CCheckListBox

[martini]

How do I use the CCheckListBox control. Please let me know step by step.

[Martin Speiser]

Hi Martini,

the first step is similar to a normal CListBox, you add one to a dialog in RessourceView. Then you add a member variable of type control to your dialog. Third, open the dialog's header file and look for the definition of this variable. Should be something like

CListBox m_ctlMyListBox;



And the last step is to change the word "CListBox" to "CCheckListBox". That's all. After that you can use the additional members of the CCheckListBox class in your code.

With changing the type of the member control variable you use the subclassing feature of MFC. Nice, isn't it? ;-)

HTH


Martin

[martini]

dosen't seem to work!!!

[Rail Jon Rogut]

In the Resource Editor, set the style of the ListBox to Owner Draw and Fixed.

Rail

Recording Engineer/Software Developer
Rail Jon Rogut Software
[email protected]
http://home.earthlink.net/~railro/

[martini]

seems to give me assertion failure when I click on it. I guess i'm doing something wrong!!

[Rail Jon Rogut]

My fault... You also have to check the Has Strings style.

From the MFC source code:

int CCheckListBox::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CListBox::OnCreate(lpCreateStruct) == -1)
return -1;

if ((GetStyle() & (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS))
== (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS))
SetItemHeight(0, CalcMinimumItemHeight());

return 0;
}



Sorry... that should fix it.. if it doesn't le'me know.

Rail

Recording Engineer/Software Developer
Rail Jon Rogut Software
[email protected]
http://home.earthlink.net/~railro/