C / C++ / MFC

//lpszString = "Wednesday, 21 May 2003 --- 08:21:07 PM"<br />
BOOL CopyToClipBoard(LPSTR lpszString)<br />
{<br />
	LPTSTR  lptstrCopy; <br />
	HGLOBAL hglbCopy; <br />
	INT cch; 		<br />
<br />
	OpenClipboard(hWnd);<br />
	EmptyClipboard(); <br />
<br />
	cch=strlen(lpszString);<br />
	hglbCopy = GlobalAlloc(GMEM_MOVEABLE, (cch + 1) * sizeof(TCHAR)); <br />
	if (hglbCopy == NULL) <br />
	{ <br />
        	CloseClipboard(); <br />
		MessageBox(hWnd,"errror on GlobalAlloc()","Error",MB_ICONERROR);<br />
       		return FALSE; <br />
	}  <br />
<br />
	// Lock the handle and copy the text to the buffer.  <br />
	lptstrCopy = (LPTSTR)GlobalLock(hglbCopy); <br />
	memcpy(lptstrCopy, lpszString, cch * sizeof(TCHAR)); <br />
	lptstrCopy[cch] = (TCHAR) 0;    // null character <br />
<br />
<br />
	if(!GlobalUnlock(hglbCopy)) //>>>>>>>ERROR >>>>>>>:eek:	{<br />
		MessageBox(hWnd,"errror on GlobalUnlock()","Error",MB_ICONERROR);<br />
		return FALSE;  <br />
	}<br />
<br />
    	// Place the handle on the clipboard.  <br />
	if(!SetClipboardData(CF_TEXT, hglbCopy))<br />
	{<br />
		MessageBox(hWnd,"errror on SetClipboardData()","Error",MB_ICONERROR);<br />
		return FALSE; <br />
	}<br />
<br />
	if(!CloseClipboard())<br />
	{<br />
		MessageBox(hWnd,"errror on CloseClipboard()","Error",MB_ICONERROR);<br />
		return FALSE;  <br />
	}  <br />
<br />
	return TRUE;<br />
}

#include <iostream>
#include <string>

string s1 = "Hello" ;
string s2 = "Hello" ;
string s3 = "hell" ;

cout << (s1 == s2)   // yields 1
cout << (s1 == s3)   // yields 0