如何在Windows PC上使用python脚本在Unix上截屏？

Question

Am trying to take a screenshot of UNIX server from my Windows PC. My command is not working it seems. When I try the same command on terminal it saves the file, however it is not with my below code.

import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(sftp_server, username=sftp_login, password=sftp_password)
stdin, stdout, stderr = ssh.exec_command("xwd -root | convert xwd:- screenshot22.jpg")

sftp = ssh.open_sftp()
transport = paramiko.Transport((sftp_server, sftp_port))
transport.connect(username = sftp_login, password = sftp_password)
sftp = paramiko.SFTPClient.from_transport(transport)
sftp.get("screenshot22.jpg", 'screenshot22.jpg', None)

sftp.close()
ssh.close()

Note: 1. xwd is installed on my UNIX Server. 2. Tried Import command, but that takes (2nd desktop of UNIX, not the one am trying to)

Answer 1

With the help of @Christopher Apple, I have figured out a way.

The working source code is,

import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(sftp_server, username=sftp_login, password=sftp_password)
stdin, stdout, stderr = ssh.exec_command("xwd -out screenshot.xwd -root -display :0.0")
stdin, stdout, stderr = ssh.exec_command("convert screenshot.xwd screenshot22.jpg")

sftp = ssh.open_sftp()
transport = paramiko.Transport((sftp_server, sftp_port))
transport.connect(username = sftp_login, password = sftp_password)
sftp = paramiko.SFTPClient.from_transport(transport)
sftp.get("screenshot22.jpg", 'screenshot22.jpg', None)
sftp.close()
ssh.close()