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-- copyright 2020 thomas e. dickey -- -- copyright 1998-2012,2018 free software foundation, inc. --. -- permission is hereby granted, free of charge, to any person obtaining a -- -- copy of this software and associated documentation files (the -- -- "software"), to deal in the software without restriction, including -- -- without limitation the rights to use, copy, modify, merge, publish, -- -- distribute, distribute with modifications, sublicense, and/or sell copies -- -- of the software, and to permit persons to whom the software is furnished -- -- to do so, subject to the following conditions: --. -- the above copyright notice and this permission
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Trending Discussions on ncurses
QUESTION
I have a command that displays Ncurses stuffs (initscr
, printw
, addch
, ...). That's okay.
At the end (endwin
), I want to "output" (std::cout << "some string"
) a string to be processed by other command (or maybe redirected to a stream).
I want to do something like this :
ANSWER
Answered 2022-Mar-26 at 09:48Instead of initscr()
, use newterm()
. If you are already using newterm
it's just a matter of supplying a different output stream than stdout
.
initscr()
is equivalent to:
QUESTION
I've never been able to find anything about this in any language, but what I want to do seems rather simple to me.
I want to prompt the user for input, but have them fill in a sort of template. Let's use a simple DD-MM-YYYY
date as an example.
ANSWER
Answered 2022-Feb-26 at 17:28Generally what you want is a text-based GUI library, such as ncurses. Doing console work is platform-specific, and every system has its own console API to do this. If you want to implement this yourself, you would have to examine what options does your target operating system give you in terms of console API, and build a custom solution based on that.
QUESTION
I have a cli written in Haxe and compiled to a binary via C++ (hxcpp). I would like to use ncurses in it. I have worked with ncurses in C and I've worked with JS externs in Haxe but I'm can't figure out the Haxe/C++ documentation to connection the two together.
I haven't used much more of the HXCPP compiler than the basic haxe command (ie not build files etc), à la:
...ANSWER
Answered 2022-Feb-09 at 16:45HXCPP uses an xml-based build system. When you launch haxe -cp src --cpp bin/cpp path.to.Main
:
- Haxe files are transpiled to C++ and a
Build.xml
is produced in the output directory, i.e.bin/cpp/Build.xml
; - everything is then built by HXCPP, merging the newly generated project
Build.xml
with the global default xml definitions and then calling the compiler toolchain(s).
You can inject compiler flags, libraries to link, includes directories, etc., through the @:buildXml
metadata, as described on the manual:
QUESTION
How can I read user input using Term::ReadLine
without having a newline character printed out when the user presses Enter?
The reason why I want to do this is because I want to read user input from a prompt at the very bottom of the screen (as in less
or vim
). Currently, pressing Enter causes the screen to scroll down, and that can be an issue. Also, I'd like to avoid having to appeal to ncurses
at this point.
Setting
$term->Attribs->{echo_control_characters}
to 0
, undef
, or off
doesn't seem to work.
ANSWER
Answered 2022-Feb-20 at 21:42You can set the rl_getc_function
to intercept the carriage return before it is printed as shown in this question. The following works for me:
QUESTION
I have a local python project called jive
that I would like to use in an another project. My current method of using jive
in other projects is to activate the conda env for the project, then move to my jive
directory and use python setup.py install
. This works fine, and when I use conda list
, I see everything installed in the env including jive
, with a note that jive
was installed using pip.
But what I really want is to do this with full conda. When I want to use jive
in another project, I want to just put jive
in that projects environment.yml
.
So I did the following:
- write a simple
meta.yaml
so I could use conda-build to buildjive
locally - build jive with
conda build .
- I looked at the tarball that was produced and it does indeed contain the
jive
source as expected - In my other project, add jive to the dependencies in
environment.yml
, and add 'local' to the list of channels. - create a conda env using that environment.yml.
When I activate the environment and use conda list
, it lists all the dependencies including jive
, as desired. But when I open python interpreter, I cannot import jive
, it says there is no such package. (If use python setup.py install
, I can import it.)
How can I fix the build/install so that this works?
Here is the meta.yaml, which lives in the jive
project top level directory:
ANSWER
Answered 2022-Feb-05 at 04:16The immediate error is that the build is generating a Python 3.10 version, but when testing Conda doesn't recognize any constraint on the Python version, and creates a Python 3.9 environment.
I think the main issue is that python >=3.5
is only a valid constraint when doing noarch
builds, which this is not. That is, once a package builds with a given Python version, the version must be constrained to exactly that version (up through minor). So, in this case, the package is built with Python 3.10, but it reports in its metadata that it is compatible with all versions of Python 3.5+, which simply isn't true because Conda Python packages install the modules into Python-version-specific site-packages
(e.g., lib/python-3.10/site-packages/jive
).
Typically, Python versions are controlled by either the --python
argument given to conda-build
or a matrix supplied by the conda_build_config.yaml
file (see documentation on "Build variants").
Try adjusting the meta.yaml
to something like
QUESTION
From ncurses.h
...ANSWER
Answered 2022-Jan-27 at 16:24From the curs_mouse
man page:
The z member in the event structure is not presently used. It is intended for use with touch screens (which may be pressure- sensitive) or with 3D-mice/trackballs/power gloves.
Also, if you search lib_mouse.c
in the ncurses source code for ->z
and .z
, you will find that it is only ever set to zero.
QUESTION
I am searching for a way to change the:
- terminal zoom (primary)
- terminal dimensions (secondary)
using only the standard C library and established essential libraries such as and
, etc. Using ncurses is not allowed.
ANSWER
Answered 2022-Jan-12 at 14:01The Standard C library (as in ISO 9899:2018 or similar) doesn't know what a terminal is, much less how to change one. The answer to that is "NO" — the Standard C library has no such functions.
Originally (once upon a long time ago), terminals were hardware screens attached to a computer via an RS232 cable — Wyse 60 and DEC VT100 are two examples. Such terminals could not be resized — though you could sometimes change the display so that instead of 24x80 you got some larger number of columns to use.
If you're referring to a graphical terminal window on a modern Unix-based system, there probably are ways to change the size, but they involve using the insides of X11 — definitely not particularly easy, and definitely not provided by POSIX via or
; I don't think standard
or
would help either. And the mention of X11 immediately implies that it won't be portable to Windows, and what might work on Windows won't work on Unix — the API for Windows will be different.
QUESTION
I have been trying to add ncurses to Kotlin/Native using cinterop, but this error shows up:
...ANSWER
Answered 2022-Jan-06 at 23:57It looks like your include filter might be too strict. Try adding the parent directory of that header file to your cinterop file. On my Ubuntu install, it's in /usr/include/x86_64-linux-gnu
, but that's not listed in your compilerOpts.
Another note -- is there a reason to have -I/usr/include
listed twice in your file?
QUESTION
I'm writing a Pong game in C using ncurses. I placed function definitions for the ball, the player, and the AI opponent into ball.c
, player.c
, and ai.c
respectively. Each of these files includes another file, pong.h
, which contains function prototypes, structure definitions, and global variables. My main function is in pong.c
, which provides the game loop and handles keypresses.
My project also includes a number of libraries: ncurses.h
, stdlib.h
, and time.h
. Where should I include these libraries? Currently, they are included in pong.h
, like so:
ANSWER
Answered 2021-Dec-23 at 19:29Preferably, you should include the headers in the files that are actually using them even if it might be a little redundant. That way if later you remove an include to a header you defined, you can avoid compilation issues if that file happened to use stdio.h functions but didn't include it for itself.
It's also more clear at a glance of the first few lines what the file is using.
QUESTION
I am trying to create a window and print some text to it using ncurses but I am just getting a blank screen. I believe that printw()
is not working because I was able to open a working window with the same functions in the same order in a different program.
ANSWER
Answered 2021-Dec-24 at 01:02since you are printing this (I believe this is your intention) in game_window, use wprintw instead of printw:
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