Control if a check box is checked

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I wrote:

void CMFCApplication7Dlg::OnBnClickedCheck2()
{
	if ((check1.IsDlgButtonChecked==true) || (check3.IsDlgButtonChecked==true))
		text_check.SetWindowText(_T("check_multipli"));// TODO: Add your control notification handler code here
	else
		text_check.SetWindowText(_T("check2"));
}

What I have tried:

text_check must write "check:multipli" if other checkbox are checked but it doesn't work..I don't understand, it writes only check2

Posted 16-Sep-19 21:51pm

Member 14594285

Updated 16-Sep-19 21:54pm

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OriginalGriff · Accepted Answer · 2019-09-16T21:55:00

Solution 1

Look at the definition of IsDlgButtonChecked function (winuser.h) | Microsoft Docs[^] - it doesn't return a Boolean value, it returns a tristate value:

Quote:

BST_CHECKED          The button is checked.
BST_INDETERMINATE    The button is in an indeterminate state (applies only if the button
                     has the BS_3STATE or BS_AUTO3STATE style).
BST_UNCHECKED        The button is not checked.

Posted 16-Sep-19 21:55pm

OriginalGriff

v2

Comments

Member 14594285 17-Sep-19 3:56am

i WROTE:
if ((check1.IsDlgButtonChecked==BST_CHECKED) || (check3.IsDlgButtonChecked==BST_CHECKED))
text_check.SetWindowText(_T("check_multipli"));// TODO: Add your control notification handler code here
else
text_check.SetWindowText(_T("check2"));
}

but it's the same thing

Member 14594285 17-Sep-19 4:33am

I solved, I used:
CButton *m_ctlCheck = (CButton*)GetDlgItem(IDC_CHECK1);

but I don't understand whats GetDlgItem do

Rick York 17-Sep-19 11:39am

GetDlgItem returns a handle to a control in a dialog.