All I see is that you have declared types s (2-byte value) where
Microsoft says there should be a DWORD - isn't that a 4-byte value?
Henry Rich
On 7/18/2021 11:09 AM, Michal Wallace wrote:
As I mentioned yesterday, I'm working on a terminal interface for J.
I have it working well on linux [1], but windows is giving me trouble.
I'm basically calling two DLL functions:
NB. https://docs.microsoft.com/en-us/windows/console/readconsoleinput
ReadConsoleInput =: 'kernel32 ReadConsoleInputA b x *s s *s'&cd
NB. https://docs.microsoft.com/en-us/windows/console/writeconsole
WriteConsole =: 'kernel32 WriteConsoleA b x *c s *s'&cd
And they work great... sometimes... And then other times they just crash J.
For example, here I am just manually emitting the terminal escape code that
triggers the console to report the cursor coordinates. It works a couple
times, and then it crashes:
JVERSION
Engine: j902/j64avx2/windows
Release-b: commercial/2021-02-18T12:07:41
Library: 9.02.08
Platform: Win 64
Installer: J902 install
InstallPath: c:/program files/j902
Contact: www.jsoftware.com
load'd:/ver/b4/j/vt.ijs'
{{ 2}. wfc'R' [ puts CSI,'6n' }}''
12;1
{{ 2}. wfc'R' [ puts CSI,'6n' }}''
14;1
{{ 2}. wfc'R' [ puts CSI,'6n' }}''
16;1
{{ 2}. wfc'R' [ puts CSI,'6n' }}''
[process exited with code 3221225477]
('puts' is passing a string to WriteConsole, and 'wfc' basically calls
ReadConsoleInput repeatedly... until the given character is passed in.)
Any idea what could be going wrong here?
The full code is here:
https://github.com/sabren/b4/blob/6e2c87b2b2b87be88b0f8995d0f84e5f7afd7d92/j/vt.ijs
[1] animated demo of linux version: https://imgur.com/gallery/QYrgkPj
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