[squeak-dev] [BUG] BitBlt using combination rule Form erase1bitShape

karl ramberg karlramberg at gmail.com
Fri Mar 1 10:41:09 UTC 2019

Bug in BitBlt in 32 bit screen depth. It works when screen is set to 16 bit.

Combination rule Form erase1bitShape returns a form with all bits set to 0
in 32 bit screen depth.

...creating sketches from lasso or rubberband no longer
> works. Only rectangle snip works :-(.
> E.g.
>     World-Menu -> new morph -> grab rectangle from screen
>        draw rectangle in the balloon - drag a sketch.
>     World-Menu -> new morph -> grab lasso from screen
>        draw lasso in the balloon - no sketch
>     ditto for grab rubber band from screen.

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