+bool wxMacControl::SetBackgroundStyle(wxBackgroundStyle style)
+{
+ if ( style != wxBG_STYLE_PAINT )
+ {
+ OSStatus err = HIViewChangeFeatures(m_controlRef , 0 , kHIViewIsOpaque);
+ verify_noerr( err );
+ }
+ else
+ {
+ OSStatus err = HIViewChangeFeatures(m_controlRef , kHIViewIsOpaque , 0);
+ verify_noerr( err );
+ }
+
+ return true ;
+}
+