This event will occur when the mouse cursor moves into the rectangle that is defined as being the area for the window or component in question.
For a module, the event Enter occurs when the module is called with the %%Do macro. The action logic would normally proceed to %%Do or %%DoWin another module or window (normally one of its components, though no restriction is currently enforced). When program flow quits the module Enter section, the Exit event occurs unless the code generated by the macro %%NotOK has been executed.
For other objects, the event Enter occurs when the object receives the focus as a result of user action. The high level event Enter occurs after the low-level event gotFocus.
Note: The event Enter is triggered after a gotFocus event. In general, it is easier to attach event-handling code to this low-level event, than to the high level event Enter.
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