Handle type
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Value of PREV-SIBLING
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Asynchronous Request
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The handle of the previous asynchronous request submitted for execution on the AppServer or Web Server that is running the specified request.
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Procedure
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The handle of the previous persistent procedure in the current ABL session. If the current procedure is a proxy for a persistent procedure running on an AppServer or for a Web service, specifies the previous procedure object bound to the same server handle.
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Server
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The previous server handle created in the current ABL session (independent of subtype).
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Socket and Server-socket
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The previous socket handle in the chain of socket handles for the current ABL session. Returns the Unknown value (?) for the first handle in the chain.
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Widget
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The handle of the previous widget in the widget list.
Note: A widget must first be realized before it can become part of the list. A hidden widget cannot become part of the list since it is not realized. A widget that is already part of the list can be hidden and it remains part of the list.
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