Convert CString to const char

Question

How do I convert from CString to const char  in my Unicode MFC application

User · Answer

I had a similar problem   I had a char  buffer with the  so name in it  I could not convert the char  variable to LPCTSTR   Here s how I got around it     char  fNam      LPCSTR nam   fNam  dll   LoadLibraryA nam

User · Answer

There is an explicit cast on CString to LPCTSTR  so you can do  provided unicode is not specified    CString str          const char  cstr    LPCTSTR str

User · Answer

I used this conversion  CString cs    quot TEST quot   char  c   cs GetBuffer m ncs me GetLength     I hope this is useful

User · Answer

To convert a TCHAR CString to ASCII  use the CT2A macro - this will also allow you to convert the string to UTF8  or any other Windows code page       Convert using the local code page CString str  T  Hello  world      CT2A ascii str   TRACE  T  ASCII   S n    ascii m psz       Convert to UTF8 CString str  T  Some Unicode goodness     CT2A ascii str  CP UTF8   TRACE  T  UTF8   S n    ascii m psz       Convert to Thai code page CString str  T  Some Thai text     CT2A ascii str  874   TRACE  T  Thai   S n    ascii m psz     There is also a macro to convert from ASCII -  Unicode  CA2T  and you can use these in ATL WTL apps as long as you have VS2003 or greater   See the MSDN for more info

User · Answer

If your CString is Unicode  you ll need to do a conversion to multi-byte characters  Fortunately there is a version of CString which will do this automatically   CString unicodestr    T  Testing    CStringA charstr unicodestr   DoMyStuff  const char    charstr

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Generic Conversion Macros  TN059 Other Considerations section is important    A2CW      LPCSTR   - gt   LPCWSTR    A2W       LPCSTR   - gt   LPWSTR    W2CA      LPCWSTR  - gt   LPCSTR    W2A       LPCWSTR  - gt   LPSTR      TN059  Using MFC MBCS Unicode Conversion Macros

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I recommendo to you use TtoC from ConvUnicode h  const CString word   hello   const char  myFile   TtoC path GetString       It is a macro to do conversions per Unicode

User · Answer

Note  This answer predates the Unicode requirement  see the comments   Just cast it   CString s  const TCHAR  x    LPCTSTR  s    It works because CString has a cast operator to do exactly this   Using TCHAR makes your code Unicode-independent  if you re not concerned about Unicode you can simply use char instead of TCHAR

[c++] Convert CString to const char*

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