C / C++ / MFC

class TestArchive
{
  public:
	TestArchive():
             oStore(new CMemFile(), CArchive::store)
             oLoad(new CMemFile(), CArchive::load)
        {;}

        void SetLoadMode(bool bMode) {m_bLoadMode = bMode; }
	operator CArchive&() { return m_bLoadMode ? oLoad : oStore; }  


   protected :
        bool m_bLoadMode;
	CArchive oStore;
	CArchive oLoad;
...
};

CTestArchive oTestArchive;
 Byte by = 255;

 oTestArchive << by;

(CArchive&)oTestArchive << by;

int nWidth = 550;
int nHeight = 400;
HRGN hRegion1 = CreateRectRgn(0, 0, nWidth, nHeight);//-----1
HRGN hRegion2 = CreateRectRgn(0, 0, nWidth, nHeight);//-----1

void ClientResize(HWND hWnd, int nWidth, int nHeight)
{

		RECT rcWnd;
		POINT pnt, pntDiff;
		GetCursorPos(&pnt);
		GetWindowRect(hWnd, &rcWnd);

		if((pnt.x >= (rcWnd.right-20))&&(pnt.y >= (rcWnd.bottom - 20)))
		{
			//put code to rezise window
			//MessageBox(NULL, TEXT("Resize should be here"), TEXT("Good"), MB_OK);
			
			pntDiff.x = pnt.x - nWidth;
			nWidth += (int)pntDiff.x;
			pntDiff.y = pnt.y - nHeight;
			nHeight += (int)pntDiff.y;
			MoveWindow(hWnd, rcWnd.left, rcWnd.top, nWidth, nHeight, TRUE);
		}
}


LRESULT CALLBACK WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
case WM_CREATE:

		g_Hwnd = hWnd;
		// Remove title bar and prevent resizing
		dwStyle &= ~(WS_CAPTION|WS_SIZEBOX);
		SetWindowLong(hWnd, GWL_STYLE, dwStyle);
		CombineRgn(hRegion1, hRegion1, hRegion2, RGN_OR);//-----1
		SetWindowRgn(hWnd, hRegion1, true);//-----1

		break;
	case WM_LBUTTONDOWN:

		ClientResize(hWnd, nWidth, nHeight); 
                break;
	case WM_LBUTTONUP:
		UpdateWindow(hWnd);

		break;
}

C:\abc\cd\as.txt

C:\abc\cd