- SetRectRgn( (RgnHandle) M_REGION , rect.x , rect.y , rect.x+rect.width , rect.y+rect.height ) ;
+
+#if 0 // ndef __LP64__
+ // TODO : any APIs ?
+ // OS X somehow does not collect the region invisibly as before, so sometimes things
+ // get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now
+
+ GWorldPtr gWorld = NULL;
+ GWorldPtr oldWorld;
+ GDHandle oldGDHandle;
+ OSStatus err;
+ Rect destRect = { 0, 0, 1, 1 };
+
+ ::GetGWorld( &oldWorld, &oldGDHandle );
+ err = ::NewGWorld( &gWorld, 32, &destRect, NULL, NULL, 0 );
+ if ( err == noErr )
+ {
+ ::SetGWorld( gWorld, GetGDevice() );
+
+ OpenRgn();
+
+ wxCoord x1, x2 , y1 , y2 ;
+ x2 = x1 = points[0].x ;
+ y2 = y1 = points[0].y ;
+
+ ::MoveTo( x1, y1 );
+ for (size_t i = 1; i < n; i++)
+ {
+ x2 = points[i].x ;
+ y2 = points[i].y ;
+ ::LineTo( x2, y2 );
+ }
+
+ // close the polyline if necessary
+ if ( x1 != x2 || y1 != y2 )
+ ::LineTo( x1, y1 ) ;
+
+ CloseRgn( M_REGION ) ;
+
+ ::SetGWorld( oldWorld, oldGDHandle );
+ }
+#endif