starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-09-24 16:05:21 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

UIA: crash at very end of buffer #10818

New Issue
Open
opened 2026-01-31 02:31:08 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 02:31:08 +00:00
Owner
Copy Link

Originally created by @codeofdusk on GitHub (Sep 29, 2020).

Originally assigned to: @carlos-zamora on GitHub.

In the NVDA Python console (NVDA+control+z):

>>> from NVDAObjects.UIA import UIATextInfo
>>> ti=UIATextInfo(nav, "last")
>>> ti.move("character", 1)  # conhost crashes
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "NVDAObjects\UIA\__init__.pyc", line 752, in move
  File "comtypesMonkeyPatches.pyc", line 26, in __call__
_ctypes.COMError: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None))

Note: fixing this bug may result in strange behaviour from NVDA (see here, around line 53). I'll remove the offending workaround once a fix is merged to master.

I suspect #6986 would fix this bug, but I think the root cause of this crash should be investigated before then. Cc @carlos-zamora.

Originally created by @codeofdusk on GitHub (Sep 29, 2020). Originally assigned to: @carlos-zamora on GitHub. In the NVDA Python console (NVDA+control+z): ``` python console >>> from NVDAObjects.UIA import UIATextInfo >>> ti=UIATextInfo(nav, "last") >>> ti.move("character", 1) # conhost crashes Traceback (most recent call last): File "<console>", line 1, in <module> File "NVDAObjects\UIA\__init__.pyc", line 752, in move File "comtypesMonkeyPatches.pyc", line 26, in __call__ _ctypes.COMError: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None)) ``` Note: fixing this bug may result in strange behaviour from NVDA (see [here](https://github.com/nvaccess/nvda/blob/master/source/NVDAObjects/UIA/winConsoleUIA.py#L53), around line 53). I'll remove the offending workaround once a fix is merged to master. I suspect #6986 would fix this bug, but I think the root cause of this crash should be investigated before then. Cc @carlos-zamora.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
⛺ Reserved
A11yCO
A11yMAS
A11ySev1
A11ySev2
A11ySev3
A11yTTValidated
A11yUsable
A11yVoiceAccess
A11yWCAG
Area-Accessibility
Area-AtlasEngine
Area-AzureShell
Area-Build
Area-Build
Area-Chat
Area-CmdPal
Area-CodeHealth
Area-Commandline
Area-CookedRead
Area-DefApp
Area-Extensibility
Area-Fonts
Area-GroupPolicy
Area-i18n
Area-Input
Area-Interaction
Area-Interop
Area-Localization
Area-Output
Area-Performance
Area-Portable
Area-Quality
Area-Remoting
Area-Rendering
Area-Schema
Area-Server
Area-Settings
Area-SettingsUI
Area-ShellExtension
Area-ShellExtension
Area-ShellExtension
Area-Suggestions
Area-Suggestions
Area-TerminalConnection
Area-TerminalControl
Area-Theming
Area-UserInterface
Area-VT
Area-Windowing
Area-WPFControl
AutoMerge
Blocking-Ingestion
Culprit-Centennial
Culprit-WinUI
Disability-All
Disability-Blind
Disability-LowVision
Disability-Mobility
External-Blocked-WinUI3
Fixed
Gathering-Data
good first issue
HCL-E+D
HCL-WindowsTerminal
Help Wanted
Impact-Compatibility
Impact-Compliance
Impact-Correctness
Impact-Visual
In-PR
InclusionBacklog
InclusionBacklog-Windows TerminalWin32
InclusionCommitted-202206
Issue-Bug
Issue-Docs
Issue-Feature
Issue-Feature
Issue-Question
Issue-Samples
Issue-Scenario
Issue-Task
Needs-Attention
Needs-Author-Feedback
Needs-Bisect
Needs-Discussion
Needs-Repro
Needs-Tag-Fix
Needs-Tag-Fix
Needs-Triage
No-Recent-Activity
Priority-0
Priority-1
Priority-2
Priority-3
Product-Cmd.exe
Product-Colortool
Product-Colortool
Product-Colortool
Product-Conhost
Product-Conpty
Product-Meta
Product-Powershell
Product-Terminal
Product-WSL
pull-request
Mirrored from GitHub Pull Request
 Resolution-Answered
Resolution-By-Design
Resolution-Duplicate
Resolution-External
Resolution-Fix-Available
Resolution-Fix-Committed
Resolution-No-Repro
Resolution-Won't-Fix
Severity-Blocking
Severity-Crash
Severity-DataLoss
spam
this-will-be-a-breaking-change
Tracking-External
WindowsTerminal_Win32
Work-Item
zAskModeBug
zInbox-Bug
No Label Area-Accessibility Issue-Bug Needs-Tag-Fix Priority-0 Product-Conhost Resolution-Fix-Committed Severity-Crash
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
claunia
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/terminal#10818
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?