. WM_CREATE = $0001;
4. 应用程序创建一个窗口
5. WM_DESTROY = $0002;
6. 一个窗口被销毁
7. WM_MOVE = $0003;
8. 移动一个窗口
9. WM_SIZE = $0005;
10. 改变一个窗口的大小
11. WM_ACTIVATE = $0006;
12. 一个窗口被激活或失去激活状态;
13. WM_SETFOCUS = $0007;
14. 获得焦点后
15. WM_KILLFOCUS = $0008;
16. 失去焦点
17. WM_ENABLE = $000A;
18. 改变enable状态
19. WM_SETREDRAW = $000B;
20. 设置窗口是否能重画
21. WM_SETTEXT = $000C;