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The GetFullPathName function retrieves the full path and filename of a specified file.

DWORD GetFullPathName(

LPCTSTR lpFileName, // address of name of file to find path for
DWORD nBufferLength, // size, in characters, of path buffer
LPTSTR lpBuffer, // address of path buffer
LPTSTR *lpFilePart // address of filename in path
);


Parameters

lpFileName

Points to a null-terminated string that specifies a valid filename. This string can use either short (the 8.3 form) or long filenames.

nBufferLength

Specifies the size, in characters, of the buffer for the drive and path.

lpBuffer

Points to a buffer that contains the null-terminated string for the name of the drive and path.

lpFilePart

Points to a variable that receives the address (in lpBuffer) of the final filename component in the path. This filename component is the long filename, if any, rather than the 8.3 form of the filename.



Return Values

If the GetFullPathName function succeeds, the return value is the length, in characters, of the string copied to lpBuffer, not including the terminating null character.
If the lpBuffer buffer is too small, the return value is the size of the buffer, in characters, required to hold the path.
If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The GetFullPathName function merges the name of the current drive and directory with the specified filename to determine the full path and filename of the specified file. It also calculates the address of the filename portion of the full path and filename. This function does not verify that the resulting path and filename are valid or that they refer to an existing file on the associated volume.

The GetCurrentDirectory function retrieves the current directory for the current process.

DWORD GetCurrentDirectory(

DWORD nBufferLength, // size, in characters, of directory buffer
LPTSTR lpBuffer // address of buffer for current directory
);


Parameters

nBufferLength

Specifies the length, in characters, of the buffer for the current directory string. The buffer length must include room for a terminating null character.

lpBuffer

Points to the buffer for the current directory string. This null-terminated string specifies the absolute path to the current directory.



Return Values

If the function succeeds, the return value specifies the number of characters written to the buffer, not including the terminating null character.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
If the buffer pointed to by lpBuffer is not large enough, the return value specifies the required size of the buffer, including the number of bytes necessary for a terminating null character.