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TThreadExecuteStatusCallBack procedure type

In unit Classes

Signature of procedure to execute in a thread, with status reporting.

Declaration

pascal
TThreadExecuteStatusCallBack = procedure(AData: Pointer; 
 ReportStatus: TThreadReportStatus)

Description

TThreadExecuteStatusCallBack is the signature of a procedure to be used when executing something in a thread using ExecuteInThread when status reporting is required.

On entry in the method, AData is the AData parameter passed to ExecuteInThread. ReportStatus is passed to the method, and the threaded procedure can call ReportStatus at various stages to report about the status of the method: The status will be reported to the main thread using synchronize, so calls to ReportStatus will be blocked as long as the status was not reported.

See also

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.