CString strClipboard;
CString tmp;
//Obteniendo todos lo elementos de m_list en strClipboard
int len = m_list.GetCount();
for(int i = 0; i < len; i++)
{
m_list.GetText( i, tmp);
strClipboard += tmp;
strClipboard += "\r\n";
}
// Copiando strClipboard al Clipboard
if(OpenClipboard())
{
HGLOBAL clipbuffer;
char * buffer;
EmptyClipboard();
clipbuffer = GlobalAlloc(GMEM_DDESHARE, strClipboard.GetLength()+1);
buffer = (char*)GlobalLock(clipbuffer);
strcpy(buffer, LPCSTR(strClipboard));
GlobalUnlock(clipbuffer);
SetClipboardData(CF_TEXT,clipbuffer);
CloseClipboard();
}