clipboard > windows > python >: read_clipboard_data()

clipboard_script.py

import ctypes
import time
from typing import Any


TABLE =  {
        'to_list': lambda txt: txt.decode('utf-8').splitlines(),
    }

__doc__ = """
    Convert data from clipboard into desired format.
    
    PyDev console: starting.
    Python 3.8.0 (tags/v3.8.0:fa919fd, Oct 14 2019, 19:21:23) [MSC v.1916 32 bit (Intel)] on win32
    
    >>> from clipboardscript import read_clipboard_data
    >>>
    >>> data = read_clipboard_data('to_list')
    >>> data
    ['import ctypes', 'import time', 'from typing import Any']
"""

# SOURCE https://stackoverflow.com/a/23285159
CF_TEXT = 1

kernel32 = ctypes.windll.kernel32
kernel32.GlobalLock.argtypes = [ctypes.c_void_p]
kernel32.GlobalLock.restype = ctypes.c_void_p
kernel32.GlobalUnlock.argtypes = [ctypes.c_void_p]
user32 = ctypes.windll.user32
user32.GetClipboardData.restype = ctypes.c_void_p


def get_clipboard_text():
    user32.OpenClipboard(0)
    try:
        if user32.IsClipboardFormatAvailable(CF_TEXT):
            data = user32.GetClipboardData(CF_TEXT)
            data_locked = kernel32.GlobalLock(data)
            text = ctypes.c_char_p(data_locked)
            value = text.value
            kernel32.GlobalUnlock(data_locked)
            return value
    finally:
        user32.CloseClipboard()
# ENDSOURCE

class BasicException(Exception): pass

class FormattingNotFoundException(BasicException): pass

def read_clipboard_data(formatting, table=None) -> Any:
    table = table or TABLE

    while True:
        clipboard_text = get_clipboard_text()
        formatting_func = table.get(formatting, None)

        if not formatting_func:
            raise FormattingNotFoundException('Using table:', table)
        
        txt = formatting_func(clipboard_text)
        return txt


if __name__ == '__main__':
    read_clipboard_data('to_list')