cursor%

A cursor is a small bitmap that indicates the location of the mouse pointer. The bitmap image typically indicates the current mode or meaning of a mouse click at its current location.

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% name kind hot-spot-x hot-spot-y) -> cursor% object
      name : string
      kind = 'unknown : symbol in '(unknown gif xbm xpm bmp pict)
      hot-spot-x = 0 : exact integer in [0, 10000]
      hot-spot-y = 0 : exact integer in [0, 10000]

  Creates a cursor using a bitmap. The name and kind arguments are the same as for load-file.

  The hot-spot-x and hot-spot-y arguments determine the focus point of the cursor within the cursor image, relative to its top-left corner.

  If the cursor is loaded sucessfully, ok? returns #t, otherwise the cursor object cannot be assigned to a window.

  
  

• (make-object cursor% id) -> cursor% object
      id : symbol in '(arrow bullseye cross hand ibeam watch)

  Creates a cursor using a stock cursor, specified as one of the follwing:

  • '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

  
  

• ok?