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[1805] Replace Unicode Buffer

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David Sangrey 2025-04-27 13:09:23 -04:00
parent 272a0c6cb3
commit e8497c22e6
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GPG Key ID: 3AEADBB0186884BC
1 changed files with 20 additions and 19 deletions
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39
EDMarketConnector.py
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@ -268,7 +268,7 @@ if __name__ == '__main__': # noqa: C901
# If *this* instance hasn't locked, then another already has and we
# now need to do the edmc:// checks for auth callback
if locked != JournalLockResult.LOCKED:
from ctypes import create_unicode_buffer, WINFUNCTYPE
from ctypes import WINFUNCTYPE
from ctypes.wintypes import BOOL, HWND, LPARAM
import win32gui
import win32api
@ -277,19 +277,27 @@ if __name__ == '__main__': # noqa: C901
import pythoncom
def get_process_handle_from_hwnd(hwnd):
# Get thread and process IDs
thread_id, process_id = win32process.GetWindowThreadProcessId(hwnd)
try:
# Get thread and process IDs
_, process_id = win32process.GetWindowThreadProcessId(hwnd)
# Get the process handle
process_handle = win32api.OpenProcess(win32con.PROCESS_ALL_ACCESS, False, process_id)
return process_handle
return win32api.OpenProcess(win32con.PROCESS_ALL_ACCESS, False, process_id)
except Exception:
return None
COINIT_MULTITHREADED = 0 # noqa: N806,F841
def window_title(hwnd: int) -> str | None:
try:
return win32gui.GetWindowText(hwnd) if hwnd else None
except Exception:
return None
def window_title(h: int) -> str | None:
if h:
return win32gui.GetWindowText(h)
return None
def get_window_class(hwnd: int) -> str:
try:
return win32gui.GetClassName(hwnd)
except Exception:
return ""
# We still need WINFUNCTYPE for the callback as win32gui doesn't provide an alternative
@WINFUNCTYPE(BOOL, HWND, LPARAM)
def enumwindowsproc(window_handle, l_param): # noqa: CCR001
"""
@ -306,11 +314,8 @@ if __name__ == '__main__': # noqa: C901
:param l_param: The second parameter to the EnumWindows() call.
:return: False if we found a match, else True to continue iteration
"""
# class name limited to 256 - https://msdn.microsoft.com/en-us/library/windows/desktop/ms633576
cls = create_unicode_buffer(257)
# This conditional is exploded to make debugging slightly easier
if win32gui.GetClassName(window_handle):
if cls.value == 'TkTopLevel':
if window_class := get_window_class(window_handle):
if window_class == 'TkTopLevel':
if window_title(window_handle) == applongname:
if get_process_handle_from_hwnd(window_handle):
# If GetProcessHandleFromHwnd succeeds then the app is already running as this user
@ -319,16 +324,12 @@ if __name__ == '__main__': # noqa: C901
# Wait for it to be responsive to avoid ShellExecute recursing
win32gui.ShowWindow(window_handle, win32con.SW_RESTORE)
win32api.ShellExecute(0, None, sys.argv[1], None, None, win32con.SW_RESTORE)
else:
win32gui.ShowWindow(window_handle, win32con.SW_RESTORE)
win32gui.SetForegroundWindow(window_handle)
return False # Indicate window found, so stop iterating
# Indicate that EnumWindows() needs to continue iterating
return True # Do not remove, else this function as a callback breaks
# This performs the edmc://auth check and forward
# EnumWindows() will iterate through all open windows, calling
# enumwindwsproc() on each. When an invocation returns False it