Specific functions of uses_conversion in ATL

Specific functions of uses_conversion in ATL

From http://blog.csdn.net/xiaoxiongli/archive/2008/02/22/2113783.aspx

 

ATL: conversion macros are a convenient way to convert various character encodings. They are very useful in function calls. The name of the ATL conversion macro is the [Source Type] 2 [New Type] or [Source Type] 2C [New Type] named according to the following pattern. According to the second form, the macro conversion result is a constant pointer (corresponding to "C" in the name ").

to use these macros, you must first include the atlconv. h header file. You can even include this header file in a non-ATL project to use the macro defined in it, because this header file is independent of other parts of ATL and does not need a _ module global variable. When you use a conversion macro in a function, you need to put the uses_conversion macro at the beginning of the function. It defines some local variables required for macro conversion

Use in MFC to include afxconv. h
atlconv is used in ATL. h
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call uses_conversion. Then, you can use conversion macros such as ole2t.