public static IntPtr Alloc(IGRStream stream, bool writable)
{
var payloadSize = Marshaler.SizeOf <Payload>();
var retval = Marshal.AllocHGlobal(payloadSize);
var self = StreamHolder.Instance.Register(stream);
var payload = new Payload
{
Open = Methods.Instance.Open.Item1,
Read = Methods.Instance.Read.Item1,
Seek = Methods.Instance.Seek.Item1,
Close = Methods.Instance.Close.Item1,
Write = Methods.Instance.Write.Item1,
StreamObjectRef = self
};
Marshaler.StructureToPtr <Payload>(payload, retval, false);
if (!writable)
{
Error_Control_Block ecb = new Error_Control_Block();
DocumentFiltersBase.Check(ISYS11df.IGR_Extend_Stream(retval, Methods.Instance.StreamCallback.Item1, retval, ref retval, ref ecb), ecb);
}
return(retval);
}
