console-snoop.py

import sys
import msvcrt
import ctypes

ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004

kernel32 = ctypes.WinDLL("kernel32", use_last_error=True)

kernel32.GetConsoleMode.argtypes = [ctypes.c_void_p, ctypes.POINTER(ctypes.c_uint)]
kernel32.GetConsoleMode.restype = ctypes.c_int

kernel32.SetConsoleMode.argtypes = [ctypes.c_void_p, ctypes.c_uint]
kernel32.SetConsoleMode.restype = ctypes.c_int

def GetConsoleMode(handle):
    flags = ctypes.c_uint(0)
    ok = kernel32.GetConsoleMode(handle, ctypes.byref(flags))
    if not ok:
        raise ctypes.WinError()
    return flags.value

def SetConsoleMode(handle, flags):
    ok = kernel32.SetConsoleMode(handle, flags)
    if not ok:
        raise ctypes.WinError()

# Can fail if sys.stdout has no fileno
console = msvcrt.get_osfhandle(sys.stdout.fileno())

flags = GetConsoleMode(console)
print(f"old flags = {flags:x}")
print("\033[1;31mtext\033[0;0m")

SetConsoleMode(console, flags | ENABLE_VIRTUAL_TERMINAL_PROCESSING)

# Check whether it worked
flags = GetConsoleMode(console)
print(f"new flags = {flags:x}")
print("\033[1;31mtext\033[0;0m")