A cursor is assigned to each window (or the window may use its parent’s cursor; see set-cursor for more information), and the pointer image is changed to match the window’s cursor when the pointer is moved over the window. Each cursor object may be assigned to many windows.
(make-object cursor% image mask [ hot-spot-x hot-spot-y]) → (is-a?/c cursor%) image : (is-a?/c bitmap%) mask : (is-a?/c bitmap%) hot-spot-x : (integer-in 0 15) = 0 hot-spot-y : (integer-in 0 15) = 0 (make-object cursor% id) → (is-a?/c cursor%)
id :
(one-of/c 'arrow 'bullseye 'cross 'hand 'ibeam 'watch 'blank 'size-n/s 'size-e/w 'size-ne/sw 'size-nw/se)
The second case creates a cursor using a stock cursor, specified as one of the following:
'arrow —
the default cursor 'bullseye —
concentric circles 'cross —
a crosshair 'hand —
an open hand 'ibeam —
a vertical line, indicating that clicks control a text-selection caret 'watch —
a watch or hourglass, indicating that the user must wait for a computation to complete 'arrow+watch —
the default cursor with a watch or hourglass, indicating that some computation is in progress, but the cursor can still be used 'blank —
invisible 'size-e/w —
arrows left and right 'size-n/s —
arrows up and down 'size-ne/sw —
arrows up-right and down-left 'size-nw/se —
arrows up-left and down-right
If the cursor is created successfully, ok? returns #t, otherwise the cursor object cannot be assigned to a window.