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The GetFileVersionInfoSize function determines whether the operating system can obtain version information about a specified file. If version information is available, GetFileVersionInfoSize returns the size in bytes of that information.

Declare Function GetFileVersionInfoSize Lib "version.dll" Alias "GetFileVersionInfoSizeA" (ByVal lptstrFilename As String, lpdwHandle As Long) As Long


Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later


Parameter Information
- lptstrFilename
Pointer to a null-terminated filename string that specifies the file of interest.

- lpdwHandle
Pointer to a variable that the function sets to zero.

Return Values
If the function succeeds, the return value is the size in bytes of the file’s version information.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Last update: 07 April 2006