owntone-server/win32/FireflyShell/VersionInfo.cpp
2006-05-29 09:14:04 +00:00

111 lines
2.7 KiB
C++

/*
*(C) 2006 Roku LLC
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License Version 2 as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* without any warranty; without even the implied warranty of
* merchantability or fitness for a particular purpose. See the GNU General
* Public License for more details.
*
* Please read README.txt in the same directory as this source file for
* further license information.
*/
#include "stdafx.h"
#include "VersionInfo.h"
bool VersionInfo::Open(const TCHAR *filename)
{
Close();
DWORD useless;
m_size = GetFileVersionInfoSize(filename, &useless);
if (m_size)
{
m_buffer = operator new(m_size);
::ZeroMemory(m_buffer, m_size);
if (GetFileVersionInfo(filename, 0, m_size, m_buffer))
{
return IdentifySubBlock();
}
else
Close();
}
return false;
}
bool VersionInfo::IdentifySubBlock()
{
m_subblock.Empty();
WORD required_langid = LANGIDFROMLCID(GetUserDefaultLCID());
UINT cbTranslate;
struct LANGANDCODEPAGE
{
WORD wLanguage;
WORD wCodePage;
} *lpTranslate;
if (VerQueryValue(m_buffer, _T("\\VarFileInfo\\Translation"),
reinterpret_cast<LPVOID*>(&lpTranslate),
&cbTranslate))
{
// Try and find the user's language, but if we can't then just use the
// first one in the file.
int lang_index = -1;
for(unsigned i=0; i < (cbTranslate/sizeof(struct LANGANDCODEPAGE)); i++ )
{
// If we have an exact match then great.
if (lpTranslate[i].wLanguage == required_langid)
{
lang_index = i;
break;
}
// Otherwise settle for a primary language match and keep looking
else if ((PRIMARYLANGID(lpTranslate[i].wLanguage) == PRIMARYLANGID(required_langid)) && (lang_index < 0))
{
lang_index = i;
}
}
if (lang_index < 0)
{
ATLTRACE("Failed to find a matching language. Just using the first one.\n");
lang_index = 0;
}
m_subblock.Format(_T("\\StringFileInfo\\%04x%04x\\"), lpTranslate[lang_index].wLanguage, lpTranslate[lang_index].wCodePage);
return true;
}
return false;
}
void VersionInfo::Close()
{
if (m_buffer)
{
delete m_buffer;
m_buffer = NULL;
}
}
CString VersionInfo::GetString(const TCHAR *name) const
{
CString path = m_subblock + name;
LPVOID buffer;
UINT cb;
if (VerQueryValue(m_buffer, const_cast<LPTSTR>(static_cast<LPCTSTR>(path)), &buffer, &cb))
{
return CString(static_cast<LPCTSTR>(buffer), cb);
}
return CString();
}
//CString VersionInfo::GetStringFileVersion()
//{
// VerQueryValue(m_buffer,
//}