有哪位高手帮我解释下这段程序，谢谢了，诚心请教

[huaihaizi1988]

CString CSettingDlg::getAppDir() // 2009-12-07
{
CString sRet;
TCHAR drive[_MAX_DRIVE];
TCHAR dir[_MAX_DIR];
TCHAR fname[_MAX_FNAME];
TCHAR ext[_MAX_EXT];

GetModuleFileName(NULL, sRet.GetBuffer(_MAX_PATH), _MAX_PATH);
sRet.ReleaseBuffer();
_tsplitpath(sRet, drive, dir, fname, ext);
sRet.Format("%s%s", drive, dir);
return sRet;
}

[Dreadnought]

函数名不是表明了意图吗, 获取程序所在的目录

[Dreadnought]

GetModuleFileName
Retrieves the fully-qualified path for the file that contains the specified module
_tsplitpath
Break a path name into components

[huaihaizi1988]

谢谢啊

[gameslq]

CString CSettingDlg::getAppDir() // 2009-12-07
{
CString sRet;
TCHAR drive[_MAX_DRIVE];
TCHAR dir[_MAX_DIR];
TCHAR fname[_MAX_FNAME];
TCHAR ext[_MAX_EXT];

GetModuleFileName(NULL, sRet.GetBuffer(_MAX_PATH), _MAX_PATH);
sRet.ReleaseBuffer(); //返回当前应用程序文件名是绝对路径
_tsplitpath(sRet, drive, dir, fname, ext);//把获得的文件路径分割成4部分
sRet.Format("%s%s", drive, dir);
return sRet;
}
有问题多查msdn