ninterior

Arguments: window-or-screen box

Returns box after modifying it to equal the interior box of window-or-screen. The box is relative to the upper-left corner of the "page" of the parent window, or of the screen if there is no parent window. (A "page" is the logical canvas of a window, on which drawing is done and which is sometimes scrollable. So if the parent window is not scrolled, then the box is relative to the upper-left corner of the parent's interior.) The unit of measurement is pixels.

The screen is the value returned by (screen *system*). See screen and *system*. For the screen, the interior is the area that excludes the taskbar.

box must be a box. See make-box.

Contrast with interior which creates a new box to return.

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Created 2019.8.20.