starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-02-03 21:25:34 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

[PR #11152] Add basic support for the DECRQSS settings query #28442

New Issue
Open
opened 2026-01-31 09:28:32 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 09:28:32 +00:00
Owner
Copy Link

Original Pull Request: https://github.com/microsoft/terminal/pull/11152

State: closed
Merged: Yes

This PR adds support for the DECRQSS (Request Selection or Setting)
escape sequence, which is a standard VT query for reporting the state of
various control functions. This initial implementation only supports
queries for the DECSTBM margins, and the SGR graphic rendition
attributes.

This can be useful for certain forms of capability detection (#1040). As
one example in particular, it can serve as an alternative to the
COLORTERM environment variable for detecting truecolor support
(#11057).

Of the settings that can be queried by DECRQSS, the only other one
that we could be supporting at the moment is DECSCUSR (Cursor Style).
However, that would require passing the query through to the conpty
client, which is a lot more complicated, so I thought it best to leave
for a future PR.

For now this gets the basic framework in place, so we are at least
responding to queries, and even just supporting the SGR attributes
query is useful in itself.

Validation

I've added a unit test verifying the reports for the DECSTBM and SGR
settings with a range of different parameters. I've also tested the
DECSTBM and SGR reports manually in Vttest, under menu 11.2.5.3.6
(Status-String Reports).

**Original Pull Request:** https://github.com/microsoft/terminal/pull/11152 **State:** closed **Merged:** Yes --- This PR adds support for the `DECRQSS` (Request Selection or Setting) escape sequence, which is a standard VT query for reporting the state of various control functions. This initial implementation only supports queries for the `DECSTBM` margins, and the `SGR` graphic rendition attributes. This can be useful for certain forms of capability detection (#1040). As one example in particular, it can serve as an alternative to the `COLORTERM` environment variable for detecting truecolor support (#11057). Of the settings that can be queried by `DECRQSS`, the only other one that we could be supporting at the moment is `DECSCUSR` (Cursor Style). However, that would require passing the query through to the conpty client, which is a lot more complicated, so I thought it best to leave for a future PR. For now this gets the basic framework in place, so we are at least responding to queries, and even just supporting the `SGR` attributes query is useful in itself. Validation ---------- I've added a unit test verifying the reports for the `DECSTBM` and `SGR` settings with a range of different parameters. I've also tested the `DECSTBM` and `SGR` reports manually in _Vttest_, under menu 11.2.5.3.6 (Status-String Reports).
claunia added the pull-request label 2026-01-31 09:28:32 +00:00
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 pull-request
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#28442
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?