Discharging a message box with return key

JoeB <joe@nospam.com>
Thu, 15 Jun 2006 16:21:09 +0100

I handle PreTranslateMessage, look for VK_RETURN in a edit control, the SendMessage() to a button press handler, OnApply().

The effect is, when the user presses RETURN in a specified edit ctrl, the 'Apply' button is pressed programicly.

The OnApply() method issues a MessageBox() system modal. Pressing enter to discharge the message box causes the message box to disapear( as expected) but then for some reason PreTranslateMessage receives that return key press, and calls OnApply() again...

Clicking OK in the message box works as expectred.

Why do i see the return key press in PreTranslateMessage when the message box is shown? surely GetFocus() should return the message boxes OK button when shown, not the edit ctrl...

What am i doing wrong?!

BOOL CScopeView::PreTranslateMessage(MSG* pMsg)
  if( pMsg->message == WM_KEYUP )
    if( pMsg->wParam == VK_RETURN )
      if( ::GetFocus() == c_RangeEdit.GetSafeHwnd() )
                     MAKELONG(c_DisplayCommitBtn.GetDlgCtrlID(), BN_CLICKED),
                     (LPARAM)c_DisplayCommitBtn.GetSafeHwnd() );
    return TRUE;
  return CFormView::PreTranslateMessage(pMsg);

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