Declarationproperty OnIOProgress: TIEProgressEvent;
Occurs during input/output operations to advise the progress of the operation.
OnIOProgress is used for processing of single frames, e.g loading the content of an image (using a TImageEnIO
). It can occurs hundreds of times when filling the control as each individual image is loaded.
If OnIOProgress is specified then OnFinishWork
will occur after IO processing completes.
Also see: OnProgress
which is used for general progress (affecting the overall content of the control).