5.3 DUIM-Sheets Module
clear-box
Generic function
Summary
Clears a box-shaped area in the specified drawable.
Signature
clear-box drawable left top right bottom => ()
clear-box* drawable region => ()
Arguments
The following arguments are specific to clear-box.
- left
- An instance of type
<coordinate>. - top
- An instance of type
<coordinate>. - right
- An instance of type
<coordinate>. - bottom
- An instance of type
<coordinate>.
The following argument is specific to clear-box*.
- region
- An instance of type
<region>.
Values
None
Library
duim-sheets
Module
duim-sheets
Description
Clears a box-shaped area in the specified drawable, removing anything that was drawn in that region.
The function clear-box* is identical to clear-box, except that it passes composite objects, rather than separate coordinates, in its arguments. You should be aware that using this function may lead to a loss of performance.