asCursorForm

beCursor

Primitive. Tell the interpreter to use the receiver as the current cursor
image. Fail if the receiver does not match the size expected by the
hardware. Essential. See Object documentation whatIsAPrimitive.

hasMask

maskForm

setMaskForm:

storeOn:base:

Store the receiver out as an expression that can be evaluated to recreate a Form with the same contents as the original.

withMask