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IDProjectCategoryView StatusDate SubmittedLast Update
0015777VTK(No Category)public2015-10-13 13:312016-08-12 09:55
Reporternormanius 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version6.2.0 
Target VersionFixed in Version 
ProjectRelease
Typeincorrect functionality
Summary0015777: Arrow-key press-events are not seen by vtkRenderWindowInteractor on Windows
DescriptionWhy are arrow key-press events not forwarded to the vtkRenderWindowInteractor on Windows? Is there a workaround? Is there a general difference between arrow-key events on Windows and Mac?

I can reproduce the problem with the sample code attached. On Mac OS, I see 'Up', 'Down', 'Left' and 'Right' if I press the arrow keys. But on Windows, I don't see anything (the callback is not entered). I wondered why this is the case.

I use VTK 6.2.0 for python 2.7. I tested on Windows Server 2012 (similar to Windows 8) and Windows 7 (on a virtual machine), showing both the same behaviour.
Steps To Reproduce
Additional Information
Tagshackaton, Interaction, python
Relationships
Attached Files? test_keypress_events.py (1,711) 2015-10-13 13:31
https://www.vtk.org/Bug/file/9926/test_keypress_events.py
? test_keypress_events_win_tested.py (1,496) 2015-10-21 15:05
https://www.vtk.org/Bug/file/9940/test_keypress_events_win_tested.py
Issue History
Date ModifiedUsernameFieldChange
2015-10-13 13:31normaniusNew Issue
2015-10-13 13:31normaniusFile Added: test_keypress_events.py
2015-10-13 13:35normaniusTag Attached: Interaction
2015-10-13 13:35normaniusTag Attached: python
2015-10-19 14:54Utkarsh AyachitTag Attached: hackaton
2015-10-21 15:03Hyun Jae KangNote Added: 0035360
2015-10-21 15:05Hyun Jae KangFile Added: test_keypress_events_win_tested.py
2015-10-21 15:06Hyun Jae KangNote Edited: 0035360bug_revision_view_page.php?bugnote_id=35360#r1361
2015-11-13 13:10normaniusNote Added: 0035450
2016-08-12 09:55Kitware RobotNote Added: 0037425
2016-08-12 09:55Kitware RobotStatusbacklog => closed
2016-08-12 09:55Kitware RobotResolutionopen => moved
2016-08-12 09:55Kitware RobotAssigned To => Kitware Robot

Notes
(0035360)
Hyun Jae Kang   
2015-10-21 15:03   
(edited on: 2015-10-21 15:06)
Please use the keyword of "KeyPressEvent" instead of "CharEvent" in the function of AddObserver as following:

- self.AddObserver("CharEvent",self.onKeyPressEvent)
+ self.AddObserver("KeyPressEvent",self.onKeyPressEvent)

I tested the script file on Windows 7 and vtk 6.3.

Please check the attached file of "test_keypress_events_win_tested.py"
(0035450)
normanius   
2015-11-13 13:10   
Indeed - this fixed my issue. Many thanks!
(0037425)
Kitware Robot   
2016-08-12 09:55   
Resolving issue as `moved`.

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