【转】TComponentState详解
http://blog.sina.com.cn/s/blog_44fa172f0102vjmq.html
delphi TComponent类 2
http://blog.csdn.net/lailai186/article/details/7442385
TForm1 TForm TCustomForm TScrollingWinControl TWinControl TControl
2017.02.26待看
原文：http://www.cnblogs.com/chuangyiyuan/p/6444989.html
