RAD Studio VCL Reference
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TSQLMonitor.OnTrace Event

Occurs when a message is detected but before it is logged to the list.

Pascal
property OnTrace: TTraceEvent;
C++
__property TTraceEvent OnTrace;

Write an OnTrace event handler to screen or edit messages before they are added to TraceList. OnTrace occurs for every message that passes between the dbExpress driver and the database server, not just those that meet the criteria specified by TraceFlags. 

 

TraceList 

OnLogTrace 

TraceFlags

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