npage-box

Arguments: stream box

Returns box after modifying it to be the box representing the whole page of stream, relative to the current origin. This is the entire area that can be drawn onto or scrolled into the visible area. stream should be a cg-stream.

If the stream-origin of a window has not been changed from its usual position at 0, 0, then the left and top of the npage-box will each be zero, and the right and bottom will be the page-width and page-height of the window. Otherwise the origin position is subtracted from that box to obtain the npage-box.

This is the destructive version of page-box, which creates and returns a new box object. See make-box.

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Created 2019.8.20.