C / C++ / MFC

class CMyClass
{
	.
	.
	.

	const CMyClass &operator =(const CMyClass &src)
	{
		m_String = src.m_String;

		m_StringArray.RemoveAll();
		m_StringArray.Append(src.m_StringArray);
		m_StringArray.FreeExtra();

		return *this;
	}

public:
	CString		m_String;
	CStringArray	m_StringArray;
};

pMsg->wParam = MAKEWPARAM(IDC_BUTTON1, BN_CLICKED);

<br />
if (pMsg->wParam == VK_F2)<br />
{<br />
  PostMessage(WM_COMMAND, <br />
    MAKEWPARAM(IDC_BUTTON1, BN_CLICKED), <br />
    (LPARAM) ::GetDlgItem(GetSafeHwnd(), IDC_BUTTON1));<br />
  return true;<br />
<br />
// Convert it into a button click message.<br />
//			pMsg->message = WM_COMMAND;<br />
//			pMsg->wParam = MAKEWPARAM(IDC_BUTTON1, BN_CLICKED);<br />
//			pMsg->lParam = (LPARAM) ::GetDlgItem(GetSafeHwnd(), IDC_BUTTON1);<br />
}<br />

Note This member function is called by the framework to allow your application to handle a Windows message. The parameters passed to your function reflect the parameters received by the framework when the message was received. If you call the base-class implementation of this function, that implementation will use the parameters originally passed with the message and not the parameters you supply to the function.