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| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version

## erase-contents-box-x-y

Arguments: stream left top right bottom

Unfills a rectangular area on stream from an upper-left position at (left, top) to a lower-right position a (right, bottom). (Unfills means to fill with the stream's background-color.) stream should be a `graphical-stream`. The other arguments should be integers. To use a box object rather than individaul coordinates, see erase-contents-box.

The filled area will include the pixels where the x coordinate is equal to left and those where the y coordinate is equal to top, but not the pixels where the x coordinate is equal to right or those where the y coordinate is equal to bottom.

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This page was not revised from the 8.2 page.
Created 2012.5.30.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version