Occurs when middle volume should be inserted while extracting or testing a multi-volume archive.
type TZFOnRequestMiddleVolumeEvent = procedure(
Sender: TObject;
VolumeNumber: Integer;
var VolumeFileName: String;
var Cancel: Boolean
) of object;
property OnRequestMiddleVolume: TZFOnRequestMiddleVolumeEvent;
Description
Write an OnRequestMiddleVolume event handler to perform asking the user for inserting a middle volume of the multi-volume archive. See also OnRequestFirstVolume and OnRequestLastVolume events.
VolumeNumber specifies a number of the volume that should be inserted.
Also you can override default file name for this volume. Use Cancel to abort current operation.