+ ::GetWindowRect(child, &rc);
+ if ( ::RectInRegion(hrgn, &rc) )
+ {
+ // need to remove WS_CLIPSIBLINGS from all sibling windows
+ // that are within this staticbox if set
+ if ( style & WS_CLIPSIBLINGS )
+ {
+ style &= ~WS_CLIPSIBLINGS;
+ ::SetWindowLong(child, GWL_STYLE, style);
+
+ // MSDN: "If you have changed certain window data using
+ // SetWindowLong, you must call SetWindowPos to have the
+ // changes take effect."
+ ::SetWindowPos(child, NULL, 0, 0, 0, 0,
+ SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
+ SWP_FRAMECHANGED);
+ }
+
+ AutoHRGN hrgnChild(::CreateRectRgnIndirect(&rc));
+ ::CombineRgn(hrgn, hrgn, hrgnChild, RGN_DIFF);
+ }
+ }
+
+ return (WXHRGN)hrgn;
+}
+
+// helper for OnPaint(): really erase the background, i.e. do it even if we
+// don't have any non default brush for doing it (DoEraseBackground() doesn't
+// do anything in such case)
+void wxStaticBox::PaintBackground(wxDC& dc, const RECT& rc)
+{
+ // note that we do not use the box background colour here, it shouldn't
+ // apply to its interior for several reasons:
+ // 1. wxGTK doesn't do it
+ // 2. controls inside the box don't get correct bg colour because they
+ // are not our children so we'd have some really ugly colour mix if
+ // we did it
+ // 3. this is backwards compatible behaviour and some people rely on it,
+ // see http://groups.google.com/groups?selm=4252E932.3080801%40able.es
+ wxWindow *parent = GetParent();
+ wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
+ HBRUSH hbr = (HBRUSH)parent->MSWGetBgBrush(impl->GetHDC(), this);
+
+ // if there is no special brush for painting this control, just use the
+ // solid background colour
+ wxBrush brush;
+ if ( !hbr )