I need to get the product version and file version for a DLL or EXE file using Win32 native APIs in C or C++. I'm not looking for the Windows version, but the version numbers that you see by right-clicking on a DLL file, selecting "Properties", then looking at the "Details" tab. This is usually a four-part dotted version number x.x.x.x.
6 Answers
You would use the GetFileVersionInfo API.
See Using Version Information on the MSDN site.
Sample:
DWORD verHandle = 0;
UINT size = 0;
LPBYTE lpBuffer = NULL;
DWORD verSize = GetFileVersionInfoSize( szVersionFile, &verHandle);
if (verSize != NULL)
{
LPSTR verData = new char[verSize];
if (GetFileVersionInfo( szVersionFile, verHandle, verSize, verData))
{
if (VerQueryValue(verData,"\\",(VOID FAR* FAR*)&lpBuffer,&size))
{
if (size)
{
VS_FIXEDFILEINFO *verInfo = (VS_FIXEDFILEINFO *)lpBuffer;
if (verInfo->dwSignature == 0xfeef04bd)
{
// Doesn't matter if you are on 32 bit or 64 bit,
// DWORD is always 32 bits, so first two revision numbers
// come from dwFileVersionMS, last two come from dwFileVersionLS
TRACE( "File Version: %d.%d.%d.%d\n",
( verInfo->dwFileVersionMS >> 16 ) & 0xffff,
( verInfo->dwFileVersionMS >> 0 ) & 0xffff,
( verInfo->dwFileVersionLS >> 16 ) & 0xffff,
( verInfo->dwFileVersionLS >> 0 ) & 0xffff
);
}
}
}
}
delete[] verData;
}
You get this information using the version information APIs. Here is a sample:
void PrintFileVersion( TCHAR *pszFilePath )
{
DWORD dwSize = 0;
BYTE *pbVersionInfo = NULL;
VS_FIXEDFILEINFO *pFileInfo = NULL;
UINT puLenFileInfo = 0;
// Get the version information for the file requested
dwSize = GetFileVersionInfoSize( pszFilePath, NULL );
if ( dwSize == 0 )
{
printf( "Error in GetFileVersionInfoSize: %d\n", GetLastError() );
return;
}
pbVersionInfo = new BYTE[ dwSize ];
if ( !GetFileVersionInfo( pszFilePath, 0, dwSize, pbVersionInfo ) )
{
printf( "Error in GetFileVersionInfo: %d\n", GetLastError() );
delete[] pbVersionInfo;
return;
}
if ( !VerQueryValue( pbVersionInfo, TEXT("\\"), (LPVOID*) &pFileInfo, &puLenFileInfo ) )
{
printf( "Error in VerQueryValue: %d\n", GetLastError() );
delete[] pbVersionInfo;
return;
}
// pFileInfo->dwFileVersionMS is usually zero. However, you should check
// this if your version numbers seem to be wrong
printf( "File Version: %d.%d.%d.%d\n",
( pFileInfo->dwFileVersionLS >> 24 ) & 0xff,
( pFileInfo->dwFileVersionLS >> 16 ) & 0xff,
( pFileInfo->dwFileVersionLS >> 8 ) & 0xff,
( pFileInfo->dwFileVersionLS >> 0 ) & 0xff
);
// pFileInfo->dwProductVersionMS is usually zero. However, you should check
// this if your version numbers seem to be wrong.
printf( "Product Version: %d.%d.%d.%d\n",
( pFileInfo->dwProductVersionLS >> 24 ) & 0xff,
( pFileInfo->dwProductVersionLS >> 16 ) & 0xff,
( pFileInfo->dwProductVersionLS >> 8 ) & 0xff,
( pFileInfo->dwProductVersionLS >> 0 ) & 0xff
);
}
Found these articles...sorry, but I don't have direct experience with how to do this using native APIs, so I deferred to an Internet search:
- C++: Determining the version number of a DLL or Executable
- VB (probably version 6): How to Use Functions in VERSION.DLL
Hope these help!
The easiest way is to use the GetFileVersionInfoEx or GetFileVersionInfo API functions.
You can also do it from within your application resources as explained here.
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