JVCL Help:TExtensibleInterfacedPersistent.IsStreamableExtension

 JVCL Help: TExtensibleInterfacedPersistent.IsStreamableExtension Method

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Summary

Determines if the specified extension should be stored in the form file.

Pascal

 functionIsStreamableExtension(AnExtension: TAggregatedPersistentEx): Boolean; virtual;

Parameters

Parameters	Description
AnExtension: TAggregatedPersistentEx	Extension for which to determine if it should be stored in the form file.

Description

IsStreamableExtension determines if the specified extension should be written to the form file. It's called automatically whenever an instance of this object is being written to a filer object. The base class returns True if the class reference of the extension is registered with the filing system (i.e. the class is, directly or indirectly, handed to a call to RegisterClass or RegisterClasses) and False in all other cases. Descendants can override this method to deny specific extensions being written to the form file, in addition to the check done by the base class. The method returns True if the specified extension should be written to the form file, False if it should not be written.

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