[vtkusers] question of deprecated methods.

[Dongbai Guo]

I have an older copy of VTK (2.4?) that a program compiled on.
trying to migrate to 4.2
Some methods perhaps have been deprecated.
For example:
use to have:
vtkImageReader::SetDataVOI(...).
This method has gone. Perhaps superseded by:
vtkImageReader2::SetDataExtent(...).

I couldn't remember what the definition/functionality for SetDataVOI was
and how it differs from SetDataExtent. Is there a place I can download
older documentation/check how methods get deprecated and replaced
by which?

thanks
Dongbai