JET_CALLBACK delegate

A multi-purpose callback function used by the database engine to inform the application of an event involving online defragmentation and cursor state notifications.

Namespace:  Microsoft.Isam.Esent.Interop
Assembly:  Microsoft.Isam.Esent.Interop (in Microsoft.Isam.Esent.Interop.dll)

Syntax

'Declaration
Public Delegate Function JET_CALLBACK ( _
    sesid As JET_SESID, _
    dbid As JET_DBID, _
    tableid As JET_TABLEID, _
    cbtyp As JET_cbtyp, _
    arg1 As Object, _
    arg2 As Object, _
    context As IntPtr, _
    unused As IntPtr _
) As JET_err
'Usage
Dim instance As New JET_CALLBACK(AddressOf HandlerMethod)

public delegate JET_err JET_CALLBACK(
    JET_SESID sesid,
    JET_DBID dbid,
    JET_TABLEID tableid,
    JET_cbtyp cbtyp,
    Object arg1,
    Object arg2,
    IntPtr context,
    IntPtr unused
)

Parameters

• sesid
  Type: Microsoft.Isam.Esent.Interop.JET_SESID

  The session for which the callback is being made.

• dbid
  Type: Microsoft.Isam.Esent.Interop.JET_DBID

  The database for which the callback is being made.

• tableid
  Type: Microsoft.Isam.Esent.Interop.JET_TABLEID

  The cursor for which the callback is being made.

• cbtyp
  Type: Microsoft.Isam.Esent.Interop.JET_cbtyp

  The operation for which the callback is being made.

• arg1
  Type: System.Object

  First callback-specific argument.

• arg2
  Type: System.Object

  Second callback-specific argument.

• context
  Type: System.IntPtr

  Callback context.

• unused
  Type: System.IntPtr

  This parameter is not used.

Return value

Type: Microsoft.Isam.Esent.Interop.JET_err

See also

Reference

Microsoft.Isam.Esent.Interop namespace