Visual C++ and MFC Programming 2nd Edition

Visual C++ and MFC Fundamentals Chapter 17: Track-Based Controls

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17.3.3..Slider Properties...................................................................................

After placing a slider control on a form or other host, by default, it assumes a horizontal

position. If you want a vertical slider, change the value of the Orientation property. If

you were dynamically creating the control, its default orientation would be horizontal

whose style is TBS_HORZ. If you want a vertical slider, apply the TBS_VERT style:

BOOL CDlgSlide::OnInitDialog()

{

CDialog::OnInitDialog();

// TODO: Add extra initialization here

CSliderCtrl *Taskbar = new CSliderCtrl;

Taskbar->Create(WS_CHILD | WS_VISIBLE | TBS_VERT,

CRect(20, 20, 50, 250), this, 0x14);

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

// EXCEPTION: OCX Property Pages should return FALSE

}

The new slider appears as one line, horizontal or vertical, that guides the user with the

area to slide the thumb. When sliding the thumb along the line, the user can set only the

value where the thumb is positioned. Alternatively, if you want the user to be able to

select a range of values instead of just a value, at design time, you can set the Enable

Selection property to True. This is equivalent to adding the

TBS_ENABLESELECTION style. A slider equipped with this style displays a 3-D

“whole” in the body of the slider:

The selection area allows the user to select a range of values.