A graphics port.
A body of Lisp code.
with-graphics-transform combines the transform associated with the graphics port
during the body of the macro. The port is given a new transform obtained by pre-multiplying its current transform with
. This has the effect of
any translation, scaling and rotation operations specified in the body of the macro by those operations embodied in
CAPI User Guide and Reference Manual (Windows version) - 3 Aug 2017