#13329: Windows CMD.EXE "Quick Edit Mode" -------------------------------------+------------------------------------- Reporter: irongremlin | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: clipboard, | Operating System: Windows quick edit | Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Behavior: When a compiled haskell executable launches into a windows 7 'cmd.exe' terminal session, it does not respect the users 'quick edit mode' setting, and launches with the system default setting instead. I have not replicated this issue on other versions of windows. Details: For a description of the feature behavior, see: https://blogs.msdn.microsoft.com/adioltean/2004/12/27/useful-copypaste- trick-in-cmd-exe/ The registry key entry controlling this setting is: HKEY_CURRENT_USER\Console\QuickEdit (1 == on, 0 ==off) Tiny illustrative program: main :: IO () putStrLn "Try to copy this text" >>=(\_ -> getLine) >>= putStrLn Additional notes: The workaround is pretty simple, launch the program from a .bat script - cmd /K myscript.exe Or from inside an existing cmd.exe session, and the problem goes away. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13329 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler