External environment refers to the major factors and forces outside the organization that have the potential to significantly affect the performance of an organization. External environment is divided into two parts i.e. mega environment or general environment and specific or task environment.
_tcscat is a C function, to concatenate C-style strings; CString is a class (which has built in concatenation via operator+), not a C-style string.
Re: How to convert CString to char*. Originally Posted by hanhao dont do conversion or casting use CString class to your advantage instead of (LPTSTR)(LPCTSTR)last_line use last_line.GetBuffer(256) instead Depends. CString already has a const char* operator. So if you only need to read the CString's buffer, taking advantage of the const char* operator is easier and safer. Only use GetBuffer if you need to modify the contents, and then only if there isn't an available assignment operator.