Format
MouseWheel(object,delta_x,delta_y,location,control,params)
Args
object
: the object under the mouse pointerdelta_x,delta_y
: amount of wheel movementlocation
: the turf, stat panel, grid cell, etc. containing the objectcontrol
: the name of the skin control involvedparams
: other parameters including mouse/keyboard flags, icon offsets, etc.; see mouse handling
Default action
Call object.MouseWheel(delta_x,delta_y,location,control,params).
This is called when the mouse wheel is moved while over an object or control. It is NOT called if over a browser control, or any control that is currently scrollable.
Positive values of delta_x and delta_y refer to scrolling right or up, respectively. Negative values are left and down, respectively.
Don’t define this unless you need it, because it generates extra communication that is otherwise avoided. If you only need wheel support on specific objects, use atom.MouseWheel() instead which is more selective.
The argument format for this verb is:
MouseWheel(object as null|atom in usr.client,\
delta_x as num, delta_y as num,\
location as null|turf|text in usr.client,\
control as text, params as text)