TsgcWSPClient_AMQP1 › Events › OnAMQPBeforeReadFrame

OnAMQPBeforeReadFrame Event

Fires for every AMQP 1.0 frame received from the peer before the component dispatches it, allowing inspection or suppression.

Syntax

property OnAMQPBeforeReadFrame: TsgcAMQP1BeforeReadFrameEvent;
// TsgcAMQP1BeforeReadFrameEvent = procedure(Sender: TObject; const aFrame: TsgcAMQP1Frame; var Handled: Boolean) of object

Default Value

—

Remarks

Low-level hook for protocol tracing and frame manipulation. aFrame is the decoded frame (Open / Begin / Attach / Flow / Transfer / Disposition / Detach / End / Close / SASL*) with its performative and optional payload populated. Set Handled := True to stop the default dispatch — useful when the application takes over processing, drops a specific performative or wants to inject a synthetic response. Leave Handled unchanged for a passive tap (logging, metrics). Runs on the reader thread.

Example

procedure TForm1.oAMQP1AMQPBeforeReadFrame(Sender: TObject;
  const aFrame: TsgcAMQP1Frame; var Handled: Boolean);
begin
  DoLog('#AMQP1 in:  ' + aFrame.ClassName);
end;

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