love in C++, live on MFC

遇到好幾個人說CMap在用CString做key類型時(shí)有問題，說用int和DWORD就可以，用CString就不行。因此很多人推薦使用MFC中的CMapStringToPtr之類。

看下面的代碼：
//.h
????CMap<CString, LPCTSTR, int, int> typeMap;
//.cpp
????typeMap.SetAt(_T("ONE"),1);
????typeMap.SetAt(_T("TWO"),2);

????int nValue = 0;
????BOOL ret = typeMap.Lookup(_T("ONE"), nValue);
????ret = typeMap.Lookup(_T("THREE"), nValue);
????ret = typeMap.Lookup(_T("TWO"), nValue);
我的代碼運(yùn)行的很好，我覺得關(guān)鍵是ARG_KEY要選LPCTSTR

windows里面,文件名的命名規(guī)則:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/naming_a_file.asp

按照這個規(guī)則,有人寫了一個函數(shù):
http://www.codeproject.com/file/isvalidfilename.asp

MS為什么不提供一個這樣的函數(shù)呢?

TransparentBlt,
But I think you should look at http://support.microsoft.com/default.aspx?scid=kb;en-us;79212 before you use this function.

And I really recommand you look at http://www.winprog.net/tutorial/transparency.html , it's cool.