TTX Reconnect

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/*
 * TTX version support
 * (C) 2020 tomo3136
 */

#include <windows.h>

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "ttxversion.h"

WORD tt_version = 0;

//same function with ttset::RunningVersion
static WORD TTRunningVersion()
{
#pragma comment(lib, "version.lib")
	char szPath[MAX_PATH];
	DWORD dwSize;
	DWORD dwHandle;
	LPVOID lpBuf;
	UINT uLen;
	VS_FIXEDFILEINFO *pFileInfo;
	int major, minor;

	GetModuleFileName(NULL, szPath, sizeof(szPath) - 1);

	dwSize = GetFileVersionInfoSize(szPath, &dwHandle);
	if (dwSize == 0)
	{
		return 0;
	}

	lpBuf = malloc(dwSize);
	if (!GetFileVersionInfo(szPath, dwHandle, dwSize, lpBuf))
	{
		free(lpBuf);
		return 0;
	}

	if (!VerQueryValue(lpBuf, "\\", (LPVOID *)&pFileInfo, &uLen))
	{
		free(lpBuf);
		return 0;
	}

	major = HIWORD(pFileInfo->dwFileVersionMS);
	minor = LOWORD(pFileInfo->dwFileVersionMS);

	free(lpBuf);

	return major * 10000 + minor;
}

void TTXInitVersion()
{
	tt_version = TTRunningVersion();
}