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This event is fired during data reading/writing to report operation progress.


    event TSBProgressEvent OnProgress;
    delegate void TSBProgressEvent(Object Sender, long Total, long Current, ref bool Cancel);

    Event OnProgress As TSBProgressEvent
    Delegate Sub TSBProgressEvent(ByVal Sender As Object, ByVal Total As Long, ByVal Current As Long, ByRef Cancel As Boolean)

    property OnProgress: TSBProgressEvent;
    TSBProgressEvent = procedure(Sender : TObject; Total, Current : Int64; var Cancel : boolean) of object;

    void get_OnProgress(TSBProgressEvent &pMethodOutResult, void * &pDataOutResult);
    void set_OnProgress(TSBProgressEvent pMethodValue, void * pDataValue);
    typedef void (SB_CALLBACK *TSBProgressEvent)(void * _ObjectData, TObjectHandle Sender, int64_t Total, int64_t Current, int8_t &Cancel);

    TSBProgressEvent|callable|NULL get_OnProgress()
    void set_OnProgress(TSBProgressEvent|callable|NULL $Value)
    callable TSBProgressEvent(TObject $Sender, integer $Total, integer $Current, bool &$Cancel)

    TSBProgressEvent getOnProgress();
    void setOnProgress(TSBProgressEvent Value);
    TSBProgressEvent.Callback OnProgress = new TSBProgressEvent.Callback() {
        public void TSBProgressEventCallback(TObject Sender, long Total, long Current, TSBBoolean Cancel) {


  • Total - request total size
  • Current - specifies how much data has been sent/received already
  • Cancel - allows to cancel the operation


    This event is fired by TElSftpClient in order to show read/write operation progress.

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