How do I read from a version resource in Visual C++

Question

I have a version resource in my resources in a C++ project which contains version number, copyright and build details. Is there an easy way to access this at run-time to populate my help/about dialog as I am currently maintaining seperate const values of this information. Ideally, the solution should work for Windows/CE mobile and earlier versions of Visual C++ (6.0 upwards).

Answer 1

This is an edited version of my original answer.

bool GetProductAndVersion(CStringA & strProductName, CStringA & strProductVersion) {     // get the filename of the executable containing the version resource     TCHAR szFilename[MAX_PATH + 1] = {0};     if (GetModuleFileName(NULL, szFilename, MAX_PATH) == 0)     {         TRACE("GetModuleFileName failed with error %d\n", GetLastError());         return false;     }      // allocate a block of memory for the version info     DWORD dummy;     DWORD dwSize = GetFileVersionInfoSize(szFilename, &dummy);     if (dwSize == 0)     {         TRACE("GetFileVersionInfoSize failed with error %d\n", GetLastError());         return false;     }     std::vector<BYTE> data(dwSize);      // load the version info     if (!GetFileVersionInfo(szFilename, NULL, dwSize, &data[0]))     {         TRACE("GetFileVersionInfo failed with error %d\n", GetLastError());         return false;     }      // get the name and version strings     LPVOID pvProductName = NULL;     unsigned int iProductNameLen = 0;     LPVOID pvProductVersion = NULL;     unsigned int iProductVersionLen = 0;      // replace "040904e4" with the language ID of your resources     if (!VerQueryValue(&data[0], _T("\\StringFileInfo\\040904e4\\ProductName"), &pvProductName, &iProductNameLen) ||         !VerQueryValue(&data[0], _T("\\StringFileInfo\\040904e4\\ProductVersion"), &pvProductVersion, &iProductVersionLen))     {         TRACE("Can't obtain ProductName and ProductVersion from resources\n");         return false;     }      strProductName.SetString((LPCSTR)pvProductName, iProductNameLen);     strProductVersion.SetString((LPCSTR)pvProductVersion, iProductVersionLen);      return true; } 

Answer 2

To get a language independent result to Mark's answer change :

   // replace "040904e4" with the language ID of your resources     !VerQueryValue(&data[0], _T("\\StringFileInfo\\040904e4\\ProductVersion"), &pvProductVersion, &iProductVersionLen)) {     TRACE("Can't obtain ProductName and ProductVersion from resources\n");     return false; } 

To

UINT                uiVerLen = 0; VS_FIXEDFILEINFO*   pFixedInfo = 0;     // pointer to fixed file info structure // get the fixed file info (language-independent)  if(VerQueryValue(&data[0], TEXT("\\"), (void**)&pFixedInfo, (UINT *)&uiVerLen) == 0) {     return false; }   strProductVersion.Format("%u.%u.%u.%u",      HIWORD (pFixedInfo->dwProductVersionMS),     LOWORD (pFixedInfo->dwProductVersionMS),     HIWORD (pFixedInfo->dwProductVersionLS),     LOWORD (pFixedInfo->dwProductVersionLS));