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Hermès Bélusca-Maïto 13d70840ff [CTFMON] Some fixes for event handles management (#8392)
- Validate the opened `WinSta0_DesktopSwitch` handle;

- Don't pass the `ahEvents` array containing a NULL pointer to
  `MsgWaitForMultipleObjects()`, but provide the correct number
  of non-NULL handles, otherwise the function fails and the code
  ends up busy-looping.

- Validate the `MsgWaitForMultipleObjects()` result: bail out if
  `WAIT_FAILED` is returned.

- Validate the event index passed to `CRegWatcher::InitEvent()`
  and `CRegWatcher::OnEvent()`.

- Rename `WATCHENTRY_MAX` to `WI_REGEVTS_MAX` and add it in the
  `WATCH_INDEX` enumeration.

- Fix some code comments.
2025-09-20 22:01:34 +02:00

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1.2 KiB
C++

/*
* PROJECT: ReactOS CTF Monitor
* LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
* PURPOSE: Registry watcher
* COPYRIGHT: Copyright 2023 Katayama Hirofumi MZ <[email protected]>
*/
#pragma once
struct WATCHENTRY
{
HKEY hRootKey;
LPCTSTR pszSubKey;
HKEY hKey;
};
struct CRegWatcher
{
static HANDLE s_ahWatchEvents[WI_REGEVTS_MAX];
static WATCHENTRY s_WatchEntries[WI_REGEVTS_MAX];
static UINT s_nSysColorTimerId, s_nKbdToggleTimerId, s_nRegImxTimerId;
static BOOL Init();
static VOID Uninit();
static BOOL InitEvent(_In_ SIZE_T iEvent, _In_ BOOL bResetEvent);
static VOID UpdateSpTip();
static VOID KillInternat();
static VOID StartSysColorChangeTimer();
static VOID OnEvent(_In_ SIZE_T iEvent);
protected:
static BOOL CALLBACK
EnumWndProc(_In_ HWND hWnd, _In_ LPARAM lParam);
static VOID CALLBACK
SysColorTimerProc(_In_ HWND hWnd, _In_ UINT uMsg, _In_ UINT_PTR idEvent, _In_ DWORD dwTime);
static VOID CALLBACK
KbdToggleTimerProc(_In_ HWND hWnd, _In_ UINT uMsg, _In_ UINT_PTR idEvent, _In_ DWORD dwTime);
static VOID CALLBACK
RegImxTimerProc(_In_ HWND hWnd, _In_ UINT uMsg, _In_ UINT_PTR idEvent, _In_ DWORD dwTime);
};