How to resolve the algorithm Terminal control/Dimensions step by step in the Python programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Terminal control/Dimensions step by step in the Python programming language

Table of Contents

Problem Statement

Determine the height and width of the terminal, and store this information into variables for subsequent use.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Terminal control/Dimensions step by step in the Python programming language

The Python script uses platform-specific methods to determine the width and height of the terminal window:

  1. For Windows (with os.name == 'nt'), it uses the GetConsoleScreenBufferInfo function from the ctypes library to get the console screen buffer information. It retrieves the width and height from the returned CONSOLE_SCREEN_BUFFER_INFO structure.

  2. For Linux (with os.name == 'posix'), it uses the tput command-line utility to get the terminal dimensions. It calls tput cols to get the width and tput lines to get the height, then converts the string results to integers.

The script then prints the terminal dimensions using the appropriate platform-specific method. This approach ensures that it accurately determines the terminal size regardless of the operating system.

Source code in the python programming language

import os

def get_windows_terminal():
    from ctypes import windll, create_string_buffer
    h = windll.kernel32.GetStdHandle(-12)
    csbi = create_string_buffer(22)
    res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)

    #return default size if actual size can't be determined
    if not res: return 80, 25 

    import struct
    (bufx, bufy, curx, cury, wattr, left, top, right, bottom, maxx, maxy)\
    = struct.unpack("hhhhHhhhhhh", csbi.raw)
    width = right - left + 1
    height = bottom - top + 1

    return width, height

def get_linux_terminal():
    width = os.popen('tput cols', 'r').readline()
    height = os.popen('tput lines', 'r').readline()

    return int(width), int(height)

print get_linux_terminal() if os.name == 'posix' else get_windows_terminal()


  

You may also check:How to resolve the algorithm Copy a string step by step in the R programming language
You may also check:How to resolve the algorithm String prepend step by step in the Scala programming language
You may also check:How to resolve the algorithm Loops/Continue step by step in the zkl programming language
You may also check:How to resolve the algorithm Count in factors step by step in the R programming language
You may also check:How to resolve the algorithm Sum of elements below main diagonal of matrix step by step in the APL programming language