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////////////////////////////////////////////////////////////////
// 1998 Microsoft Systems Journal
// If this code works, it was written by Paul DiLascia.
// If not, I don't know who wrote it.
//
// CNGModuleVersion provides an easy way to get version info
// for a module.(DLL or EXE).
//
#include "StdAfx.h"
#include "NGModuleVersion.h"
CNGModuleVersion::CNGModuleVersion()
{
m_pVersionInfo = NULL; // raw version info data
}
//////////////////
// Destroy: delete version info
//
CNGModuleVersion::~CNGModuleVersion()
{
delete [] m_pVersionInfo;
}
//////////////////
// Get file version info for a given module
// Allocates storage for all info, fills "this" with
// VS_FIXEDFILEINFO, and sets codepage.
//
// Modified to give App version info by default if modulename is NULL (AJM 21/4/99)
BOOL CNGModuleVersion::GetFileVersionInfo(LPCTSTR modulename /*= NULL */)
{
CString sModule = modulename;
if (sModule.IsEmpty())
{
LPTSTR pszName = sModule.GetBuffer(_MAX_PATH);
::GetModuleFileName(AfxGetApp()->m_hInstance, pszName, _MAX_PATH);
sModule.ReleaseBuffer();
}
m_translation.charset = 1252; // default = ANSI code page
memset((VS_FIXEDFILEINFO*)this, 0, sizeof(VS_FIXEDFILEINFO));
// get module handle
TCHAR filename[_MAX_PATH];
HMODULE hModule = ::GetModuleHandle(sModule);
if (hModule==NULL && !sModule.IsEmpty())
return FALSE;
// get module file name
DWORD len = GetModuleFileName(hModule, filename,
sizeof(filename)/sizeof(filename[0]));
if (len <= 0)
return FALSE;
// read file version info
DWORD dwDummyHandle; // will always be set to zero
len = GetFileVersionInfoSize(filename, &dwDummyHandle);
if (len <= 0)
return FALSE;
m_pVersionInfo = new BYTE[len]; // allocate version info
if (!::GetFileVersionInfo(filename, 0, len, m_pVersionInfo))
return FALSE;
LPVOID lpvi;
UINT iLen;
if (!VerQueryValue(m_pVersionInfo, _T("\\"), &lpvi, &iLen))
return FALSE;
// copy fixed info to myself, which am derived from VS_FIXEDFILEINFO
*(VS_FIXEDFILEINFO*)this = *(VS_FIXEDFILEINFO*)lpvi;
// Get translation info
if (VerQueryValue(m_pVersionInfo,
"\\VarFileInfo\\Translation", &lpvi, &iLen) && iLen >= 4) {
m_translation = *(TRANSLATION*)lpvi;
TRACE("code page = %d\n", m_translation.charset);
}
return dwSignature == VS_FFI_SIGNATURE;
}
//////////////////
// Get string file info.
// Key name is something like "CompanyName".
// returns the value as a CString.
//
CString CNGModuleVersion::GetValue(LPCTSTR lpKeyName)
{
CString sVal;
if (m_pVersionInfo) {
// To get a string value must pass query in the form
//
// "\StringFileInfo\<langID><codepage>\keyname"
//
// where <lang-codepage> is the languageID concatenated with the
// code page, in hex. Wow.
//
CString query;
query.Format(_T("\\StringFileInfo\\%04x%04x\\%s"),
m_translation.langID,
m_translation.charset,
lpKeyName);
LPCTSTR pVal;
UINT iLenVal;
if (VerQueryValue(m_pVersionInfo, (LPTSTR)(LPCTSTR)query,
(LPVOID*)&pVal, &iLenVal)) {
sVal = pVal;
}
}
return sVal;
}
// typedef for DllGetVersion proc
typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *);
/////////////////
// Get DLL Version by calling DLL's DllGetVersion proc
//
BOOL CNGModuleVersion::DllGetVersion(LPCTSTR modulename, DLLVERSIONINFO& dvi)
{
HINSTANCE hinst = LoadLibrary(modulename);
if (!hinst)
return FALSE;
// Must use GetProcAddress because the DLL might not implement
// DllGetVersion. Depending upon the DLL, the lack of implementation of the
// function may be a version marker in itself.
//
DLLGETVERSIONPROC pDllGetVersion =
(DLLGETVERSIONPROC)GetProcAddress(hinst, _T("DllGetVersion"));
if (!pDllGetVersion)
return FALSE;
memset(&dvi, 0, sizeof(dvi)); // clear
dvi.cbSize = sizeof(dvi); // set size for Windows
return SUCCEEDED((*pDllGetVersion)(&dvi));
}
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I haven't always written software for a living. When I graduated from Surrey University in 1989, it was with an Electronic Engineering degree, but unfortunately that never really gave me the opportunity to do anything particularly interesting (with the possible exception of designing
Darth Vader's Codpiece * for the UK Army in 1990).
* Also known as the Standard Army Bootswitch. But that's another story...
Since the opportunity arose to lead a software team developing C++ software for
Avionic Test Systems in 1996, I've not looked back. More recently I've been involved in the development of subsea acoustic navigation systems, digital TV broadcast systems, port security/tracking systems, and most recently software development tools with my own company,
Riverblade Ltd.
One of my personal specialities is IDE plug-in development.
ResOrg was my first attempt at a plug-in, but my day to day work is with
Visual Lint, an interactive code analysis tool environment with works within the Visual Studio and Eclipse IDEs or on build servers.
I love lots of things, but particularly music, photography and anything connected with history or engineering. I
despise ignorant, intolerant and obstructive people - and it shows...I can be a bolshy cow if you wind me up the wrong way...
I'm currently based 15 minutes walk from the beach in Bournemouth on the south coast of England. Since I moved here I've grown to love the place - even if it is full of grockles in Summer!