#vcxrv #teachmeskills #tms

vcxrv-teachmeskills.md

1. Install and setup Windows X-server

1.1 Download and install

• https://sourceforge.net/projects/vcxsrv/

1.2 Autorun vcxsrv config.xlaunch

Put this into shell:startup folder (usually %AppData%\Microsoft\Windows\Start Menu\Programs\Startup\config.xlaunch);

<?xml version="1.0" encoding="UTF-8"?>
<XLaunch WindowMode="MultiWindow" ClientMode="NoClient" LocalClient="False" Display="-1" LocalProgram="xcalc" RemoteProgram="xterm" RemotePassword="" PrivateKey="" RemoteHost="" RemoteUser="" XDMCPHost="" XDMCPBroadcast="False" XDMCPIndirect="False" Clipboard="True" ClipboardPrimary="True" ExtraParams="-screen 0 1920x1080@1" Wgl="True" DisableAC="True" XDMCPTerminate="False"/>

• reference superuser.com/questions/1372854/do-i-launch-the-app-xlaunch-for-every-login-to-use-gui-in-ubuntu-wsl-in-windows

1.3 Restart system or run config.xlaunch

2. Set DISPLAY variable inside WSL to <wsl_hostname_ip>:0 route Display remote location to host machine

2.1 Add to .bashrc or .zshrc - for WSL-based graphic applications

• ref https://stackoverflow.com/a/61110604/6875391
• will not work for Windows-based Pycharm, see 2.2a OR 2.2b

export DISPLAY=$(ip route  | awk '/default via / {print $3; exit}' 2>/dev/null):0 
export LIBGL_ALWAYS_INDIRECT=1

2.2a Set DISPLAY code of testing framework - for Windows-based Pycharm

• Set local environment variable DISPLAY for vcXsrv Chrome GUI
• reference https://stackoverflow.com/a/57403093/6875391

import subprocess
import os

def _get_wsl_host_address() -> str:
    """
    :return: ip:port for wsl host
    """
    wsl_hostname_ip = subprocess.check_output("cat /etc/resolv.conf | grep nameserver | awk '{print $2}'", shell=True)
    return f"{wsl_hostname_ip.decode('utf-8').strip()}:0"

if get_is_inside_wsl() in ["True", "true"]:
    os.environ["DISPLAY"] = _get_wsl_host_address()

2.2b Set static IP for WSL adapter - for Windows-based Pycharm

• reference https://kb.netgear.com/27476/How-do-I-set-a-static-IP-address-in-Windows
• check wsl hostname wsl hostname -I - in windows cmd
• or (better) cat /etc/resolv.conf | grep nameserver | awk '{print $2}'
• set IP set, eg. DISPLAY=172.18.80.1:0 in pycharm configuration environment settings