Visual C++ and MFC Programming 2nd Edition

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

check box, its style must include the BS_CHECKBOX style. If you want the control to

display or hide a check mark when it gets clicked, create it with the

BS_AUTOCHECKBOX style.

BOOL CCheckBoxes::OnInitDialog()

{

CDialog::OnInitDialog();

// TODO: Add extra initialization here

CButton *chkDay[5];

chkDay[0] = new CButton;

chkDay[0]->Create("&Monday", WS_CHILD | WS_VISIBLE |

BS_AUTOCHECKBOX | BS_LEFTTEXT,

CRect(20, 40, 140, 55), this, 0x11);

chkDay[1] = new CButton;

chkDay[1]->Create("&Tuesday", WS_CHILD | WS_VISIBLE |

BS_AUTOCHECKBOX | BS_LEFTTEXT,

CRect(20, 60, 140, 75), this, 0x12);

chkDay[2] = new CButton;

chkDay[2]->Create("&Wednesday", WS_CHILD | WS_VISIBLE |

BS_AUTOCHECKBOX | BS_LEFTTEXT,

CRect(20, 80, 140, 95), this, 0x13);

chkDay[3] = new CButton;

chkDay[3]->Create("&Thursday", WS_CHILD | WS_VISIBLE |

BS_AUTOCHECKBOX | BS_LEFTTEXT,

CRect(20, 100, 140, 115), this, 0x14);

chkDay[4] = new CButton;

chkDay[4]->Create("&Friday", WS_CHILD | WS_VISIBLE |

BS_AUTOCHECKBOX | BS_LEFTTEXT,

CRect(20, 120, 140, 135), this, 0x15);

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

// EXCEPTION: OCX Property Pages should return FALSE

}

We mentioned already that a check box can assume one of three states: checked,

unchecked, or dimmed. If you want to apply one of the states to such a check box, that is,

to programmatically check, uncheck, or dim it, you can call the

CWnd::CheckDlgButton() method whose syntax is:

void CheckDlgButton( int nIDButton, UINT nCheck );