{\$1=x1} {\$2=y1} {\$3=x2} {\$4=y2} oops: if there are several objects identified by this receive-symbol {\,} a bang will be sent to the right. position of the main part of the object size of the main part of the object (label is normally not counted in) find the bounding box of an object identified by this receive-symbol. it must be a patchable object (not a DS item) {\,} must be contained in the same canvas as gf/object_bbox {\,} and must be the only object identified by this receive-symbol.