_Added in 1.9.0_

*/drawrot -hmnbfc <@window> [color] <angle> [x y w h]*

Rotates an area of a bitmap by the specified angle.

*Switches*

-b - Indicates that you have specified the background color value. (The [colors] is always in [[$rgb]] format)
-f - TODO
-c - centers the rotated image if -f is not specified.
-m - Changes the stretch mode quality when the picture is resized.

*Parameters*

<@window> - Name of the window to rotate.
[color] - The background color to use if -b is defined.
<angle> - The angle of the rotation.
[x y w h] - The area to rotate.