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WT programs do not respond to arrow keys sent from the SendKeys API #10918

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opened 2026-01-31 02:33:40 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 02:33:40 +00:00
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Originally created by @outlandishwherewolf843 on GitHub (Oct 7, 2020).

Environment

Windows build number: 10.0.18362.0
Windows Terminal version 1.3.2651.0:

Any other software?

A C# program using the SendKeys API

Steps to reproduce

Write a program in C# using the SendKeys API to emulate keypresses. Use this program to attempt to send arrow keys to a program running in Windows Terminal.

Expected behavior

The program in Windows Terminal should respond as if an arrow key has been pressed. In Powershell or CMD or most shells, the cursor should move according to the arrow key that is pressed.

Actual behavior

The cursor blinks as if a key has been pressed, but will not move. The program in WT does not respond in any other way. The up and down arrow keys sent by SendKeys WILL work in the dropdown menu however. It seems like programs running in WT will respond to most other keys appropriately.

Originally created by @outlandishwherewolf843 on GitHub (Oct 7, 2020). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment ```none Windows build number: 10.0.18362.0 Windows Terminal version 1.3.2651.0: Any other software? A C# program using the SendKeys API ``` # Steps to reproduce <!-- A description of how to trigger this bug. --> Write a program in C# using the SendKeys API to emulate keypresses. Use this program to attempt to send arrow keys to a program running in Windows Terminal. # Expected behavior <!-- A description of what you're expecting, possibly containing screenshots or reference material. --> The program in Windows Terminal should respond as if an arrow key has been pressed. In Powershell or CMD or most shells, the cursor should move according to the arrow key that is pressed. # Actual behavior <!-- What's actually happening? --> The cursor blinks as if a key has been pressed, but will not move. The program in WT does not respond in any other way. The up and down arrow keys sent by SendKeys WILL work in the dropdown menu however. It seems like programs running in WT will respond to most other keys appropriately.
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Reference: starred/terminal#10918
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