Dialog: Keeping the focus

[ihirst]

I want to validate the input into MY_CEdit object. Borland C++ provided a TValidator class but I believe that in Visual C++ there is no equivelent class and you need to write your own code.

In order to do this I need to prevent by control MY_CEdit from loosing the focus. Can some one please point me in the right direction as to how to do this?

Please note I am not greatly experianced in windows programming.

 

[palbano]

I don’t understand what your asking. To keep the focus on an Edit control you handle the EN_KILLFOCUS message for the control and then set the focus. Here is a small example in MFC where the dialog handles the EN_KILLFOCUS message and the dialog member variable _edOne is a MFC CEdit object that subclasses the edit control on the dialog.

void CMainDlg::OnEnKillfocusEdit1()
{
	CWnd* pEd = (CEdit*)GetDlgItem(IDC_EDIT1);
	if(pEd && !pEd->GetWindowTextLength())
		pEd->SetFocus();
}

>> I am not greatly experianced in windows programming.

I strenuously recommend getting a book targeting beginners for Windows C++ development.

-pete