CM_DESIGNHITTEST 消息指的什么？(50分)

CM_DESIGNHITTEST 消息指的什么？
另，好多Delphi Component Message　如：
CM_COLORCHANGED = CM_BASE + 13;
CM_FONTCHANGED = CM_BASE + 14;
CM_CURSORCHANGED = CM_BASE + 15;
CM_CTL3DCHANGED = CM_BASE + 16;
CM_PARENTCTL3DCHANGED = CM_BASE + 17;
CM_TEXTCHANGED = CM_BASE + 18;
CM_MOUSEENTER = CM_BASE + 19;
CM_MOUSELEAVE = CM_BASE + 20;
CM_MENUCHANGED = CM_BASE + 21;
CM_APPKEYDOWN = CM_BASE + 22;
CM_APPSYSCOMMAND = CM_BASE + 23;
CM_BUTTONPRESSED = CM_BASE + 24;
CM_SHOWINGCHANGED = CM_BASE + 25;
CM_ENTER = CM_BASE + 26;
CM_EXIT = CM_BASE + 27;
CM_DESIGNHITTEST = CM_BASE + 28;
CM_ICONCHANGED = CM_BASE + 29;
CM_WANTSPECIALKEY =。。。。。。。。
。。。。。
在那时可以找到相关资料！谢谢！

你要问什么？

[?]

我想问这个CM_DESIGNHITTEST message 是在什么触发的。

会不会是在设计期鼠标点击时触发？ 嘻嘻，我乱猜的哦

gz

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没人理，只好自己自力更生了，我自己一个个的去试！
结果我会在这里公布

gz

可以到：

http://www.delphibbs.com/delphibbs/dispq.asp?lid=597873

看看/

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谢谢各位！没想到事隔几月之后还有人回答。

我爱死你们了！[]