Fired when an image in the ImageCollection or UndoCollection is disposed.
Atalasoft.dotImage.WinControls (in Atalasoft.dotImage.WinControls.dll) Version: 18.104.22.168.0.297 (.NET 4.5.2, x86)
This even should be handled if images are being shared. If this event contains an image that shouldn't be
disposed, set the Cancel property to true.