TAsyncProcess.OnReadData property

Declaration

property OnReadData: TNotifyEvent read FOnReadData write FOnReadData;

Description

OnReadData is a TNotifyEvent property that implements the event handler signalled when data is available for the process. Applications should assign a procedure to the event handler that responds to the pipe notification. The procedure must handle all data available on the Output handle up to the number of bytes in NumBytesAvailable. All available data must be handled, or the procedure will be called repeatedly until no more data is available.

OnReadData is signalled (when assigned) from the HandlePipeInput method when the prDataAvailable flag is found in the parameters passed to the method.

See also

• NumBytesAvailable
• TPipeReason
• TProcess.Output
• TNotifyEvent