www.pudn.com > ecc-0.3.16-src.zip > eccFileVersionInfo.cpp

/* ========================================================================== 
 
	ecc - Erik's Code Collection 
	Copyright (C) 2003-2005 - Erik Dienske 
 
	This file is part of ecc. 
 
	ecc is free software; you can redistribute it and/or modify 
	it under the terms of the GNU General Public License as published by 
	the Free Software Foundation; either version 2 of the License, or 
	(at your option) any later version. 
 
	ecc 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. 
 
	You should have received a copy of the GNU General Public License 
	along with ecc; if not, write to the Free Software Foundation, Inc., 
	59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
	 
===========================================================================*/ 
 
//--------------------------------------------------------------------------- 
#include  
#pragma hdrstop 
 
#include "eccFileVersionInfo.h" 
#include "eccError.h" 
#include "eccString.h" 
//--------------------------------------------------------------------------- 
#pragma package(smart_init) 
//--------------------------------------------------------------------------- 
#include 	// AnsiReplaceStr 
//--------------------------------------------------------------------------- 
 
//=========================================================================== 
namespace ecc { 
//=========================================================================== 
 
TFileVersionInfo::TFileVersionInfo() 
{ 
	ResetValues(); 
} 
//--------------------------------------------------------------------------- 
 
TFileVersionInfo::TFileVersionInfo(String fname) 
{ 
	ReadValues(fname); 
} 
//--------------------------------------------------------------------------- 
 
void TFileVersionInfo::ResetValues() 
{ 
	FFileName = ""; 
	FMajor = FMinor = FRelease = FBuild = "-1"; 
	FError = false; 
	FErrorMsg = ""; 
 
	for (int i = 0; i < eccFVIKeyStringsCount; i++) 
	{ 
		Values[i] = ""; 
	} 
} 
//--------------------------------------------------------------------------- 
 
void TFileVersionInfo::ReadValues(String fname) 
{ 
	ResetValues(); 
 
	DWORD zeroval; 
	int size = GetFileVersionInfoSize(fname.c_str(), (LPDWORD)&zeroval); 
	if (!size) 
	{ 
		FError = true; 
		FErrorMsg = "GetFileVersionInfoSize() failed. " + ECC_DEBUGINFO; 
		return; 
	} 
 
	char* buf = new char[size+1]; 
 
	try 
	{ 
		if (GetFileVersionInfo(fname.c_str(), 0, size, (LPVOID)buf) == 0) 
			ECC_THROW("GetFileVersionInfo() failed"); 
 
		/* Get language/codepage: */ 
		struct TeccLangAndCP 
		{ 
			WORD wLanguage; 
			WORD wCodePage; 
		} *PeccLangAndCP; 
		UINT LangLen; 
 
		if (VerQueryValue(buf, "\\VarFileInfo\\Translation", (LPVOID*)&PeccLangAndCP, &LangLen) == 0) 
			ECC_THROW("VerQueryValue() failed while retrieving language/codepage"); 
 
		/* Get a value: */ 
		String sub_blk = Format("\\StringFileInfo\\%.4x%.4x\\", 
			ARRAYOFCONST((PeccLangAndCP->wLanguage, PeccLangAndCP->wCodePage))); 
 
		void* val; 
		unsigned int len; 
 
		for (int i = 0; i < eccFVIKeyStringsCount; i++) 
		{ 
			if (VerQueryValue(buf, String(sub_blk + TEccFVIKeyStrings[i]).c_str(), &val, &len)) 
				Values[i] = String((char*)val, len).TrimRight(); 
				//ECC_THROW("VerQueryValue() failed while retrieving value"); 
			else 
				Values[i] = "Error retrieving value of '" + TEccFVIKeyStrings[i] + "'"; 
		} 
 
		/* Ok: */ 
		delete[] buf; 
		SplitVersionNumber(); 
	} 
	catch(Exception &ex) 
	{ 
		FError = true; 
		FErrorMsg = ex.Message; 
		delete[] buf; 
	} 
} 
//--------------------------------------------------------------------------- 
 
String TFileVersionInfo::GetValue(TEccFVIKeyId fvi) 
{ 
	if (fvi >= eccFVIKeyStringsCount) return (""); 
	return Values[fvi]; 
} 
//--------------------------------------------------------------------------- 
 
void TFileVersionInfo::SplitVersionNumber() 
{ 
	String version = Values[fviFileVersion]; 
	if (version.IsEmpty()) return; 
 
	version = AnsiReplaceStr(version, ",", "."); // Seperator can be ',' or '.'. 
 
	int pos1 = 1; 
	int pos2 = version.Pos("."); 
	if (!pos2) return; 
	FMajor = version.SubString(pos1, pos2-pos1); 
	version = version.Delete(pos1, (pos2-pos1 +1)); 
 
	pos2 = version.Pos("."); 
	if (!pos2) return; 
	FMinor = version.SubString(pos1, pos2-pos1); 
	version = version.Delete(pos1, (pos2-pos1 +1)); 
 
	pos2 = version.Pos("."); 
	if (!pos2) return; 
	FRelease = version.SubString(pos1, pos2-pos1); 
	version = version.Delete(pos1, (pos2-pos1 +1)); 
 
	FBuild = version; 
} 
//--------------------------------------------------------------------------- 
 
String TFileVersionInfo::GetMajor() 
{ 
	return FMajor; 
} 
//--------------------------------------------------------------------------- 
 
String TFileVersionInfo::GetMinor() 
{ 
	return FMinor; 
} 
//--------------------------------------------------------------------------- 
 
String TFileVersionInfo::GetRelease() 
{ 
	return FRelease; 
} 
//--------------------------------------------------------------------------- 
 
String TFileVersionInfo::GetBuild() 
{ 
	return FBuild; 
} 
//--------------------------------------------------------------------------- 
 
String TFileVersionInfo::GetVersion() 
{ 
	return FMajor + "." + FMinor + "." + FRelease; 
} 
//--------------------------------------------------------------------------- 
 
//=========================================================================== 
} // namespace ecc; 
//===========================================================================