Am 26.11.2025 um 11:32 schrieb Takashi Yano via Cygwin:
On Fri, 21 Nov 2025 17:58:01 +0100
Thomas Wolff wrote:
Am 21.11.2025 um 17:46 schrieb Corinna Vinschen via Cygwin:
Hi Thomas,
On Nov 21 16:46, Thomas Wolff via Cygwin wrote:
Am 21.11.2025 um 11:04 schrieb Takashi Yano via Cygwin:
On Sun, 5 Oct 2025 10:15:55 +0200
Thomas Wolff wrote:
The procedure seems to be:
try LoadLibrary("conpty.dll"), (if not successful, fallback to
GetModuleHandle("kernel32") instead) to retrieve GetProcAddress for
CreatePseudoConsole, ResizePseudoConsole, ClosePseudoConsole, and
then somehow (?) use those while calling CreateProcess.
The latter is woven into the cygwin library and I don't think it's a
good idea to clone that out of cygwin for a patched process creation
in mintty.
My question/suggestion:
Can a cygwin mode switch to a selected conpty library instead of the
default one please?
Where do you expect this conpty.dll to reside?
If we do something like that, I would suggest to make sure that this
conpty.dll is in a well-defined place. /bin or /lib might be a good
idea. And if it exists in this defined place, it will be used by Cygwin.
We can tweak the autoload mechanism to allow a primary DLL and a fallback
DLL, that drops the need to set the CYWIN env var.
The mintty package could contain a post-install script, or some other
script in /bin to allow a user with admin rights downloading the latest
(or the most sensible) conpty.dll from MSFT.
Would that make sense?
Corinna
That makes much sense, yes, thank you. /bin/conpty.dll would probably be
a good place.
I checked the source of conpty.dll
https://github.com/microsoft/terminal/blob/main/src/winconpty/winconpty.cpp
conpty.dll seems to launch OpenConsole.exe in the directory where
WindowsTerminal is installed.
However, BUILTIN\Users does not have permission to execute OpenConsole.exe.
Do you have some idea how to solve this problem?
WindowsTerminal itself can launch OpenConsole.exe, so there should be
some solutions, I think.
Did you install the nuget package? It can be extracted with zip, so you
can install OpenConsole as a normal program...
I did not find a way, though, to invoke it explicitly so that it would
solve the pty interworking problems.
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