+ // common part of the 3 functions above: pass wxNullColour to use the
+ // appropriate background colour (meaning ours or our parents) or a fixed
+ // one
+ virtual WXHBRUSH DoMSWControlColor(WXHDC pDC, wxColour colBg);
+
+ // another WM_CTLCOLOR-related function: override this to return the brush
+ // which should be used to paint the control background by default
+ //
+ // for most controls, the default behaviour of returning 0 and letting the
+ // system do it is correct, but for some -- e.g. checkboxes -- we actually
+ // have to return transparent brush from here to prevent the system from
+ // overwriting background with solid colour
+ virtual WXHBRUSH MSWGetDefaultBgBrush() { return 0; }
+
+ // this is a helper for the derived class GetClassDefaultAttributes()
+ // implementation: it returns the right colours for the classes which
+ // contain something else (e.g. wxListBox, wxTextCtrl, ...) instead of
+ // being simple controls (such as wxButton, wxCheckBox, ...)
+ static wxVisualAttributes
+ GetCompositeControlsDefaultAttributes(wxWindowVariant variant);
+
+ // for controls like radiobuttons which are really composite this array
+ // holds the ids (not HWNDs!) of the sub controls
+ wxArrayLong m_subControls;
+
+private:
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxControl)
+};
+
+#endif // _WX_CONTROL_H_