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ISxDocumentEvents.BeforeCloseDocument Event (ArcObjects .NET 10.6 SDK)

ArcObjects Library Reference (ArcScene)

ISxDocumentEvents.BeforeCloseDocument Event

Fired before a document is closed. Return True to abort the close process.

[Visual Basic .NET]
Public Event BeforeCloseDocument As BeforeCloseDocumentEventHandler

[C#]
public event BeforeCloseDocumentEventHandler BeforeCloseDocument

Available with ArcGIS Desktop. Requires 3D Analyst Extension.