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Programming Interfaces
Input/Output Processes : Handling User Input : Using mouse buttons and events : Specifying mouse events
Specifying mouse events
When choosing the events to associate with a trigger, use portable mouse events whenever possible. If you use these events, ABL automatically maps the event to the mouse key the native window system uses to perform the same event. For example, if OpenEdge supports a future window system that uses the right button as the selection button, the MOUSE–SELECT–CLICK event will automatically map to the right button for that system, while still mapping to the left button for Windows.
* Portable and three-button event priority
* Low-level and high-level events