GetFileTitleA function (commdlg.h)

Article
02/09/2023

Retrieves the name of the specified file.

Syntax

short GetFileTitleA(
  [in]  LPCSTR unnamedParam1,
  [out] LPSTR  Buf,
  [in]  WORD   cchSize
);

Parameters

[in] unnamedParam1

Type: LPCTSTR

The name and location of a file.

[out] Buf

Type: LPTSTR

The buffer that receives the name of the file.

[in] cchSize

Type: WORD

The length, in characters, of the buffer pointed to by the lpszTitle parameter.

Return value

Type: short

If the function succeeds, the return value is zero.

If the file name is invalid, the return value is unknown. If there is an error, the return value is a negative number.

If the buffer pointed to by the lpszTitle parameter is too small, the return value is a positive integer that specifies the required buffer size, in characters. The required buffer size includes the terminating null character.

Remarks

GetFileTitle should only be called with legal file names; using an illegal file name has an undefined result.

To get the buffer size needed for the name of a file, call the function with lpszTitle set to NULL and cchSize set to zero. The function returns the required size.

GetFileTitle returns the string that the system would use to display the file name to the user. The display name includes an extension only if that is the user's preference for displaying file names. This means that the returned string may not accurately identify the file if it is used in calls to file system functions.

If the lpszTitle buffer is too small, GetFileTitle returns the size required to hold the display name. However, there is no guaranteed relationship between the required size and the characters originally specified in the lpszFile buffer. For example, do not call GetFileTitle with lpszTitle set to NULL and cchSize set to zero, and then try to use the return value as an index into the lpszFile string. You can usually achieve similar results (and superior performance) with C run-time library functions such as strrchr, wcsrchr, and _mbsrchr.

Note

The commdlg.h header defines GetFileTitle as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	commdlg.h (include Windows.h)
Library	Comdlg32.lib
DLL	Comdlg32.dll
API set	ext-ms-win-shell-comdlg32-l1-1-1 (introduced in Windows 10, version 10.0.14393)