几个非常有用的函数－获取可执行文件所在的目录及读取配置文件

// 取得Exe所在的目录(不包含最后的"\")
CString GetExePath()
{
	char sFileName[256] = {0};
	CString sPath = _T("");
	
	GetModuleFileName(AfxGetInstanceHandle(), sFileName, 255);
	sPath.Format("%s", sFileName);
	int pos = sPath.ReverseFind('\\');
	if(pos != -1)
		sPath = sPath.Left(pos);
	else
		sPath = _T("");
	
	return sPath;
}

void ReadKeyValue(LPCSTR lpSection, LPCSTR lpKey, LPCTSTR lpDefault, CString &sDest, LPCTSTR sConfigFile)	// 读取字符串
{
	char sValue[500] = {0};
	GetPrivateProfileString(lpSection, lpKey, lpDefault, sValue, 499, sConfigFile);
	sDest = sValue;
}

void ReadKeyValue(LPCSTR lpSection, LPCSTR lpKey, int nDefault, UINT &nDest, LPCTSTR sConfigFile)			// 读取整数
{
	nDest = GetPrivateProfileInt(lpSection, lpKey, nDefault, sConfigFile);
}

void ReadKeyValue(LPCSTR lpSection, LPCSTR lpKey, int nDefault, BOOL &nDest, LPCTSTR sConfigFile)			// 读取BOOL数据
{
	UINT nTemp;
	nTemp = GetPrivateProfileInt(lpSection, lpKey, nDefault, sConfigFile);
	nDest = nTemp != 0;
}

若有需要，再添加对这几个函数的声明：

CString GetExePath();
void ReadKeyValue(LPCSTR lpSection, LPCSTR lpKey, LPCTSTR lpDefault, CString &sDest, LPCTSTR sConfigFile);
void ReadKeyValue(LPCSTR lpSection, LPCSTR lpKey, int nDefault, UINT &nDest, LPCTSTR sConfigFile);
void ReadKeyValue(LPCSTR lpSection, LPCSTR lpKey, int nDefault, BOOL &nDest, LPCTSTR sConfigFile);