How to get a version of the embedded IE ActiveX control? - c++

Question

I've just embedded an IE/web browser ActiveX control in my C++ (MFC) application. And I'm curious how do I get the version of IE used for it?

Answer 1

This is sort of a hack, but you can use mshtml.dll that is an integral part of any IE control, and retrieve its version. Next is the code snippet from one of my projects:
#define SIZEOF(f) (sizeof(f) / sizeof(f[0]))
HMODULE hModMshtl = ::GetModuleHandle(L"mshtml.dll");
if(hModMshtl)
{
TCHAR buffMshtl[MAX_PATH];
buffMshtl[0] = 0;
::GetModuleFileName(hModMshtl, buffMshtl, SIZEOF(buffMshtl));
buffMshtl[SIZEOF(buffMshtl) - 1] = 0;
CString strProdName;
VS_FIXEDFILEINFO vi;
if(GetFileVersionAndProductName(buffMshtl, &vi, &strProdName))
{
//Got it
_tprintf(L"%s v.%d.%d.%d.%d",
strProdName.GetString(),
(DWORD)((vi.dwProductVersionLS & 0xFFFF0000) >> 16),
(DWORD)(vi.dwProductVersionLS & 0xFFFF),
(DWORD)((vi.dwProductVersionMS & 0xFFFF0000) >> 16),
(DWORD)(vi.dwProductVersionMS & 0xFFFF)
);
}
}
and here's how you can get its version:
BOOL GetFileVersionAndProductName(LPCTSTR pFilePath, VS_FIXEDFILEINFO* pOutVersionInfo, CString* pOutProductName)
{
BOOL bRes = FALSE;
CString strFilePath = pFilePath;
LPCTSTR pDescBuf = NULL;
struct LANGANDCODEPAGE {
WORD wLanguage;
WORD wCodePage;
};
CString strProdName;
BYTE* pData = NULL;
if(!strFilePath.IsEmpty())
{
//Get size needed
DWORD dwDummy;
DWORD dwSz = ::GetFileVersionInfoSize((LPTSTR)strFilePath.GetString(), &dwDummy);
if(dwSz > 0)
{
//Reserve mem
pData = new (std::nothrow)BYTE[dwSz];
if(pData)
{
//Retrieve version info
if(::GetFileVersionInfo((LPTSTR)strFilePath.GetString(), NULL, dwSz, pData))
{
UINT nczBufLn;
VS_FIXEDFILEINFO* pVi = NULL;
if(VerQueryValue(pData, _T("\\"), (VOID**)&pVi, &nczBufLn))
{
if(pVi &&
nczBufLn >= sizeof(*pVi) &&
pVi->dwSignature == 0xFEEF04BD)
{
//Got it
bRes = TRUE;
if(pOutVersionInfo)
*pOutVersionInfo = *pVi;
}
}
struct LANGANDCODEPAGE
{
WORD wLanguage;
WORD wCodePage;
} *lpTranslate = NULL;
// Read the list of languages and code pages.
UINT cbTranslate;
if(VerQueryValue(pData, L"\\VarFileInfo\\Translation", (LPVOID*)&lpTranslate, &cbTranslate))
{
//Get first language
if(lpTranslate &&
cbTranslate >= sizeof(*lpTranslate))
{
//Retrieve product name
CString strBlock;
strBlock.Format(L"\\StringFileInfo\\%04x%04x\\ProductName",
lpTranslate[0].wLanguage,
lpTranslate[0].wCodePage);
UINT dwProdLn = 0;
VOID* lpBufferName = NULL;
if(VerQueryValue(pData, strBlock, &lpBufferName, &dwProdLn))
{
//Get name
memcpy(strProdName.GetBufferSetLength(dwProdLn), lpBufferName, dwProdLn * sizeof(TCHAR));
strProdName.ReleaseBuffer();
}
}
}
}
}
}
}
if(pOutProductName)
*pOutProductName = strProdName;
//Free mem
if(pData)
delete[] pData;
return bRes;
}