asked on

How do I get/set information from a checkbox control in MFC

If I have a text control, I can get/set information as:

CString strVal;
GetDlgItem(nID)-> GetWindowText(strVal);
GetDlgItem(nID)-> GetWindowText(strVal);

What is the equivalent to get/set information from a checkbox control?

'CButton::GetCheck()' (http://msdn.microsoft.com/en-US/library/8tba1y6f%28v=vs.110%29.aspx) or 'CButton::SetCheck()' (http://msdn.microsoft.com/en-us/library/31deb72x(v=vs.110).aspx) will do that for your. See also the article at http://www.codeproject.com/Articles/537/Avoiding-GetDlgItem ("Avoiding GetDlgItem") that sheds in some light about how MFC handles that.

DickStone

ASKER

I tried

GetDlgItem(nID)->CButton::SetCheck(BST_CHECKED);

This resulted in:
c:\wfree\runpage.cpp(1264): error C2039: 'CButton' : is not a member of 'CWnd'
2> c:\program files\microsoft visual studio 10.0\vc\atlmfc\include\afxwin.h(2286) : see declaration of 'CWnd'
2>c:\wfree\runpage.cpp(1264): error C2662: 'CButton::SetCheck' : cannot convert 'this' pointer from 'CWnd' to 'CButton &'
2> Reason: cannot convert from 'CWnd' to 'CButton'
2> Conversion requires a second user-defined-conversion operator or constructor

P.S. I normally use variables, but there are 45 controls and it's easier to set up a loop on the controls.

ASKER CERTIFIED SOLUTION

jkr

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DickStone

ASKER

That looks like it got it. I'll close this tomorrow if I don't get any additional comments.

Thanks

jkr

Be sure to also check out http://www.codeproject.com/Articles/537/Avoiding-GetDlgItem ("Avoiding GetDlgItem") - the title says why ;o)

jkr

Still having trouble?

DickStone

ASKER

Quick response. Also followed up to see if I was doing OK.