Get VersionInfo from resource file

CVersionInfo is a tiny class, which wraps the stuff needed to get the version info from a resource file. It handles both, the fixed version information and the language dependent string version information of the resource file. It contains three CString members which hold the retrieved information:

    m_strFixedFileVersion:  the fixed file version info (language independent)
    m_strFixedProductVersion: the fixed product version info (language independent)
    m_strVersionInfo:   the desired version info string (language dependent)

To get the language dependent string version info you need to set the following parameters as follows:

strLangID:

strInfoType:

hModule:

Important!

Here's the code:

 
// VersionInfo.h 
 
#ifndef VERSIONINFO_H
#define VERSIONINFO_H 
#include "stdafx.h"
class CVersionInfo
{
public:
	CString m_strVersionInfo;
	CString m_strFixedFileVersion;
	CString m_strFixedProductVersion;
	CVersionInfo ();
	~CVersionInfo ();
	CVersionInfo (HMODULE hModule, LPCTSTR strLangID = NULL, LPCTSTR strInfoType = NULL);
	CVersionInfo (LPTSTR szFilename, LPCTSTR strLangID = NULL, LPCTSTR strInfoType = NULL);
	void GetVersionInfo (LPTSTR szFilename, LPCTSTR strLangID = NULL, LPCTSTR strInfoType = NULL);
	void GetVersionInfo (HMODULE hModule, LPCTSTR strLangID = NULL, LPCTSTR strInfoType = NULL);
}; 

#endif // VERSIONINFO_H
 
// VersionInfo.cpp
 
//**********************************************************************************************
// CVersionInfo (c)1997 Roberto Rocco 
//----------------------------------------------------------------------------------------------
// CVersionInfo is a tiny class, which wraps the stuff needed to get the version info from a
// resource file.
// It handles both, the fixed version information and the language dependent string version
// information of the resource file.
//
// It contains three CString members which hold the retrieved information:
// m_strFixedFileVersion:  the fixed file version info (language independent)
// m_strFixedProductVersion: the fixed product version info (language independent)
// m_strVersionInfo:   the desired version info string (language dependent)
//
// CVersionInfo requires to be linked with VERSION.LIB!
//
//********************************************************************************************** 
#include "VersionInfo.h"
// Standard-Constructor. Does nothing particular
CVersionInfo::CVersionInfo ()
{
} 

// Standard-Destructor. Does nothing particular
CVersionInfo::~CVersionInfo ()
{
} 

// Constructor with hModule, strLangId and strInfoType as parameter
CVersionInfo::CVersionInfo (HMODULE hModule, LPCTSTR strLangID/*=NULL*, LPCTSTR strInfoType/*=NULL*)
{
	GetVersionInfo (hModule, strLangID, strInfoType);
}
 
// Constructor with szFilename, strLangId and strInfoType as parameter
CVersionInfo::CVersionInfo (LPTSTR szFilename, LPCTSTR strLangID/*=NULL*, LPCTSTR strInfoType/*=NULL*)
{
	GetVersionInfo (szFilename, strLangID, strInfoType);
}

void CVersionInfo::GetVersionInfo (HMODULE hModule, LPCTSTR strLangID/*=NULL*, LPCTSTR strInfoType/*=NULL*)
{
	TCHAR szExeName[MAX_PATH];  
	if(hModule == NULL) 
		  return;  
	GetModuleFileName(hModule, szExeName, sizeof (szExeName)); 
	GetVersionInfo(szExeName, strLangID, strInfoType); 
} 

//**********************************************************************************************
// GetVersionInfo (requires VERSION.LIB!!!)
//----------------------------------------------------------------------------------------------
// Retrieves the desired version entry from the VERSIONINFO structure of the resource file.
//
// strLangID is the language ID for which the version info is desired
// 040904E4 means e.g.:
// 04------        = SUBLANG_ENGLISH_USA
// --09----        = LANG_ENGLISH
// ----04E4 = 1252 = Codepage for Windows:Multilingual
//
// strInfoType  is the desired version entry, eg.:"ProductName", or "ProductVersion"
//
// hModule ist the Instance handle of the module for which the version info should be retrieved
// with EXE's: Get hModule calling AfxGetInstanceHandle.
// with DLL's: Get hModule calling  ::GetModuleHandle ("DLLName"), where "DLLName" is the Name of the module
//
// the version information is stored in the member variables:
// m_strFixedFileVersion, m_strFixedProductVersion and m_strVersionInfo, where:
// m_strFixedFileVersion and m_strFixedProductVersion contain the fixed version info (language independent) and
// m_strVersionInfo contains the desired version info string (language dependent)
//
//**********************************************************************************************
void CVersionInfo::GetVersionInfo (LPTSTR szFilename, LPCTSTR strLangID/*=NULL*, LPCTSTR strInfoType/*=NULL*)
{
	DWORD dwVerInfoSize;
	DWORD dwHnd;
	void* pBuffer; 
	VS_FIXEDFILEINFO *pFixedInfo; // pointer to fixed file info structure
	LPVOID  lpVersion;    // String pointer to 'version' text
	UINT    uVersionLen;   // Current length of full version string
	TCHAR szGetName[500]; 
	 dwVerInfoSize = GetFileVersionInfoSize(szFilename, &dwHnd); 
	 if (dwVerInfoSize) 
	{ 
		  pBuffer = malloc(dwVerInfoSize); 
		  if (pBuffer == NULL)
			   return; 
		  GetFileVersionInfo(szFilename, dwHnd, dwVerInfoSize, pBuffer); 
		  // get the fixed file info (language-independend) 
		  VerQueryValue(pBuffer,_T("\\"),(void**)&pFixedInfo,(UINT *)&uVersionLen);  
		  m_strFixedProductVersion.Format ("%u,%u,%u,%u", HIWORD (pFixedInfo->dwProductVersionMS),
			              LOWORD (pFixedInfo->dwProductVersionMS),
			              HIWORD (pFixedInfo->dwProductVersionLS),
			              LOWORD (pFixedInfo->dwProductVersionLS)); 
		  m_strFixedFileVersion.Format ("%u,%u,%u,%u",HIWORD (pFixedInfo->dwFileVersionMS),
			             LOWORD (pFixedInfo->dwFileVersionMS),
			             HIWORD (pFixedInfo->dwFileVersionLS),
			             LOWORD (pFixedInfo->dwFileVersionLS)); 
		  // get the string file info (language-dependend) 
		  if (strLangID != NULL || strInfoType != NULL)
		  {
			   lstrcpy(szGetName, "\\StringFileInfo\\");  
			   lstrcat (szGetName, strLangID);
			   lstrcat (szGetName, "\\");
			   lstrcat (szGetName, strInfoType);
			   // copy version info, if desired entry exists
			   if (VerQueryValue(pBuffer,szGetName,(void**)&lpVersion,(UINT *)&uVersionLen) != 0)
				    m_strVersionInfo = (LPTSTR)lpVersion;
		  } 
		  if (pBuffer != NULL)
			   free(pBuffer); 
	} 
}