1,char* to LPTSTR

LPTSTR Char2LPTSTR(char* mchar)
{
　　int length ;
　　wchar_t* pWChar;
　　length = MultiByteToWideChar (CP_OEMCP, 0, mchar, -1, NULL, 0) ;
　　if(length<=0)return NULL;
　　pWChar=new wchar_t[length+1];
　　memset(pWChar,0,length+1);
　　MultiByteToWideChar (CP_OEMCP, 0, mchar, -1, pWChar, length+1) ;
　　return pWChar;
}

注意用完后要及时

delete [] pWChar;

2, CString to char* 

char* pmodel=(LPSTR)(LPCTSTR)csSelectedModel;