OnProgress

Events

Description

OnProgress receives progress notifications from long-running library operations.

Assign an event handler when the application needs to update a progress bar, log operation progress, or keep a user interface responsive while PDFlibPas processes documents.

Syntax

Delphi

type TPDFlibProgressEvent = procedure(Progress: Integer) of object;

Property TPDFlib.OnProgress: TPDFlibProgressEvent Read FOnProgress Write FOnProgress;

Parameters

Progress	A progress value from 0 to 100. Some operations report scaled sub-progress while processing multiple files or document phases.

Remarks

The handler is called only when the operation reports progress. Keep the handler lightweight and avoid re-entering PDFlibPas from inside the event.

Set OnProgress to nil when progress callbacks are no longer needed.