Ferns' Graphics Library V 1.2

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DEMO Version ! After registering you will receive a complete version !

Description

This functions sets the rectangular clipping region. All graphics outside
this rectangle will not be drawn. The rectangle is defined by the points
('Xleft','Ytop') and ('Xright','Ybottom').
If all 4 parameters have the value 0, the current screen width and hight
become the new 'Xright' and 'Ybottom'. 'Xleft' and 'Ytop' are 0.


Syntax

  FGL_set_viewport(< Xleft >,< Ytop >,< Xright >,< Ybottom >) -> Result.

See Also: FGL_in_viewport() FGL_get_viewport()

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