Callback interface for TSE3 classes that provide progress information. This is used, for example, by the file import/export mechanisms (see TSE3MDL, MidiFileImport and MidiFileExport) and the Util::Demidify utility.
See also: Demidify
| void progressRange (int min, int max)
Called by a progress information generator before the first call to progress().
It defines the minimum and maximum values the progress values range between.
|min||Mimumum value returned from progess (i.e. the first value sent)|
|max||Maximum value returned from progess (i.e. the last value sent)|
| void progress (int value)
Whilst an operation is being performed by a class that uses the Progress interface, this callback will be intermittantly invoked.
Before it is called for the first time, the progressRange
method will be invoked, to give meaning to the