bitmap-invert!

Synopsis

(bitmap-invert! bitmap)

Parameters

Description

Side Effects

The bitmap is destructively inverted.

Return Value

The bitmap is returned.

Example

> (define bm (bitmap-create 10 10))
bm
> (bitmap-invert! bm)
#<bitmap orow:-1 ocol:-1 xres:-1 yres:-1 h:10 w:10>
>