DEMONSTRATION OF SLIDER CONTROL

11.      DEMONSTRATION OF SLIDER CONTROL

Step 1:-Select a NEW file.

Step 2:-Select a project tab from new window and from that select MFC application wizard [exe] option and give a project name as Sliders and click ok.

Step 3:-

Þ    MFC Application wizard window is appeared.

Þ    Select dialog based default settings in step 1, click next.

Þ    Select default settings from step 2 to step 6 and click finish.

Þ    New projects information on window will appear and click ok.

Step 4:-Add a slider, an edit box, two labels (static box) and label the controls.

Step 5:-Goto class wizard -> new member variable -> m_slider -> category control for Slider and for edit box add the member variables as m_text and click ok.

Step 6:-Initialize the slider control, i.e. the slider can take extreme left position and extreme right position. Set the range from 1 to 100 using the CSlider SetRangeMin() and SetRangeMax() methods. For that go to class view tab -> CSliderDlg -> OnInitDialog() method and write the following code:

                        BOOL CSliderDlg::OnInitDialog()

                        {

                                    CDialog::OnInitDialog();

                                    m_slider.SetRangeMin(1, false);

                                    m_slider.SetRangeMax(100, false);

                                    m_text = ‘1’;

                                    UpdateData (false);

                        }

Step 7:-Goto class wizard -> object ID’S -> CSliderDlg -> messages -> WM_HSCROLL double click it -> OnHScroll() -> ok.

            void CSliderDlg::OnHScroll (UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)

            {

                        if(nSBCode == SB_THUMBPOSITION)

                        {

                                    m_text.Format(“%ld”, nPos);

                                    UpdateData (false);

                        }

                        else

                        {

                                    CDialog::OnHScroll (nSBCode, nPos, pScrollBar);

                        }

            }

OUTPUT