C / C++ / MFC

void CSelectStudents::CreateGroupList(void)
{
   CString stud_id;
   stud_id.Empty();
   for (int f=0; f< m_studentlist.GetItemCount(); f++)
   {
      stud_id += m_studentlist.GetItemText(f,3);
   }
} 

void CSelectStudents::CreateGroupList(void)
{
	CString stud_id;

	for (int f=0; f< m_studentlist.GetItemCount(); f++)
	{
		stud_id += m_studentlist.GetItemText(f,3);
	}
}

<code>
char A[] = _T("ABCD")
</code>

• The _T macro converts your literal string to unicode, if enabled. This is also the same as the TEXT() macro.
• Instead of char, declare your characters as TCHAR. When compiling a UNICODE program, the character will be treated as a double-byte character, instead of the usual single byte set.
• Most of the C++ string manipulation routines have a UNICODE version. eg. strcpy will only work on ANSI encoded charaters. _tcscpy does exactly the same thing but also uses the correct function if compiling in UNICODE mode.