Indicates if this drag operation is originated using the mouse wheel and not a mouse/touch down event.
Object.defineProperty(InteractiveDragEventArgs.prototype, 'isMouseWheel',
get: function(),
set: function(value)
)
isMouseWheel: boolean;
true if this drag operation is originated using the mouse wheel and not a mouse/touch down event; otherwise false.
If the interactive mode does not support dragging using the mouse wheel, then it must check the value of IsMouseWheel and not start the operation if the value is true.
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