Not able to get window title in WSL2

Short summary

X Error of failed request: BadWindow (invalid Window parameter) Major opcode of failed request: 20 (X_GetProperty) Resource id in failed request: 0x1 Serial number of failed request: 8 Current serial number in output stream: 8

Desired execution environment / tested on

• Virtual machine
• Docker container
• Dev/Host system
• WSL2

Detailed question

I setup WSL2 on Windows 10 with Ubuntu 20.04 I know we need to do some extra setup to be able to access Windows related things from WSL2, so I setup VcXsrv to be able to access the X-Window. And I’m got success to run the sample code on the README to be able to control mouse from WSL2.

Now I’m try to access the window title and get failed. But I don’t have idea how to solve it.

const { getActiveWindow } = require('@nut-tree/nut-js')

getActiveWindow()
  .then(x => {
    console.log(x)
    return x.title
  })

Window {
  nativeActions: NativeAdapter {
    clipboard: default_1 {},
    keyboard: KeyboardAction {},
    mouse: MouseAction {},
    window: WindowAction {}
  },
  windowHandle: 1
}
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x1
  Serial number of failed request:  8
  Current serial number in output stream:  8

[s1hofmann]

To be honest, I have no experience with WSL and therefore no knowledge about how things work in detail. Would’ve to spend time to learn more about it first

[reaz1995]

@QimatLuo WSL stands for Windows Subsystem Linux, so every script/program executed via wsl is executed inside linux. You have to set displayer to get a view of Linux Desktop. If you execute script/program inside wsl nothing will hapen on Windows Dektop. 1st solution, set up displayer and execute every scripts via wsl, or 2nd solution leave wsl and do everything on Windows or 3rd bridge between wsl and windows but better chose previous options.

(your pointer was keep clicking because its shared between windows and wsl, but the screen isn’t shared, so postion of mouse will stays same, hope thats helpfull)