# Can Someone guide me about using vtkRenderWindowinteractor and vtkwin32renderwinowinteractor?

**URL:** <https://discourse.vtk.org/t/can-someone-guide-me-about-using-vtkrenderwindowinteractor-and-vtkwin32renderwinowinteractor/7414>\
**Category:** Development\
**Created:** [December 16, 2021, 11:47am UTC](https://discourse.vtk.org/t/can-someone-guide-me-about-using-vtkrenderwindowinteractor-and-vtkwin32renderwinowinteractor/7414 "2021-12-16T11:47:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Taimour](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/t/f1d935/32.png) [@Taimour](https://discourse.vtk.org/u/Taimour)\
**Post date:** [December 16, 2021, 11:47am UTC](https://discourse.vtk.org/t/can-someone-guide-me-about-using-vtkrenderwindowinteractor-and-vtkwin32renderwinowinteractor/7414/1 "2021-12-16T11:47:30Z")

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Can Someone guide me about using vtkRenderWindowinteractor and vtkwin32renderwinowinteractor?  
I am beginner at vtk libraries. Also I want to know about vtkHandle message2 function.  
Any help will be appreciated.

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**Author:** ![amaclean](https://discourse.vtk.org/user_avatar/discourse.vtk.org/amaclean/32/224_2.png) [@amaclean](https://discourse.vtk.org/u/amaclean)\
**Post date:** [December 17, 2021, 10:24pm UTC](https://discourse.vtk.org/t/can-someone-guide-me-about-using-vtkrenderwindowinteractor-and-vtkwin32renderwinowinteractor/7414/2 "2021-12-17T22:24:57Z")

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Most [vtk-examples](https://kitware.github.io/vtk-examples/site/) use `vtkRenderWindowInteractor`, so look at any of the examples on the site. Another place to start is with the documentation here: [vtkRenderWindowInteractor](https://vtk.org/doc/nightly/html/classvtkRenderWindowInteractor.html#details), there is also a short list of C++ examples there.

Regarding `vtkWin32RenderWindowInteractor` it is a subclass of `vtkRenderWindowInteractor` and is usually automatically invoked by `vtkRenderWindowInteractor`.