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user_dll.py
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user_dll.py
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import ctypes
import os
import time
import random
os.add_dll_directory(os.getcwd())
user_dll = ctypes.WinDLL('user.dll')
process_query_proto = ctypes.WINFUNCTYPE(ctypes.c_double, ctypes.c_char_p)
update_symbols_proto = ctypes.WINFUNCTYPE(ctypes.c_int, ctypes.c_char_p)
process_query_params = (1, 'pquery', 0),
update_symbols_params = (1, 'psymbols', 0),
process_query_ = process_query_proto(('process_query', user_dll), process_query_params)
update_symbols_ = update_symbols_proto(('update_symbols', user_dll), update_symbols_params)
def _convert_to_bytes(string):
try:
string = string.encode('utf-8')
except Exception as e:
print(e)
print(string)
exit(-1)
return string
def process_query(query):
time.sleep(random.uniform(0, 0.7))
return process_query_(ctypes.c_char_p(_convert_to_bytes(query)))
def update_symbols(symbols):
symbols_str = ''
for i, key in enumerate(symbols):
val = symbols[key]
val = val.replace('\n', '_')
val = val.replace(' ', '_')
if len(val) == 0:
val = '0'
symbols_str += f'{key}: {val}'
if i != len(symbols) - 1:
symbols_str += '\n'
symbols_str = _convert_to_bytes(symbols_str)
return update_symbols_(ctypes.c_char_p(symbols_str))