Visual C++ and MFC Programming 2nd Edition

Visual C++ and MFC Fundamentals Chapter 18: Progress-Based Controls

void CRandShapesDlg::OnMouseMove(UINT nFlags, CPoint point)

{

// TODO: Add your message handler code here and/or call default

static int MoveCounter = 0;

if( MoveCounter >= 20 )

DestroyWindow();

MoveCounter++;

CDialog::OnMouseMove(nFlags, point);

}

8. To change the background of the dialog box to black, change the OnPaint() event as
   follows:

void CRandShapesDlg::OnPaint()

{

CPaintDC dc(this); // device context for painting

CRect ScreenRecto;

GetClientRect(&ScreenRecto);

CBrush BrushBlack(RGB(0, 0, 0));

CBrush *pOldBrush = dc.SelectObject(&BrushBlack);

dc.Rectangle(ScreenRecto);

dc.SelectObject(pOldBrush);

if (IsIconic())

{

SendMessage(WM_ICONERASEBKGND,

reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

// Center icon in client rectangle

int cxIcon = GetSystemMetrics(SM_CXICON);

int cyIcon = GetSystemMetrics(SM_CYICON);

CRect rect;

GetClientRect(&rect);

int x = (rect.Width() - cxIcon + 1) / 2;

int y = (rect.Height() - cyIcon + 1) / 2;

// Draw the icon

dc.DrawIcon(x, y, m_hIcon);

}

else

{

CDialog::OnPaint();

}

}

9. Test the application and return to MSVC


10. To hide the cursor, at the end of the OnInitDialog() event, just before the return line,
    call the ShowCursor() function with a FALSE argument.

18.1.2..The Timer Control...............................................................................

Unlike most other controls, the MFC timer has neither a button to represent it nor a class.

To create a timer, you simply call the CWnd::SetTimer() method. Its syntax is: