Visual C++ and MFC Programming 2nd Edition

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

10. Add a Control Variable for the progress controls and name them from top down as:
    m_ProgressHours, m_ProgressMinutes, and m_ProgressSeconds respectively


11. Add a CString Value Variable for the IDC_VAL_HOURS, the
    IDC_VAL_MINUTES, and the IDC_VAL_SECONDS identifiers and name them
    m_ValueHours, m_ValueMinutes, and m_ValueSeconds respectively


12. Test the application and return to MSVC

18.2.3..Progress Control Methods and Events.............................................

We mentioned already, an MFC progress bar is based on the CProgressCtrl class.

Therefore, to dynamically create a progress bar, you can declare a variable or a pointer to

CProgressCtrl using its constructor. To initialize it, call its Create() method and set the

necessary characteristics. Here is an example:

BOOL CDlgProgress1Dlg::OnInitDialog()

{

CDialog::OnInitDialog();

SetIcon(m_hIcon, TRUE); // Set big icon

SetIcon(m_hIcon, FALSE); // Set small icon

// TODO: Add extra initialization here

CProgressCtrl *Progress = new CProgressCtrl;

Progress->Create(WS_CHILD | WS_VISIBLE, CRect(10, 10, 288, 35), this,0x16);

return TRUE; // return TRUE unless you set the focus to a control

}

To express its evolution, a progress bar uses values from a minimum to a maximum.

These limit values are set using the CProgressCtrl::SetRange() or the

CProgressCtrl::SetRange32() methods. Their syntaxes are:

void SetRange(short nLower, short nUpper);

void SetRange32(int nLower, int nUpper);

The nLower argument sets the minimum value for the control. The nUpper argument is

the maximum value of the control. Here is an example:

BOOL CDlgProgress1Dlg::OnInitDialog()

{

CDialog::OnInitDialog();

SetIcon(m_hIcon, TRUE); // Set big icon

SetIcon(m_hIcon, FALSE); // Set small icon

// TODO: Add extra initialization here

CProgressCtrl *Progress = new CProgressCtrl;

Progress->Create(WS_CHILD | WS_VISIBLE, CRect(10, 10, 288, 35), this,0x16);

Progress->SetRange(1, 100);

return TRUE; // return TRUE unless you set the focus to a control

}