Chapter 14: Working with User Objects

Events in user objects

When you build a user object, you can write scripts for any event associated with that user object.

Events in class user objects

Most custom class user objects have only constructor and destructor events.

**Table 14-1: Events for custom class user objects**
Event	Occurs when
Constructor	The user object is created
Destructor	The user object is destroyed

Standard class user objects have the same events as the PocketBuilder system object from which they inherit.

Events in visual user objects

Standard visual user objects have the same events as the PocketBuilder control from which they inherit. Custom user objects have a common set of events.

**Table 14-2: Events for custom visual user objects**
Event	Occurs when
Constructor	Immediately before the Open event of the window and when the user object is dynamically placed in a window
Destructor	Immediately after the Close event of the window and when the user object is dynamically removed from a window
DragDrop	A dragged object is dropped on the user object
DragEnter	A dragged object enters the user object
DragLeave	A dragged object leaves the user object
DragWithin	A dragged object is moved within the user object
Other	A Windows message occurs that is not a PocketBuilder event
RButtonDown	The right mouse button is pressed (desktop), or a tap-and-hold action is executed on the control (Pocket PC device)

For more about drag and drop events, see the chapter in the Resource Guide on using drag and drop in a window.

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