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How to modify the buffer height when debugging the console exe?? #20352

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opened 2026-01-31 07:11:11 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 07:11:11 +00:00
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Originally created by @wxuefei on GitHub (Aug 10, 2023).

Description of the new feature/enhancement

I can modify the console buffer height use the below code when I debugging the console exe with VC & cmd, but it doesn't work in WindowsTerminal, the buffer height seems always is 9030, how to modify it ?

system("mode con:cols=120 lines=20000");

or

SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), { 120,20000 });

Proposed technical implementation details (optional)

Originally created by @wxuefei on GitHub (Aug 10, 2023). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 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! --> # Description of the new feature/enhancement I can modify the console buffer height use the below code when I debugging the console exe with VC & cmd, but it doesn't work in WindowsTerminal, the buffer height seems always is 9030, how to modify it ? system("mode con:cols=120 lines=20000"); or SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), { 120,20000 }); <!-- A clear and concise description of what the problem is that the new feature would solve. Describe why and how a user would use this new functionality (if applicable). --> # Proposed technical implementation details (optional) <!-- A clear and concise description of what you want to happen. -->
claunia added the Issue-FeatureNeeds-TriageNeeds-Tag-FixNeeds-Author-Feedback labels 2026-01-31 07:11:12 +00:00
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Reference: starred/terminal#20352
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