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TCustomZStream.OnProgress Event
TCustomZStream Class | TCustomZStream Members | ZLib Namespace | Description | See Also
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Occurs when reading or writing a large block of data in a single call.

Pascal
property OnProgress: TNotifyEvent;
C++
__property TNotifyEvent OnProgress;
Description

Classes derived from TCustomZStream can use the OnProgress event to perform some action during a long read or write operation. 

For example, the TCompressionStream class calls the OnProgress event handler, after the stream's output buffer has been filled and subsequently written. Similarly, the TDecompressionStream class calls the OnProgress event handler when its input buffer has been filled and is ready to be decompressed. 

 

See Also
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