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Editorial Team
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Asked: 2026-06-12T06:51:00+00:00

I have something like this: if(GetFileAttributesW(C:\\Directory)!=INVALID_FILE_ATTRIBUTES) {…} I get error: cannot convert ‘const char*’

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I have something like this:

if(GetFileAttributesW("C:\\Directory")!="INVALID_FILE_ATTRIBUTES") {...}

I get error: cannot convert ‘const char*’ to ‘const WCHAR*’ for argument ‘1’ to ‘DWORD GetFileAttributesW(const WCHAR*)’

How to convert const char* to const WCHAR*?

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1 Answer

  1. Editorial Team

    Don’t use GetFileAttributesW, use GetFileAttributes. Add _T to all const strings, and use _TCHAR*. And INVALID_FILE_ATTRIBUES is definitely not a string…

    if(GetFileAttributes(_T("C:\\Directory"))!= INVALID_FILE_ATTRIBUTES ) 
 {...}

    See Unicode Programming Summary.

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