Bug 331040 - Mouse Wheel does not work in Eclipse Editor, unless a registry key is added
Summary: Mouse Wheel does not work in Eclipse Editor, unless a registry key is added
Status: NEW
Alias: None
Product: Platform
Classification: Eclipse Project
Component: SWT (show other bugs)
Version: 3.6   Edit
Hardware: PC Windows 7
: P3 minor (vote)
Target Milestone: ---   Edit
Assignee: Platform-SWT-Inbox CLA
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Reported: 2010-11-24 11:55 EST by Robert Vice CLA
Modified: 2019-09-06 15:30 EDT (History)
4 users (show)

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Description Robert Vice CLA 2010-11-24 11:55:56 EST
Build Identifier: 200606261600

Apparently, there is an issue with the new Microsoft Mouse Drivers that increase the resolution of "some" mice. I have an Microsoft Comfort Optical Mouse 3000 that demonstrates the problem of not scrolling.

Behavior:
Scrolling normally -> No Response
Scrolling extremely fast -> Runs to the top or bottom of the document in the desired direction. Ultimately, uncontrollable.

The fix, is to add to the HID Registry Key for the Mouse
VScrollHighResolutionDisable = 1
HScrollHighResolutionDisable = 1

Behavior with the fix:
As expected.

Notes: Scrolling works with Code Composure Studio (Eclipse IDE?) and other applications with the exception of a board layout software that demonstrates the same problem.

Reproducible: Always

Steps to Reproduce:
1. Make sure the registry is not already worked around. Check the HID DeviceProperties for VScrollHighResolutionDisable key in the registry and set it to 0 if it is set to 1. Then reboom
2. Scroll mouse wheel slow to normal, it should not move. Now move very fast, it might move or scroll to the top or bottom of the document.
3.
Comment 1 Anton Leherbauer CLA 2010-11-25 02:28:31 EST
(In reply to comment #0)
> Build Identifier: 200606261600
Could you clarify which version of Eclipse you are using?

In any case this is something for SWT.  I doubt that this behavior is specific to the CDT editor.
Comment 2 Felipe Heidrich CLA 2010-11-25 11:16:23 EST
Please test with eclipse 3.6.
We fixed problems with high resolution mices sometime last year.
Comment 3 Eclipse Webmaster CLA 2019-09-06 15:30:17 EDT
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.