+ DoForAllWindows(&wxToolTip::DoSetTip);
+}
+
+void wxToolTip::DoSetTip(WXHWND hWnd)
+{
+ // update the tip text shown by the control
+ wxToolInfo ti((HWND)hWnd, m_id, m_rect);
+
+ // for some reason, changing the tooltip text directly results in
+ // repaint of the controls under it, see #10520 -- but this doesn't
+ // happen if we reset it first
+ ti.lpszText = const_cast<wxChar *>(wxT(""));
+ (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, &ti);
+
+ ti.lpszText = wxMSW_CONV_LPTSTR(m_text);
+ (void)SendTooltipMessage(GetToolTipCtrl(), TTM_UPDATETIPTEXT, &ti);
+}
+
+void wxToolTip::DoForAllWindows(void (wxToolTip::*func)(WXHWND))
+{