Refresh of edit box, Timing issue?

[moobob]

I have 2 edit boxes, A & B. B cannot have a value in it unless A does. B is disabled until A gets a value. When the user erases the value in A, I want to disable and erase the value in B. This all works fine in the debugger with the following code: if (m_VidValue.IsEmpty()) { m_Prefix = ""; GetDlgItem(IDC_VID_PREFIX_EDIT)->EnableWindow(FALSE); UpdateData(FALSE); } When I run the code outside the debugger, the field gets disabled, but it does not clear. I can make it clear by forcing a RedrawWindow(). Is there a better way to do this without redrawing and getting the annoying flicker? Thanks in advance, Bob

[Navin]

You could try using SetWindowText("") to clear an edit box, for instance: m_Prefix = ""; CWnd *pControl = GetDlgItem(IDC_VID_PREFIX_EDIT); if(pControl) { pControl->SetWindowText(""); pControl->EnableWindow(FALSE); } No generalization is 100% true. Not even this one.

[moobob]

SetWindowText does not work either, unless I do a RedrawWindow().

[Navin]

Hmm, that seems odd. Are you doing the SetWindowText before you disable the window? You might be able to get away with a RedrawWindow only on the edit box, and not the whole dialog, which may help the flicker problem. No generalization is 100% true. Not even this one.

[moobob]

Yes, I am doing the SetWindowText before I disable the window. I've also tried doing a RedrawWindow on the edit box, but that doesn't work.

[Jack Handy]

Did you try: GetDlgItem(IDC_VID_PREFIX_EDIT)->Invalidate(); -Jack To an optimist the glass is half full. To a pessimist the glass is half empty. To a programmer the glass is twice as big as it needs to be.

[moobob]

That did it, thanks!