Possible Duplicate:
How do you check if a directory exists on Windows in C?
How do I check whether a directory exists using C++ and windows API?
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Maybe you can show what you have so far – César Nov 22 '11 at 21:11
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why not just do =========> BOOL PathFileExists(pszPath); <========= as show in msdn.microsoft.com/en-us/library/windows/desktop/… ? – Fractal Jun 27 '16 at 19:40
well we were all n0obs at some point in time. No problem in asking. Here is a simple function which does exactly this :
#include <windows.h>
#include <string>
bool dirExists(const std::string& dirName_in)
{
DWORD ftyp = GetFileAttributesA(dirName_in.c_str());
if (ftyp == INVALID_FILE_ATTRIBUTES)
return false; //something is wrong with your path!
if (ftyp & FILE_ATTRIBUTE_DIRECTORY)
return true; // this is a directory!
return false; // this is not a directory!
}
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8
GetFileAttributes()returnsINVALID_FILE_ATTRIBUTESwhen a failure occurs. You have to useGetLastError()to find out what that failure actually is. If it returnsERROR_PATH_NOT_FOUND,ERROR_FILE_NOT_FOUND,ERROR_INVALID_NAME, orERROR_BAD_NETPATHthen it really does not exist. But if it returns most any other error, then something actually exists at the specified path but the attributes are simply not accessible. – Remy Lebeau Dec 18 '12 at 2:10 -
3For those stumbling on this answer, keep in mind that the above code is ANSI not Unicode. For modern Unicode, it's better to take a LPCTSTR parameter such as the snippet in this other stackoverflow answer: stackoverflow.com/a/6218445. (The LPCTSTR will be translated to
wchar_t*by the compiler.). You can then wrap that Unicode-aware function to take a C++std::wstringinstead ofstd::string. – JasDev Sep 3 '15 at 10:17
If linking to the shell Lightweight API (shlwapi.dll) is ok for you, you can use the PathIsDirectory function
answered Nov 22 '11 at 21:23
This code might work:
//if the directory exists
DWORD dwAttr = GetFileAttributes(str);
if(dwAttr != 0xffffffff && (dwAttr & FILE_ATTRIBUTE_DIRECTORY)) 
0.1 second Google search:
BOOL DirectoryExists(const char* dirName) {
DWORD attribs = ::GetFileAttributesA(dirName);
if (attribs == INVALID_FILE_ATTRIBUTES) {
return false;
}
return (attribs & FILE_ATTRIBUTE_DIRECTORY);
}