Visual C++ and MFC Programming 2nd Edition

Visual C++ and MFC Fundamentals Chapter 20: List-Based Controls

// TODO: Add extra initialization here

CComboBox *Majors = new CComboBox;

Majors->Create(WS_CHILD | WS_VISIBLE |

WS_VSCROLL | CBS_DROPDOWNLIST,

CRect(10, 50, 100, 150), this, 0x1448);

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

}

After creating the control, probably the next action to take consists of creating its items.

To add a string to a combo box, you can call the CComboBox::AddString() method that

uses the same syntax as the CListBox::AddString() member function. Here is an

example:

BOOL CExerciseDlg::OnInitDialog()

{

CDialog::OnInitDialog();

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

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

// TODO: Add extra initialization here

CComboBox *Majors = new CComboBox;

Majors->Create(WS_CHILD | WS_VISIBLE |

WS_VSCROLL | CBS_DROPDOWNLIST,

CRect(10, 50, 100, 150), this, 0x1448);

Majors->AddString("Accounting");

Majors->AddString("Art Education");

Majors->AddString("Finance");

Majors->AddString("Biology");

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

}

Most other methods are implemented as they are for the CListBox class.

Practical Learning: Using Combo Box Methods

1. To create the list of flavors, in the OnInitDialog() event of the dialog class, type the
   following:

CClarksvilleIceScream2Dlg::CClarksvilleIceScream2Dlg(CWnd* pParent /*=NULL*/)

: CDialog(CClarksvilleIceScream2Dlg::IDD, pParent)

, m_ContainerValue(0)

, m_TaxRate(_T("0.00"))

, m_SubTotal(_T("0.00"))

, m_TaxAmount(_T("0.00"))

, m_OrderTotal(_T("0.00"))

{

m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

...