Gets a value indicating whether the slide-open effect for combo boxes is enabled.
Returns
true if the slide-open effect for combo boxes is enabled; otherwise, false.
Remarks
The is_combo_box_animation_enabled property indicates whether the slide-open effect for system control combo boxes is enabled.
When the slide-open effect for system control combo boxes is enabled, the drop down menu of a combo box slides into view when it is displayed, instead of being immediately fully drawn in view.