Language Reference Guide : Events : MouseEnter Event
 
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MouseEnter Event
The MouseEnter event occurs when the mouse cursor enters an ActiveField. A corresponding MouseExit event occurs when the mouse cursor leaves the field.
MouseEnter events do not occur when the mouse is captured (that is, during a drag-and-drop operation). If a MouseEnter event occurs and the corresponding MouseExit event has not occurred when the mouse is captured, a MouseExit event will be generated when the mouse becomes captured. Thus, every MouseEnter event is followed by a matching MouseExit event. When a MouseExit event is generated because the mouse becomes captured, the associated ReasonCode is RC_MOUSECAPTURED.
This event has the following syntax:
on MouseEnter [activefieldname]
The following attributes of the FrameExec class can be used in the MouseEnter event block:
TriggerField
Specifies the field that the mouse cursor entered
OriginatorField
Specifies the field specified in the on MouseEnter statement
More information:
ChildMouseEnter Event
MouseExit Event
OriginatorField Attribute
OriginatorField Attribute
TriggerField Attribute