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Belgian Amiga Club - ADF Collection
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BS1 part 71
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X-Cad3000_d5.adf
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1991-11-22
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3.2.4 CHANGE VIEWPORT
The CHANGE VIEWPORT command is used to change the clipping rectangle or
boundary of a viewport. The clipping rectangle for a viewport can only be
made smaller than its original definition. Once a viewport has been defined,
its size cannot be increased.
COMMAND FORMAT
#CHANGE VIEWPORT :View x1 :Loc x2 x3
or
#CHANGE VIEWPORT FULL :View x1
If the FULL modifier is omitted, the required view is identified by 'x1'.
The two locations 'x2' and 'x3' define the extents of a window which will
become the new clipping rectangle for the viewport. The window definition
must be inside the identified viewport. ( See fig. 3.5 ).
MODIFIERS
FULL The FULL modifier is used to change the viewport clipping
rectangle to its full size - the original viewport definition
size. The viewport can be identified via IDENTS, or the
VIEWPORT modifier can be used to identify a viewport by name.
.VIEWPORT The name of a viewport.