i added a function that makes it possible to change the shape of the mouse cursor. for example:
(set-cursor 'crosshair) the image name symbols can consist of: 'right-arrow, 'left-arrow, 'info, 'destroy, 'help, 'cycle, 'spray, 'wait, 'text, 'crosshair, 'up-down, 'left-right, 'top-side, 'bottom-side, 'left-side, 'right-side, 'top-left-corner, 'top-right-corner, 'bottom-right-corner, 'bottom-left-corner, 'full-crosshair, 'none, 'inherit the default cursor image symbol when the window is created is 'inherit. best, gabor
