Re: perform$with and object-to-display-object binding

[Marcus G. Daniels]

>>>>> "FW" == Fred Wan <address@hidden> writes:

FW> there is a method perform$with (actually a whole family). 

If you want to send different messages to the same object, where the
message itself is a parameter, you can use `perform' (or, if the
arguments are not objects, you can use FCall).  Imagine you wanted
to set a filter function on some data stream or have the user set a 
step routine, etc.

FW> In other words, if a Object2dDisplayImpl object has been created
FW> can no other object than a SimpleBug display on the ZoomRasterImpl
FW> object provided?

You can have many such displays writing to a raster.

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