Beginners question: how to update a single (edit) control in a dialog ?

Each control of a dialog window has a unique ID (besides static controls). To access a control, you can pass this ID (see your dialog template in the resource view) to the GetDlgItem()[^] function. Once you have a pointer to this control, you can access member functions like SetWindwText() which will set the text for edit controls:

CEdit* pEdit = (CEdit*)GetDlgItem(IDC_MYEDIT);
pEdit->SetWindwoText(_T("New text"));

Another option is to assign a member variable to the edit control. You can do this using the resource editor. Then use this variabale to change the text of your edit control (e.g. m_Edit1.SetWindowText(_T("New Text"))). This is the recommended way. If all controls that may be changed have such a member variable and use it for updating, you can omit the calls to UpdateData().

Hi,

Thanks for the suggestions. Strangely enough I found the solution myself 1 minute after posting the question.

I have basically used the first method suggested by Jochen and that works just fine.
Good to know about the second one though, I can see that one coming in handy at a later date.

The first link suggested by Chandanadhikari is indeed correct, that is where I found the solution.

Thanks for the help.