void AFXAPI AfxCancelModes(HWND hWndRcvr)
{
// if we receive a message destined for a window, cancel any combobox
// popups that could be in toolbars or dialog bars
HWND hWndCancel = ::GetFocus();
if (hWndCancel == NULL)
return; // nothing to cancel
if (hWndCancel == hWndRcvr)
return; // let input go to window with focus
// focus is in part of a combo-box
if (!_AfxIsComboBoxControl(hWndCancel, (UINT)CBS_DROPDOWNLIST))
{
// check as a dropdown
hWndCancel = ::GetParent(hWndCancel); // parent of edit is combo
if (hWndCancel == hWndRcvr)
return; // let input go to part of combo
if (!_AfxIsComboBoxControl(hWndCancel, (UINT)CBS_DROPDOWN))
return; // not a combo-box that is active
}
// combo-box is active, but if receiver is a popup, do nothing
if (hWndRcvr != NULL &&
(::GetWindowLong(hWndRcvr, GWL_STYLE) & WS_CHILD) != 0 &&
::GetParent(hWndRcvr) == ::GetDesktopWindow())
return;
// finally, we should cancel the mode!
::SendMessage(hWndCancel, CB_SHOWDROPDOWN, FALSE, 0L);
}
LRESULT CToolTipCtrl::OnWindowFromPoint(WPARAM, LPARAM lParam)
{
ASSERT(lParam != NULL);
// the default implementation of tooltips just calls WindowFromPoint
// which does not work for certain kinds of combo boxes
CPoint pt = *(POINT*)lParam;
HWND hWnd = ::WindowFromPoint(pt);
if (hWnd == NULL)
return 0;
// try to hit combobox instead of edit control for CBS_DROPDOWN styles
HWND hWndTemp = ::GetParent(hWnd);
if (hWndTemp != NULL && _AfxIsComboBoxControl(hWndTemp, CBS_DROPDOWN))
return (LRESULT)hWndTemp;
// handle special case of disabled child windows
::ScreenToClient(hWnd, &pt);
hWndTemp = _AfxChildWindowFromPoint(hWnd, pt);
if (hWndTemp != NULL && !::IsWindowEnabled(hWndTemp))
return (LRESULT)hWndTemp;
return (LRESULT)hWnd;
}
