说明：   Delphi中向TDBGrid添加组件是一件十分麻烦的事情。笔者在这里向大家介绍一种利用WIN32 API函数在TDBGRID中嵌入CHECKBOX组件的方法。
(Delphi to add components to the TDBGrid is a very troublesome thing. I here to tell you about a using WIN32 API function in TDBGRID embedded CHECKBOX components.)