How can I change this code to C# as "Struct"

[webdev]

Olaylar= record 1024Bytes = array[0..1023] of byte; OnRx: procedure(const RxBfr: 1024Bytes; const DataLen: word); stdcall; OnTx: procedure(const TxBfr: 1024Bytes; const DataLen: word); stdcall; end;