From a7c24ca48995cf2bf436156302f96b91bf135409 Mon Sep 17 00:00:00 2001
From: Goraf <22941576+Goraf@users.noreply.github.com>
Date: Mon, 13 Nov 2017 15:03:31 +0100
Subject: Code modernize ...

* replace 0/NULL with nullptr [using clang-tidy]
---
 plugins/AutoShutdown/src/cpuusage.cpp    |  22 +++----
 plugins/AutoShutdown/src/frame.cpp       | 106 +++++++++++++++----------------
 plugins/AutoShutdown/src/options.cpp     |   4 +-
 plugins/AutoShutdown/src/settingsdlg.cpp |  38 +++++------
 plugins/AutoShutdown/src/shutdownsvc.cpp |  48 +++++++-------
 plugins/AutoShutdown/src/utils.cpp       |  34 +++++-----
 plugins/AutoShutdown/src/watcher.cpp     |  36 +++++------
 7 files changed, 144 insertions(+), 144 deletions(-)

(limited to 'plugins/AutoShutdown')

diff --git a/plugins/AutoShutdown/src/cpuusage.cpp b/plugins/AutoShutdown/src/cpuusage.cpp
index 555f1c8dbb..2959013407 100644
--- a/plugins/AutoShutdown/src/cpuusage.cpp
+++ b/plugins/AutoShutdown/src/cpuusage.cpp
@@ -35,7 +35,7 @@ static BOOL WinNT_PerfStatsSwitch(wchar_t *pszServiceName, BOOL fDisable)
 		if (!RegOpenKeyEx(hKeyServices, pszServiceName, 0, KEY_QUERY_VALUE | KEY_SET_VALUE, &hKeyService)) {
 			if (!RegOpenKeyEx(hKeyService, L"Performance", 0, KEY_QUERY_VALUE | KEY_SET_VALUE, &hKeyPerf)) {
 				dwDataSize = sizeof(DWORD);
-				if (!RegQueryValueEx(hKeyPerf, L"Disable Performance Counters", NULL, NULL, (BYTE*)&dwData, &dwDataSize))
+				if (!RegQueryValueEx(hKeyPerf, L"Disable Performance Counters", nullptr, nullptr, (BYTE*)&dwData, &dwDataSize))
 					if ((dwData != 0) != fDisable)
 						fSwitched = !RegSetValueEx(hKeyPerf, L"Disable Performance Counters", 0, REG_DWORD, (BYTE*)&fDisable, dwDataSize);
 				RegCloseKey(hKeyPerf);
@@ -59,11 +59,11 @@ struct CpuUsageThreadParams
 
 static BOOL CallBackAndWait(struct CpuUsageThreadParams *param, BYTE nCpuUsage)
 {
-	if (param->hFirstEvent != NULL) {
+	if (param->hFirstEvent != nullptr) {
 		/* return value for PollCpuUsage() */
 		*param->pidThread = GetCurrentThreadId();
 		SetEvent(param->hFirstEvent);
-		param->hFirstEvent = NULL;
+		param->hFirstEvent = nullptr;
 		/* lower priority after first call */
 		SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_IDLE);
 	}
@@ -77,8 +77,8 @@ static void WinNT_PollThread(void *vparam)
 	CpuUsageThreadParams *param = (CpuUsageThreadParams*)vparam;
 
 	DWORD dwBufferSize = 0, dwCount;
-	BYTE *pBuffer = NULL;
-	PERF_DATA_BLOCK *pPerfData = NULL;
+	BYTE *pBuffer = nullptr;
+	PERF_DATA_BLOCK *pPerfData = nullptr;
 	LONG res, lCount;
 	PERF_OBJECT_TYPE *pPerfObj;
 	PERF_COUNTER_DEFINITION *pPerfCounter;
@@ -100,12 +100,12 @@ static void WinNT_PollThread(void *vparam)
 	/* poll */
 	for (;;) {
 		/* retrieve data for given object */
-		res = RegQueryValueExW(HKEY_PERFORMANCE_DATA, wszValueName, NULL, NULL, (BYTE*)pPerfData, &dwBufferSize);
+		res = RegQueryValueExW(HKEY_PERFORMANCE_DATA, wszValueName, nullptr, nullptr, (BYTE*)pPerfData, &dwBufferSize);
 		while (!pBuffer || res == ERROR_MORE_DATA) {
 			pBuffer = (BYTE*)mir_realloc(pPerfData, dwBufferSize += 256);
 			if (!pBuffer) break;
 			pPerfData = (PERF_DATA_BLOCK*)pBuffer;
-			res = RegQueryValueExW(HKEY_PERFORMANCE_DATA, wszValueName, NULL, NULL, pBuffer, &dwBufferSize);
+			res = RegQueryValueExW(HKEY_PERFORMANCE_DATA, wszValueName, nullptr, nullptr, pBuffer, &dwBufferSize);
 		}
 		if (res != ERROR_SUCCESS) break;
 
@@ -174,7 +174,7 @@ static void WinNT_PollThread(void *vparam)
 		WinNT_PerfStatsSwitch(L"PerfOS", TRUE);
 
 	/* return error for PollCpuUsage() if never succeeded */
-	if (param->hFirstEvent != NULL)
+	if (param->hFirstEvent != nullptr)
 		SetEvent(param->hFirstEvent);
 	mir_free(param);
 }
@@ -188,11 +188,11 @@ DWORD PollCpuUsage(CPUUSAGEAVAILPROC pfnDataAvailProc, LPARAM lParam, DWORD dwDe
 
 	/* init params */
 	CpuUsageThreadParams *param = (struct CpuUsageThreadParams*)mir_alloc(sizeof(struct CpuUsageThreadParams));
-	if (param == NULL)
+	if (param == nullptr)
 		return FALSE;
 
-	HANDLE hFirstEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
-	if (hFirstEvent == NULL) {
+	HANDLE hFirstEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
+	if (hFirstEvent == nullptr) {
 		mir_free(param);
 		return FALSE;
 	}
diff --git a/plugins/AutoShutdown/src/frame.cpp b/plugins/AutoShutdown/src/frame.cpp
index a450355f22..5908be544f 100644
--- a/plugins/AutoShutdown/src/frame.cpp
+++ b/plugins/AutoShutdown/src/frame.cpp
@@ -56,7 +56,7 @@ static LOGFONT* GetDefaultFont(LOGFONT *lf)
 		*lf = ncm.lfStatusFont;
 		return lf;
 	}
-	return (LOGFONT*)NULL;
+	return nullptr;
 }
 
 static LRESULT CALLBACK ProgressBarSubclassProc(HWND hwndProgress, UINT msg, WPARAM wParam, LPARAM lParam)
@@ -116,7 +116,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 	case WM_NCCREATE:  /* init window data */
 		dat = (struct CountdownFrameWndData*)mir_calloc(sizeof(*dat));
 		SetWindowLongPtr(hwndFrame, GWLP_USERDATA, (LONG_PTR)dat);
-		if (dat == NULL) return FALSE; /* creation failed */
+		if (dat == nullptr) return FALSE; /* creation failed */
 		dat->fTimeFlags = *(WORD*)((CREATESTRUCT*)lParam)->lpCreateParams;
 		dat->flags = FWPDF_COUNTDOWNINVALID;
 		break;
@@ -124,26 +124,26 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 	case WM_CREATE:  /*  create childs */
 		{
 			CREATESTRUCT *params = (CREATESTRUCT*)lParam;
-			dat->hwndIcon = CreateWindowEx(WS_EX_NOPARENTNOTIFY, L"Static", NULL, WS_CHILD | WS_VISIBLE | SS_ICON | SS_CENTERIMAGE | SS_NOTIFY,
-				3, 0, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), hwndFrame, NULL, params->hInstance, NULL);
+			dat->hwndIcon = CreateWindowEx(WS_EX_NOPARENTNOTIFY, L"Static", nullptr, WS_CHILD | WS_VISIBLE | SS_ICON | SS_CENTERIMAGE | SS_NOTIFY,
+				3, 0, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), hwndFrame, nullptr, params->hInstance, nullptr);
 			dat->hwndProgress = CreateWindowEx(WS_EX_NOPARENTNOTIFY, PROGRESS_CLASS, (dat->fTimeFlags&SDWTF_ST_TIME) ? TranslateT("Shutdown at:") : TranslateT("Time left:"),
-				WS_CHILD | WS_VISIBLE | PBS_SMOOTH, GetSystemMetrics(SM_CXICON) + 5, 5, 90, (GetSystemMetrics(SM_CXICON) / 2) - 5, hwndFrame, NULL, params->hInstance, NULL);
-			if (dat->hwndProgress == NULL) return -1; /* creation failed, calls WM_DESTROY */
+				WS_CHILD | WS_VISIBLE | PBS_SMOOTH, GetSystemMetrics(SM_CXICON) + 5, 5, 90, (GetSystemMetrics(SM_CXICON) / 2) - 5, hwndFrame, nullptr, params->hInstance, nullptr);
+			if (dat->hwndProgress == nullptr) return -1; /* creation failed, calls WM_DESTROY */
 			SendMessage(dat->hwndProgress, PBM_SETSTEP, 1, 0);
 			mir_subclassWindow(dat->hwndProgress, ProgressBarSubclassProc);
 			dat->hwndDesc = CreateWindowEx(WS_EX_NOPARENTNOTIFY, L"Static", (dat->fTimeFlags&SDWTF_ST_TIME) ? TranslateT("Shutdown at:") : TranslateT("Time left:"),
 				WS_CHILD | WS_VISIBLE | SS_LEFTNOWORDWRAP | SS_NOTIFY, GetSystemMetrics(SM_CXICON) + 5, (GetSystemMetrics(SM_CXICON) / 2), 75,
-				(GetSystemMetrics(SM_CXICON) / 2), hwndFrame, NULL, params->hInstance, NULL);
-			dat->hwndTime = CreateWindowEx(WS_EX_NOPARENTNOTIFY, L"Static", NULL, WS_CHILD | WS_VISIBLE | SS_RIGHT | SS_NOTIFY | SS_ENDELLIPSIS,
-				(GetSystemMetrics(SM_CXICON) + 80), (GetSystemMetrics(SM_CXICON) / 2), 35, (GetSystemMetrics(SM_CXICON) / 2), hwndFrame, NULL, params->hInstance, NULL);
-			if (dat->hwndTime == NULL)
+				(GetSystemMetrics(SM_CXICON) / 2), hwndFrame, nullptr, params->hInstance, nullptr);
+			dat->hwndTime = CreateWindowEx(WS_EX_NOPARENTNOTIFY, L"Static", nullptr, WS_CHILD | WS_VISIBLE | SS_RIGHT | SS_NOTIFY | SS_ENDELLIPSIS,
+				(GetSystemMetrics(SM_CXICON) + 80), (GetSystemMetrics(SM_CXICON) / 2), 35, (GetSystemMetrics(SM_CXICON) / 2), hwndFrame, nullptr, params->hInstance, nullptr);
+			if (dat->hwndTime == nullptr)
 				return -1; /* creation failed, calls WM_DESTROY */
 
 			// create tooltips
 			TTTOOLINFO ti;
-			dat->hwndToolTip = CreateWindowEx(WS_EX_TOPMOST, TOOLTIPS_CLASS, NULL, WS_POPUP | TTS_ALWAYSTIP | TTS_NOPREFIX,
-				CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hwndFrame, NULL, params->hInstance, NULL);
-			if (dat->hwndToolTip != NULL) {
+			dat->hwndToolTip = CreateWindowEx(WS_EX_TOPMOST, TOOLTIPS_CLASS, nullptr, WS_POPUP | TTS_ALWAYSTIP | TTS_NOPREFIX,
+				CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hwndFrame, nullptr, params->hInstance, nullptr);
+			if (dat->hwndToolTip != nullptr) {
 				SetWindowPos(dat->hwndToolTip, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
 				memset(&ti, 0, sizeof(ti));
 				ti.cbSize = sizeof(ti);
@@ -155,11 +155,11 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 				ti.uFlags &= ~TTF_TRANSPARENT;
 				ti.uId = (UINT_PTR)dat->hwndProgress;
 				SendMessage(dat->hwndToolTip, TTM_ADDTOOL, 0, (LPARAM)&ti);
-				if (dat->hwndDesc != NULL) {
+				if (dat->hwndDesc != nullptr) {
 					ti.uId = (UINT_PTR)dat->hwndDesc;
 					SendMessage(dat->hwndToolTip, TTM_ADDTOOL, 0, (LPARAM)&ti);
 				}
-				if (dat->hwndIcon != NULL) {
+				if (dat->hwndIcon != nullptr) {
 					ti.uId = (UINT_PTR)dat->hwndIcon;
 					SendMessage(dat->hwndToolTip, TTM_ADDTOOL, 0, (LPARAM)&ti);
 				}
@@ -173,26 +173,26 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 			SendMessage(hwndFrame, M_REFRESH_ICONS, 0, 0);
 			SendMessage(hwndFrame, M_SET_COUNTDOWN, 0, 0);
 			SendMessage(hwndFrame, M_UPDATE_COUNTDOWN, 0, 0);
-			if (!SetTimer(hwndFrame, 1, 1000, NULL))
+			if (!SetTimer(hwndFrame, 1, 1000, nullptr))
 				return -1; /* creation failed, calls WM_DESTROY */
 		}
 		return 0;
 
 	case WM_DESTROY:
-		if (dat == NULL) return 0;
+		if (dat == nullptr) return 0;
 
 		UnhookEvent(dat->hHookColorsChanged);
 		UnhookEvent(dat->hHookFontsChanged);
 		UnhookEvent(dat->hHookIconsChanged);
 		/* other childs are destroyed automatically */
-		if (dat->hwndToolTip != NULL)
+		if (dat->hwndToolTip != nullptr)
 			DestroyWindow(dat->hwndToolTip);
 		break;
 
 	case WM_NCDESTROY:
-		if (dat == NULL) return 0;
-		if (dat->hFont != NULL) DeleteObject(dat->hFont);
-		if (dat->hbrBackground != NULL) DeleteObject(dat->hbrBackground);
+		if (dat == nullptr) return 0;
+		if (dat->hFont != nullptr) DeleteObject(dat->hFont);
+		if (dat->hbrBackground != nullptr) DeleteObject(dat->hbrBackground);
 		mir_free(dat);
 		SetWindowLongPtr(hwndFrame, GWLP_USERDATA, 0);
 		break;
@@ -208,14 +208,14 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 			/* progress */
 			LONG width = rc.right - GetSystemMetrics(SM_CXICON) - 10;
 			LONG height = rc.bottom - (GetSystemMetrics(SM_CYICON) / 2) - 5;
-			if (NULL != dat->hwndProgress) /* Wine fix. */
-				hdwp = DeferWindowPos(hdwp, dat->hwndProgress, NULL, 0, 0, width, height, SWP_NOMOVE | defflg);
+			if (nullptr != dat->hwndProgress) /* Wine fix. */
+				hdwp = DeferWindowPos(hdwp, dat->hwndProgress, nullptr, 0, 0, width, height, SWP_NOMOVE | defflg);
 			/* desc */
-			if (dat->hwndDesc != NULL) /* Wine fix. */
-				hdwp = DeferWindowPos(hdwp, dat->hwndDesc, NULL, GetSystemMetrics(SM_CXICON) + 5, 5 + height, 0, 0, SWP_NOSIZE | defflg);
+			if (dat->hwndDesc != nullptr) /* Wine fix. */
+				hdwp = DeferWindowPos(hdwp, dat->hwndDesc, nullptr, GetSystemMetrics(SM_CXICON) + 5, 5 + height, 0, 0, SWP_NOSIZE | defflg);
 			/* time */
-			if (NULL != dat->hwndTime) /* Wine fix. */
-				hdwp = DeferWindowPos(hdwp, dat->hwndTime, NULL, GetSystemMetrics(SM_CXICON) + 85, 5 + height, width - 80, (GetSystemMetrics(SM_CXICON) / 2), defflg);
+			if (nullptr != dat->hwndTime) /* Wine fix. */
+				hdwp = DeferWindowPos(hdwp, dat->hwndTime, nullptr, GetSystemMetrics(SM_CXICON) + 85, 5 + height, width - 80, (GetSystemMetrics(SM_CXICON) / 2), defflg);
 			EndDeferWindowPos(hdwp);
 		}
 		PostMessage(hwndFrame, M_CHECK_CLIPPED, 0, 0);
@@ -231,13 +231,13 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 		if (dat->clrBackground == -1)
 			dat->clrBackground = GetDefaultColor(FRAMEELEMENT_BKGRND);
 		
-		if (dat->hbrBackground != NULL)
+		if (dat->hbrBackground != nullptr)
 			DeleteObject(dat->hbrBackground);
 		dat->hbrBackground = CreateSolidBrush(dat->clrBackground);
 
 		SendMessage(dat->hwndProgress, PBM_SETBARCOLOR, 0, (LPARAM)clrBar);
 		SendMessage(dat->hwndProgress, PBM_SETBKCOLOR, 0, (LPARAM)dat->clrBackground);
-		InvalidateRect(hwndFrame, NULL, TRUE);
+		InvalidateRect(hwndFrame, nullptr, TRUE);
 		return 0;
 
 	case M_REFRESH_ICONS:
@@ -247,13 +247,13 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 		{
 			LOGFONT lf;
 			dat->clrText = Font_GetW(L"Automatic shutdown", L"Countdown on frame", &lf);
-			if (dat->hFont != NULL) DeleteObject(dat->hFont);
+			if (dat->hFont != nullptr) DeleteObject(dat->hFont);
 			dat->hFont = CreateFontIndirect(&lf);
 		}
-		if (dat->hwndDesc != NULL)
+		if (dat->hwndDesc != nullptr)
 			SendMessage(dat->hwndDesc, WM_SETFONT, (WPARAM)dat->hFont, FALSE);
 		SendMessage(dat->hwndTime, WM_SETFONT, (WPARAM)dat->hFont, FALSE);
-		InvalidateRect(hwndFrame, NULL, FALSE);
+		InvalidateRect(hwndFrame, nullptr, FALSE);
 		return 0;
 
 	case WM_SYSCOLORCHANGE:
@@ -264,7 +264,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 		SendMessage(hwndFrame, M_REFRESH_COLORS, 0, 0);
 		SendMessage(hwndFrame, M_REFRESH_FONTS, 0, 0);
 		SendMessage(hwndFrame, M_UPDATE_COUNTDOWN, 0, 0);
-		RedrawWindow(hwndFrame, NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_ERASE);
+		RedrawWindow(hwndFrame, nullptr, nullptr, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_ERASE);
 		break;
 
 	case WM_TIMECHANGE: /* windows system clock changed */
@@ -281,7 +281,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 	case WM_ERASEBKGND:
 		{
 			RECT rc;
-			if (dat->hbrBackground != NULL && GetClientRect(hwndFrame, &rc)) {
+			if (dat->hbrBackground != nullptr && GetClientRect(hwndFrame, &rc)) {
 				FillRect((HDC)wParam, &rc, dat->hbrBackground);
 				return TRUE;
 			}
@@ -290,7 +290,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 	case M_SET_COUNTDOWN:
 		if (dat->fTimeFlags&SDWTF_ST_TIME) {
 			dat->settingLastTime = (time_t)db_get_dw(NULL, "AutoShutdown", "TimeStamp", SETTING_TIMESTAMP_DEFAULT);
-			dat->countdown = time(NULL);
+			dat->countdown = time(nullptr);
 			if (dat->settingLastTime > dat->countdown) dat->countdown = dat->settingLastTime - dat->countdown;
 			else dat->countdown = 0;
 		}
@@ -303,7 +303,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 		SendMessage(dat->hwndProgress, PBM_SETRANGE32, 0, (LPARAM)dat->countdown);
 		return 0;
 	case WM_TIMER:
-		if (dat == NULL) return 0;
+		if (dat == nullptr) return 0;
 		if (dat->countdown != 0 && !(dat->flags&FWPDF_COUNTDOWNINVALID) && !(dat->flags&FWPDF_PAUSED)) {
 			dat->countdown--;
 			PostMessage(dat->hwndProgress, PBM_STEPIT, 0, 0);
@@ -332,7 +332,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 			SetWindowText(dat->hwndTime, szOutput);
 			PostMessage(hwndFrame, M_CHECK_CLIPPED, 0, 0);
 			/* update tooltip text (if shown) */
-			if (dat->hwndToolTip != NULL && !(dat->flags&FWPDF_PAUSED)) {
+			if (dat->hwndToolTip != nullptr && !(dat->flags&FWPDF_PAUSED)) {
 				TTTOOLINFO ti;
 				ti.cbSize = sizeof(ti);
 				if (SendMessage(dat->hwndToolTip, TTM_GETCURRENTTOOL, 0, (LPARAM)&ti) && (HWND)ti.uId != dat->hwndIcon)
@@ -380,11 +380,11 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 				pt.y = rc.top + ((int)(rc.bottom - rc.top) / 2);
 			}
 			HMENU hContextMenu = CreatePopupMenu();
-			if (hContextMenu != NULL) {
+			if (hContextMenu != nullptr) {
 				AppendMenu(hContextMenu, MF_STRING, MENUITEM_PAUSECOUNTDOWN, (dat->flags&FWPDF_PAUSED) ? TranslateT("&Unpause countdown") : TranslateT("&Pause countdown"));
 				SetMenuDefaultItem(hContextMenu, MENUITEM_PAUSECOUNTDOWN, FALSE);
 				AppendMenu(hContextMenu, MF_STRING, MENUITEM_STOPCOUNTDOWN, TranslateT("&Cancel countdown"));
-				TrackPopupMenuEx(hContextMenu, TPM_LEFTALIGN | TPM_TOPALIGN | TPM_HORPOSANIMATION | TPM_VERPOSANIMATION | TPM_RIGHTBUTTON, pt.x, pt.y, hwndFrame, NULL);
+				TrackPopupMenuEx(hContextMenu, TPM_LEFTALIGN | TPM_TOPALIGN | TPM_HORPOSANIMATION | TPM_VERPOSANIMATION | TPM_RIGHTBUTTON, pt.x, pt.y, hwndFrame, nullptr);
 				DestroyMenu(hContextMenu);
 			}
 		}
@@ -411,19 +411,19 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 			RECT rc;
 			HDC hdc;
 			SIZE size;
-			HFONT hFontPrev = NULL;
+			HFONT hFontPrev = nullptr;
 			wchar_t szOutput[256];
 			dat->flags &= ~FWPDF_TIMEISCLIPPED;
 			if (GetWindowText(dat->hwndTime, szOutput, _countof(szOutput)))
 				if (GetClientRect(dat->hwndTime, &rc)) {
 					hdc = GetDC(dat->hwndTime);
-					if (hdc != NULL) {
-						if (dat->hFont != NULL)
+					if (hdc != nullptr) {
+						if (dat->hFont != nullptr)
 							hFontPrev = (HFONT)SelectObject(hdc, dat->hFont);
 						if (GetTextExtentPoint32(hdc, szOutput, (int)mir_wstrlen(szOutput), &size))
 							if (size.cx >= (rc.right - rc.left))
 								dat->flags &= FWPDF_TIMEISCLIPPED;
-						if (dat->hFont != NULL)
+						if (dat->hFont != nullptr)
 							SelectObject(hdc, hFontPrev);
 						ReleaseDC(dat->hwndTime, hdc);
 					}
@@ -440,7 +440,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 						SetWindowLongPtr(dat->hwndToolTip, GWL_STYLE, GetWindowLongPtr(dat->hwndToolTip, GWL_STYLE) | TTS_NOANIMATE);
 						SetWindowLongPtr(dat->hwndToolTip, GWL_EXSTYLE, GetWindowLongPtr(dat->hwndToolTip, GWL_EXSTYLE) | WS_EX_TRANSPARENT);
 						SendMessage(dat->hwndToolTip, TTM_ADJUSTRECT, TRUE, (LPARAM)&rc);
-						SetWindowPos(dat->hwndToolTip, NULL, rc.left, rc.top, 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
+						SetWindowPos(dat->hwndToolTip, nullptr, rc.left, rc.top, 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
 						return TRUE; /* self-defined position */
 					}
 				}
@@ -450,7 +450,7 @@ static LRESULT CALLBACK FrameWndProc(HWND hwndFrame, UINT msg, WPARAM wParam, LP
 			case TTN_POP:
 				/* workaround #5: frame does not get redrawn after
 				 * in-place tooltip	hidden on dat->hwndTime */
-				RedrawWindow(hwndCountdownFrame, NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_ERASE);
+				RedrawWindow(hwndCountdownFrame, nullptr, nullptr, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_ERASE);
 				return 0;
 			case TTN_NEEDTEXT:
 				{
@@ -483,16 +483,16 @@ void ShowCountdownFrame(WORD fTimeFlags)
 {
 	hwndCountdownFrame = CreateWindowEx(WS_EX_CONTROLPARENT | WS_EX_NOPARENTNOTIFY | WS_EX_TRANSPARENT,
 		COUNTDOWNFRAME_CLASS,
-		NULL,
+		nullptr,
 		WS_CHILD | WS_TABSTOP,
 		0, 0,
 		GetSystemMetrics(SM_CXICON) + 103,
 		GetSystemMetrics(SM_CYICON) + 2,
 		pcli->hwndContactList,
-		NULL,
+		nullptr,
 		hInst,
 		&fTimeFlags);
-	if (hwndCountdownFrame == NULL) return;
+	if (hwndCountdownFrame == nullptr) return;
 
 	if (ServiceExists(MS_CLIST_FRAMES_ADDFRAME)) {
 		CLISTFrame clf = { sizeof(clf) };
@@ -517,7 +517,7 @@ void ShowCountdownFrame(WORD fTimeFlags)
 			if (!(CallService(MS_CLIST_FRAMES_GETFRAMEOPTIONS, MAKEWPARAM(FO_FLAGS, hFrame), 0)&F_VISIBLE))
 				CallService(MS_CLIST_FRAMES_SHFRAME, hFrame, 0);
 			/* workaround #4: MS_CLIST_FRAMES_SHFRAME does cause redrawing problems when frame was hidden */
-			RedrawWindow(hwndCountdownFrame, NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_ERASE);
+			RedrawWindow(hwndCountdownFrame, nullptr, nullptr, RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_ERASE);
 			/* workaround #5: for in-place tooltip TTN_POP
 			 * workaround #6 and #7: see CloseCountdownFrame() */
 		}
@@ -526,7 +526,7 @@ void ShowCountdownFrame(WORD fTimeFlags)
 
 void CloseCountdownFrame(void)
 {
-	if (hwndCountdownFrame != NULL) {
+	if (hwndCountdownFrame != nullptr) {
 		SendMessage(hwndCountdownFrame, M_CLOSE_COUNTDOWN, 0, 0);
 		if (hFrame) {
 			/* HACKS TO FIX CLUIFrames:
@@ -540,7 +540,7 @@ void CloseCountdownFrame(void)
 			#endif
 		}
 		else DestroyWindow(hwndCountdownFrame);
-		hwndCountdownFrame = NULL;
+		hwndCountdownFrame = nullptr;
 		hFrame = 0;
 	}
 
@@ -573,12 +573,12 @@ int InitFrame(void)
 	wcx.style = CS_DBLCLKS | CS_PARENTDC;
 	wcx.lpfnWndProc = FrameWndProc;
 	wcx.hInstance = hInst;
-	wcx.hCursor = (HCURSOR)LoadImage(NULL, IDC_ARROW, IMAGE_CURSOR, 0, 0, LR_SHARED);
+	wcx.hCursor = (HCURSOR)LoadImage(nullptr, IDC_ARROW, IMAGE_CURSOR, 0, 0, LR_SHARED);
 	wcx.lpszClassName = COUNTDOWNFRAME_CLASS;
 	if (!RegisterClassEx(&wcx))
 		return 1;
 
-	hwndCountdownFrame = NULL;
+	hwndCountdownFrame = nullptr;
 	hHookModulesLoaded = HookEvent(ME_SYSTEM_MODULESLOADED, FrameModulesLoaded);
 	return 0;
 }
diff --git a/plugins/AutoShutdown/src/options.cpp b/plugins/AutoShutdown/src/options.cpp
index 7a9f2001fd..c9b8a508ce 100644
--- a/plugins/AutoShutdown/src/options.cpp
+++ b/plugins/AutoShutdown/src/options.cpp
@@ -76,7 +76,7 @@ static INT_PTR CALLBACK ShutdownOptDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam
 		switch (LOWORD(wParam)) {
 		case IDC_EDIT_CONFIRMDLGCOUNTDOWN:
 			if (HIWORD(wParam) == EN_KILLFOCUS)
-				if ((int)GetDlgItemInt(hwndDlg, IDC_EDIT_CONFIRMDLGCOUNTDOWN, NULL, TRUE) < 3) {
+				if ((int)GetDlgItemInt(hwndDlg, IDC_EDIT_CONFIRMDLGCOUNTDOWN, nullptr, TRUE) < 3) {
 					SendDlgItemMessage(hwndDlg, IDC_SPIN_CONFIRMDLGCOUNTDOWN, UDM_SETPOS, 0, MAKELPARAM(3, 0));
 					SetDlgItemInt(hwndDlg, IDC_EDIT_CONFIRMDLGCOUNTDOWN, 3, FALSE);
 				}
@@ -92,7 +92,7 @@ static INT_PTR CALLBACK ShutdownOptDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam
 		switch (((NMHDR*)lParam)->code) {
 		case PSN_APPLY:
 			db_set_b(NULL, "AutoShutdown", "ShowConfirmDlg", (BYTE)(IsDlgButtonChecked(hwndDlg, IDC_CHECK_SHOWCONFIRMDLG) != 0));
-			db_set_w(NULL, "AutoShutdown", "ConfirmDlgCountdown", (WORD)GetDlgItemInt(hwndDlg, IDC_EDIT_CONFIRMDLGCOUNTDOWN, NULL, FALSE));
+			db_set_w(NULL, "AutoShutdown", "ConfirmDlgCountdown", (WORD)GetDlgItemInt(hwndDlg, IDC_EDIT_CONFIRMDLGCOUNTDOWN, nullptr, FALSE));
 			db_set_b(NULL, "AutoShutdown", "RememberOnRestart", (BYTE)(IsDlgButtonChecked(hwndDlg, IDC_CHECK_REMEMBERONRESTART) != 0));
 			db_set_b(NULL, "AutoShutdown", "SmartOfflineCheck", (BYTE)(IsDlgButtonChecked(hwndDlg, IDC_CHECK_SMARTOFFLINECHECK) != 0));
 			if (IsWindowEnabled(GetDlgItem(hwndDlg, IDC_CHECK_WEATHER)))
diff --git a/plugins/AutoShutdown/src/settingsdlg.cpp b/plugins/AutoShutdown/src/settingsdlg.cpp
index 15bcc187c5..662196b3ca 100644
--- a/plugins/AutoShutdown/src/settingsdlg.cpp
+++ b/plugins/AutoShutdown/src/settingsdlg.cpp
@@ -33,7 +33,7 @@ const wchar_t *unitNames[] = { LPGENW("Second(s)"), LPGENW("Minute(s)"), LPGENW(
 static void EnableDlgItem(HWND hwndDlg, int idCtrl, BOOL fEnable)
 {
 	hwndDlg = GetDlgItem(hwndDlg, idCtrl);
-	if (hwndDlg != NULL && IsWindowEnabled(hwndDlg) != fEnable)
+	if (hwndDlg != nullptr && IsWindowEnabled(hwndDlg) != fEnable)
 		EnableWindow(hwndDlg, fEnable);
 }
 
@@ -80,7 +80,7 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 					lf.lfWeight = FW_BOLD;
 					hBoldFont = CreateFontIndirect(&lf);
 				}
-				else hBoldFont = NULL;
+				else hBoldFont = nullptr;
 				SendDlgItemMessage(hwndDlg, IDC_TEXT_HEADER, WM_SETFONT, (WPARAM)hBoldFont, FALSE);
 			}
 			/* read-in watcher flags */
@@ -183,9 +183,9 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 		{
 			HFONT hFont = (HFONT)SendDlgItemMessage(hwndDlg, IDC_TEXT_HEADER, WM_GETFONT, 0, 0);
 			SendDlgItemMessage(hwndDlg, IDC_TEXT_HEADER, WM_SETFONT, 0, FALSE); /* no return value */
-			if (hFont != NULL)
+			if (hFont != nullptr)
 				DeleteObject(hFont);
-			hwndSettingsDlg = NULL;
+			hwndSettingsDlg = nullptr;
 		}
 		return TRUE;
 
@@ -258,14 +258,14 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 			GetLocalTime(&stBuf);
 			if (SystemTimeToTimeStamp(&st, &timestamp)) {
 				/* set to current date if earlier */
-				if (timestamp < time(NULL)) {
+				if (timestamp < time(nullptr)) {
 					st.wDay = stBuf.wDay;
 					st.wDayOfWeek = stBuf.wDayOfWeek;
 					st.wMonth = stBuf.wMonth;
 					st.wYear = stBuf.wYear;
 					if (SystemTimeToTimeStamp(&st, &timestamp)) {
 						/* step one day up if still earlier */
-						if (timestamp < time(NULL)) {
+						if (timestamp < time(nullptr)) {
 							timestamp += 24 * 60 * 60;
 							TimeStampToSystemTime(timestamp, &st);
 						}
@@ -307,7 +307,7 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 
 		case IDC_EDIT_COUNTDOWN:
 			if (HIWORD(wParam) == EN_KILLFOCUS) {
-				if ((int)GetDlgItemInt(hwndDlg, IDC_EDIT_COUNTDOWN, NULL, TRUE) < 1) {
+				if ((int)GetDlgItemInt(hwndDlg, IDC_EDIT_COUNTDOWN, nullptr, TRUE) < 1) {
 					SendDlgItemMessage(hwndDlg, IDC_SPIN_COUNTDOWN, UDM_SETPOS, 0, MAKELPARAM(1, 0));
 					SetDlgItemInt(hwndDlg, IDC_EDIT_COUNTDOWN, 1, FALSE);
 				}
@@ -317,7 +317,7 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 
 		case IDC_EDIT_CPUUSAGE:
 			if (HIWORD(wParam) == EN_KILLFOCUS) {
-				WORD val = (WORD)GetDlgItemInt(hwndDlg, IDC_EDIT_CPUUSAGE, NULL, FALSE);
+				WORD val = (WORD)GetDlgItemInt(hwndDlg, IDC_EDIT_CPUUSAGE, nullptr, FALSE);
 				if (val < 1) val = 1;
 				else if (val>100) val = 100;
 				SendDlgItemMessage(hwndDlg, IDC_SPIN_CPUUSAGE, UDM_SETPOS, 0, MAKELPARAM(val, 0));
@@ -342,7 +342,7 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 				HWND hwndEdit = GetDlgItem(hwndDlg, IDC_EDIT_MESSAGE);
 				int len = GetWindowTextLength(hwndEdit) + 1;
 				wchar_t *pszText = (wchar_t*)mir_alloc(len*sizeof(wchar_t));
-				if (pszText != NULL && GetWindowText(hwndEdit, pszText, len + 1)) {
+				if (pszText != nullptr && GetWindowText(hwndEdit, pszText, len + 1)) {
 					TrimString(pszText);
 					db_set_ws(NULL, "AutoShutdown", "Message", pszText);
 				}
@@ -354,7 +354,7 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 				time_t timestamp;
 				DateTime_GetSystemtime(GetDlgItem(hwndDlg, IDC_TIME_TIMESTAMP), &st); /* time gets synchronized */
 				if (!SystemTimeToTimeStamp(&st, &timestamp))
-					timestamp = time(NULL);
+					timestamp = time(nullptr);
 				db_set_dw(NULL, "AutoShutdown", "TimeStamp", (DWORD)timestamp);
 			}
 			/* shutdown type */
@@ -365,8 +365,8 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 				index = SendDlgItemMessage(hwndDlg, IDC_COMBO_COUNTDOWNUNIT, CB_GETCURSEL, 0, 0);
 				if (index != LB_ERR)
 					db_set_dw(NULL, "AutoShutdown", "CountdownUnit", (DWORD)SendDlgItemMessage(hwndDlg, IDC_COMBO_COUNTDOWNUNIT, CB_GETITEMDATA, (WPARAM)index, 0));
-				db_set_dw(NULL, "AutoShutdown", "Countdown", (DWORD)GetDlgItemInt(hwndDlg, IDC_EDIT_COUNTDOWN, NULL, FALSE));
-				db_set_b(NULL, "AutoShutdown", "CpuUsageThreshold", (BYTE)GetDlgItemInt(hwndDlg, IDC_EDIT_CPUUSAGE, NULL, FALSE));
+				db_set_dw(NULL, "AutoShutdown", "Countdown", (DWORD)GetDlgItemInt(hwndDlg, IDC_EDIT_COUNTDOWN, nullptr, FALSE));
+				db_set_b(NULL, "AutoShutdown", "CpuUsageThreshold", (BYTE)GetDlgItemInt(hwndDlg, IDC_EDIT_CPUUSAGE, nullptr, FALSE));
 			}
 			/* watcher type */
 			{
@@ -399,11 +399,11 @@ static INT_PTR CALLBACK SettingsDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 
 static INT_PTR ServiceShowSettingsDialog(WPARAM, LPARAM)
 {
-	if (hwndSettingsDlg != NULL) { /* already opened, bring to front */
+	if (hwndSettingsDlg != nullptr) { /* already opened, bring to front */
 		SetForegroundWindow(hwndSettingsDlg);
 		return 0;
 	}
-	return CreateDialog(hInst, MAKEINTRESOURCE(IDD_SETTINGS), NULL, SettingsDlgProc) == NULL;
+	return CreateDialog(hInst, MAKEINTRESOURCE(IDD_SETTINGS), nullptr, SettingsDlgProc) == nullptr;
 }
 
 /************************* Toolbar ************************************/
@@ -412,7 +412,7 @@ static HANDLE hToolbarButton;
 
 int ToolbarLoaded(WPARAM, LPARAM)
 {
-	TTBButton ttb = { 0 };
+	TTBButton ttb = {};
 	ttb.hIconHandleUp = iconList[2].hIcolib;
 	ttb.hIconHandleDn = iconList[1].hIcolib;
 	ttb.pszService = "AutoShutdown/MenuCommand";
@@ -450,14 +450,14 @@ void SetShutdownMenuItem(bool fActive)
 	}
 	mi.pszService = "AutoShutdown/MenuCommand";
 	mi.flags = CMIF_UNICODE;
-	if (hMainMenuItem != NULL)
+	if (hMainMenuItem != nullptr)
 		Menu_ModifyItem(hMainMenuItem, mi.name.w, mi.hIcolibItem);
 	else
 		hMainMenuItem = Menu_AddMainMenuItem(&mi);
 
 	/* tray menu */
 	mi.position = 899999;
-	if (hTrayMenuItem != NULL)
+	if (hTrayMenuItem != nullptr)
 		Menu_ModifyItem(hTrayMenuItem, mi.name.w, mi.hIcolibItem);
 	else
 		hTrayMenuItem = Menu_AddTrayMenuItem(&mi);
@@ -479,11 +479,11 @@ void InitSettingsDlg(void)
 {
 	/* Menu Item */
 	CreateServiceFunction("AutoShutdown/MenuCommand", MenuItemCommand);
-	hMainMenuItem = hTrayMenuItem = NULL;
+	hMainMenuItem = hTrayMenuItem = nullptr;
 	SetShutdownMenuItem(false);
 	/* Hotkey */
 	AddHotkey();
 	/* Services */
-	hwndSettingsDlg = NULL;
+	hwndSettingsDlg = nullptr;
 	CreateServiceFunction(MS_AUTOSHUTDOWN_SHOWSETTINGSDIALOG, ServiceShowSettingsDialog);
 }
diff --git a/plugins/AutoShutdown/src/shutdownsvc.cpp b/plugins/AutoShutdown/src/shutdownsvc.cpp
index 095c55d25b..bce97d110c 100644
--- a/plugins/AutoShutdown/src/shutdownsvc.cpp
+++ b/plugins/AutoShutdown/src/shutdownsvc.cpp
@@ -52,10 +52,10 @@ static BOOL WinNT_SetPrivilege(wchar_t *pszPrivName, BOOL bEnable)
 	if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) {
 		tkp.PrivilegeCount = 1; /* one privilege is to set */
 		/* get the LUID for the shutdown privilege */
-		if (LookupPrivilegeValue(NULL, pszPrivName, &tkp.Privileges[0].Luid)) {
+		if (LookupPrivilegeValue(nullptr, pszPrivName, &tkp.Privileges[0].Luid)) {
 			tkp.Privileges[0].Attributes = bEnable ? SE_PRIVILEGE_ENABLED : 0;
 			/* get the shutdown privilege for this process */
-			bReturn = AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0);
+			bReturn = AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, nullptr, nullptr);
 		}
 		CloseHandle(hToken);
 	}
@@ -89,7 +89,7 @@ static BOOL IsShutdownTypeEnabled(BYTE shutdownType)
 			bReturn = TRUE;
 			if (RegOpenKeyEx(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer", 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS) {
 				dwSize = sizeof(dwSetting);
-				if (RegQueryValueEx(hKey, L"NoLogOff", 0, NULL, (LPBYTE)&dwSetting, &dwSize) == ERROR_SUCCESS)
+				if (RegQueryValueEx(hKey, L"NoLogOff", nullptr, nullptr, (LPBYTE)&dwSetting, &dwSize) == ERROR_SUCCESS)
 					if (dwSetting) bReturn = FALSE;
 				RegCloseKey(hKey);
 			}
@@ -103,7 +103,7 @@ static BOOL IsShutdownTypeEnabled(BYTE shutdownType)
 			bReturn = TRUE;
 			if (RegOpenKeyEx(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS) {
 				dwSize = sizeof(dwSetting);
-				if (!RegQueryValueEx(hKey, L"DisableLockWorkstation", 0, NULL, (LPBYTE)&dwSetting, &dwSize))
+				if (!RegQueryValueEx(hKey, L"DisableLockWorkstation", nullptr, nullptr, (LPBYTE)&dwSetting, &dwSize))
 					if (dwSetting)
 						bReturn = FALSE;
 				RegCloseKey(hKey);
@@ -183,16 +183,16 @@ static DWORD ShutdownNow(BYTE shutdownType)
 			DWORD dwConnItems = 0;
 			RASCONN *paConn = (RASCONN*)mir_alloc(dwConnSize);
 			dwErrCode = ERROR_NOT_ENOUGH_MEMORY;
-			if (paConn != NULL) {
+			if (paConn != nullptr) {
 				for (dwRetries = 5; dwRetries != 0; dwRetries--) { /* prevent infinite loop (rare) */
 					memset(paConn, 0, dwConnSize);
 					paConn[0].dwSize = sizeof(RASCONN);
 					dwErrCode = RasEnumConnections(paConn, &dwConnSize, &dwConnItems);
 					if (dwErrCode != ERROR_BUFFER_TOO_SMALL) break;
 					RASCONN *paConnBuf = (RASCONN*)mir_realloc(paConn, dwConnSize);
-					if (paConnBuf == NULL) {
+					if (paConnBuf == nullptr) {
 						mir_free(paConn);
-						paConn = NULL;
+						paConn = nullptr;
 						dwErrCode = ERROR_NOT_ENOUGH_MEMORY;
 						break;
 					}
@@ -202,11 +202,11 @@ static DWORD ShutdownNow(BYTE shutdownType)
 					for (dw = 0; dw < dwConnItems; ++dw) {
 						if (dwErrCode) {
 							if (RasHangUp(paConn[dw].hrasconn))
-								paConn[dw].hrasconn = NULL; /* do not wait for on error */
+								paConn[dw].hrasconn = nullptr; /* do not wait for on error */
 						}
 						else {
 							dwErrCode = RasHangUp(paConn[dw].hrasconn);
-							if (!dwErrCode) paConn[dw].hrasconn = NULL; /* do not wait for on error */
+							if (!dwErrCode) paConn[dw].hrasconn = nullptr; /* do not wait for on error */
 						}
 					}
 					/* RAS does not allow to quit directly after HangUp (see docs) */
@@ -214,7 +214,7 @@ static DWORD ShutdownNow(BYTE shutdownType)
 					memset(&rcs, 0, sizeof(RASCONNSTATUS));
 					rcs.dwSize = sizeof(RASCONNSTATUS);
 					for (dw = 0; dw < dwConnItems; ++dw) {
-						if (paConn[dw].hrasconn != NULL) {
+						if (paConn[dw].hrasconn != nullptr) {
 							while (RasGetConnectStatus(paConn[dw].hrasconn, &rcs) != ERROR_INVALID_HANDLE) {
 								Sleep(0); /* give rest of time silce to other threads with equal priority */
 								/* infinite loop protection (3000ms defined in docs) */
@@ -248,7 +248,7 @@ static DWORD ShutdownNow(BYTE shutdownType)
 			BroadcastEndSession(BSM_APPLICATIONS | BSM_ALLDESKTOPS, ENDSESSION_CLOSEAPP); /* app should close itself */
 			WinNT_SetPrivilege(SE_TCB_NAME, FALSE);
 
-			if (!InitiateSystemShutdownEx(NULL, TranslateT("AutoShutdown"), 0, TRUE, shutdownType == SDSDT_REBOOT, SHTDN_REASON_MAJOR_OTHER | SHTDN_REASON_MINOR_OTHER | SHTDN_REASON_FLAG_PLANNED))
+			if (!InitiateSystemShutdownEx(nullptr, TranslateT("AutoShutdown"), 0, TRUE, shutdownType == SDSDT_REBOOT, SHTDN_REASON_MAJOR_OTHER | SHTDN_REASON_MINOR_OTHER | SHTDN_REASON_FLAG_PLANNED))
 				dwErrCode = GetLastError();
 
 			/* cleanly close Miranda */
@@ -317,7 +317,7 @@ static INT_PTR CALLBACK ShutdownDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 				lf.lfWeight = FW_BOLD;
 				hBoldFont = CreateFontIndirect(&lf);
 			}
-			else hBoldFont = NULL;
+			else hBoldFont = nullptr;
 			SendDlgItemMessage(hwndDlg, IDC_TEXT_HEADER, WM_SETFONT, (WPARAM)hBoldFont, FALSE);
 			SetWindowLongPtr(GetDlgItem(hwndDlg, IDC_TEXT_HEADER), GWLP_USERDATA, (LONG_PTR)hBoldFont);
 		}
@@ -329,7 +329,7 @@ static INT_PTR CALLBACK ShutdownDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 			SendMessage(hwndDlg, M_UPDATE_COUNTDOWN, 0, countdown);
 		}
 		Skin_PlaySound("AutoShutdown_Countdown");
-		if (!SetTimer(hwndDlg, 1, 1000, NULL))
+		if (!SetTimer(hwndDlg, 1, 1000, nullptr))
 			PostMessage(hwndDlg, M_START_SHUTDOWN, 0, 0);
 
 		Utils_RestoreWindowPositionNoSize(hwndDlg, NULL, "AutoShutdown", "ConfirmDlg_");
@@ -343,14 +343,14 @@ static INT_PTR CALLBACK ShutdownDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 
 	case WM_DESTROY:
 		{
-			hwndShutdownDlg = NULL;
+			hwndShutdownDlg = nullptr;
 			ShowWindow(hwndDlg, SW_HIDE);
 			/* reallow foreground window changes (WinMe/2000+) */
 			LockSetForegroundWindow(LSFW_UNLOCK);
 			Utils_SaveWindowPosition(hwndDlg, NULL, "AutoShutdown", "ConfirmDlg_");
 			HFONT hFont = (HFONT)SendDlgItemMessage(hwndDlg, IDC_TEXT_HEADER, WM_GETFONT, 0, 0);
 			SendDlgItemMessage(hwndDlg, IDC_TEXT_HEADER, WM_SETFONT, 0, FALSE); /* no return value */
-			if (hFont != NULL) DeleteObject(hFont);
+			if (hFont != nullptr) DeleteObject(hFont);
 		}
 		return TRUE;
 
@@ -361,8 +361,8 @@ static INT_PTR CALLBACK ShutdownDlgProc(HWND hwndDlg, UINT msg, WPARAM wParam, L
 			DWORD dwErrCode = ShutdownNow(shutdownType);
 			if (dwErrCode != ERROR_SUCCESS) {
 				char *pszErr = GetWinErrorDescription(dwErrCode);
-				ShowInfoMessage(NIIF_ERROR, Translate("Automatic shutdown error"), Translate("The shutdown process failed!\nReason: %s"), (pszErr != NULL) ? pszErr : Translate("Unknown"));
-				if (pszErr != NULL) LocalFree(pszErr);
+				ShowInfoMessage(NIIF_ERROR, Translate("Automatic shutdown error"), Translate("The shutdown process failed!\nReason: %s"), (pszErr != nullptr) ? pszErr : Translate("Unknown"));
+				if (pszErr != nullptr) LocalFree(pszErr);
 			}
 			DestroyWindow(hwndDlg);
 		}
@@ -419,7 +419,7 @@ INT_PTR ServiceShutdown(WPARAM wParam, LPARAM lParam)
 	/* passing 0 as wParam is only to be used internally, undocumented */
 	if (!wParam) wParam = db_get_b(NULL, "AutoShutdown", "ShutdownType", SETTING_SHUTDOWNTYPE_DEFAULT);
 	if (!IsShutdownTypeEnabled((BYTE)wParam)) return 1; /* does shutdownType range check */
-	if ((BOOL)lParam && hwndShutdownDlg != NULL) return 2;
+	if ((BOOL)lParam && hwndShutdownDlg != nullptr) return 2;
 
 	/* ask others if allowed */
 	if (NotifyEventHooks(hEventOkToShutdown, wParam, lParam)) {
@@ -430,15 +430,15 @@ INT_PTR ServiceShutdown(WPARAM wParam, LPARAM lParam)
 	NotifyEventHooks(hEventShutdown, wParam, lParam);
 	/* show dialog */
 	if (lParam && db_get_b(NULL, "AutoShutdown", "ShowConfirmDlg", SETTING_SHOWCONFIRMDLG_DEFAULT))
-		if (CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_SHUTDOWNNOW), NULL, ShutdownDlgProc, (BYTE)wParam) != NULL)
+		if (CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_SHUTDOWNNOW), nullptr, ShutdownDlgProc, (BYTE)wParam) != nullptr)
 			return 0;
 	/* show error */
 
 	DWORD dwErrCode = ShutdownNow((BYTE)wParam);
 	if (dwErrCode != ERROR_SUCCESS) {
 		char *pszErr = GetWinErrorDescription(dwErrCode);
-		ShowInfoMessage(NIIF_ERROR, Translate("Automatic shutdown error"), Translate("Initiating the shutdown process failed!\nReason: %s"), (pszErr != NULL) ? pszErr : Translate("Unknown"));
-		if (pszErr != NULL)
+		ShowInfoMessage(NIIF_ERROR, Translate("Automatic shutdown error"), Translate("Initiating the shutdown process failed!\nReason: %s"), (pszErr != nullptr) ? pszErr : Translate("Unknown"));
+		if (pszErr != nullptr)
 			LocalFree(pszErr);
 		return 4;
 	}
@@ -482,7 +482,7 @@ INT_PTR ServiceGetTypeDescription(WPARAM wParam, LPARAM lParam)
 	if (!(lParam&GSTDF_UNICODE)) {
 		static char szConvBuf[128];
 		char *buf = u2a(pszDesc);
-		if (buf == NULL) return 0;
+		if (buf == nullptr) return 0;
 		mir_strncpy(szConvBuf, buf, sizeof(szConvBuf));
 		mir_free(buf);
 		return (INT_PTR)szConvBuf;
@@ -495,7 +495,7 @@ INT_PTR ServiceGetTypeDescription(WPARAM wParam, LPARAM lParam)
 void InitShutdownSvc(void)
 {
 	/* Shutdown Dialog */
-	hwndShutdownDlg = NULL;
+	hwndShutdownDlg = nullptr;
 	Skin_AddSound("AutoShutdown_Countdown", LPGENW("Alerts"), LPGENW("Automatic shutdown countdown"));
 
 	/* Events */
@@ -511,7 +511,7 @@ void InitShutdownSvc(void)
 void UninitShutdownSvc(void)
 {
 	/* Shutdown Dialog */
-	if (hwndShutdownDlg != NULL)
+	if (hwndShutdownDlg != nullptr)
 		DestroyWindow(hwndShutdownDlg);
 
 	/* Services */
diff --git a/plugins/AutoShutdown/src/utils.cpp b/plugins/AutoShutdown/src/utils.cpp
index 32272d33fe..e288740dbb 100644
--- a/plugins/AutoShutdown/src/utils.cpp
+++ b/plugins/AutoShutdown/src/utils.cpp
@@ -26,23 +26,23 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 // mir_free() the return value
 char* u2a(const WCHAR *pszUnicode)
 {
-	if (pszUnicode == NULL)
-		return NULL;
+	if (pszUnicode == nullptr)
+		return nullptr;
 	
 	int codepage = Langpack_GetDefaultCodePage();
 
 	/* without WC_COMPOSITECHECK some characters might get out strange (see MS blog) */
 	DWORD flags;
-	int cch = WideCharToMultiByte(codepage, flags = WC_COMPOSITECHECK, pszUnicode, -1, NULL, 0, NULL, NULL);
+	int cch = WideCharToMultiByte(codepage, flags = WC_COMPOSITECHECK, pszUnicode, -1, nullptr, 0, nullptr, nullptr);
 	if (!cch)
-		cch = WideCharToMultiByte(codepage, flags = 0, pszUnicode, -1, NULL, 0, NULL, NULL);
+		cch = WideCharToMultiByte(codepage, flags = 0, pszUnicode, -1, nullptr, 0, nullptr, nullptr);
 	if (!cch)
-		return NULL;
+		return nullptr;
 
 	char *psz = (char*)mir_alloc(cch);
-	if (psz != NULL && !WideCharToMultiByte(codepage, flags, pszUnicode, -1, psz, cch, NULL, NULL)) {
+	if (psz != nullptr && !WideCharToMultiByte(codepage, flags, pszUnicode, -1, psz, cch, nullptr, nullptr)) {
 		mir_free(psz);
-		return NULL;
+		return nullptr;
 	}
 	return psz;
 }
@@ -84,11 +84,11 @@ void ShowInfoMessage(BYTE flags, const char *pszTitle, const char *pszTextFmt, .
 	mir_vsnprintf(szText, _countof(szText), pszTextFmt, va);
 	va_end(va);
 
-	if (!Clist_TrayNotifyA(NULL, pszTitle, szText, flags, 30000)) // success
+	if (!Clist_TrayNotifyA(nullptr, pszTitle, szText, flags, 30000)) // success
 		return;
 
 	MSGBOXPARAMSA *mbp = (MSGBOXPARAMSA*)mir_calloc(sizeof(*mbp));
-	if (mbp == NULL) return;
+	if (mbp == nullptr) return;
 	mbp->cbSize = sizeof(*mbp);
 	mbp->lpszCaption = mir_strdup(pszTitle);
 	mbp->lpszText = mir_strdup(szText);
@@ -105,11 +105,11 @@ void ShowInfoMessage(BYTE flags, const char *pszTitle, const char *pszTextFmt, .
 // LocalFree() the return value
 char* GetWinErrorDescription(DWORD dwLastError)
 {
-	char *buf = NULL;
+	char *buf = nullptr;
 	DWORD flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM;
-	if (!FormatMessageA(flags, NULL, dwLastError, LANGIDFROMLCID(Langpack_GetDefaultLocale()), (char*)&buf, 0, NULL))
+	if (!FormatMessageA(flags, nullptr, dwLastError, LANGIDFROMLCID(Langpack_GetDefaultLocale()), (char*)&buf, 0, nullptr))
 		if (GetLastError() == ERROR_RESOURCE_LANG_NOT_FOUND)
-			FormatMessageA(flags, NULL, dwLastError, 0, (char*)&buf, 0, NULL);
+			FormatMessageA(flags, nullptr, dwLastError, 0, (char*)&buf, 0, nullptr);
 	return buf;
 }
 
@@ -160,12 +160,12 @@ BOOL GetFormatedCountdown(wchar_t *pszOut, int nSize, time_t countdown)
 	}
 	
 	/* WinVista */
-	if (pfnGetDurationFormat != NULL) {
+	if (pfnGetDurationFormat != nullptr) {
 		SYSTEMTIME st;
 		LCID locale;
 		locale = Langpack_GetDefaultLocale();
 		if (TimeStampToSystemTime(countdown, &st))
-			if (pfnGetDurationFormat(locale, 0, &st, 0, NULL, pszOut, nSize))
+			if (pfnGetDurationFormat(locale, 0, &st, 0, nullptr, pszOut, nSize))
 				return TRUE;
 		return FALSE;
 	}
@@ -182,13 +182,13 @@ BOOL GetFormatedDateTime(wchar_t *pszOut, int nSize, time_t timestamp, BOOL fSho
 	TimeStampToSystemTime(timestamp, &st);
 	/* today: no need to show the date */
 	if (!fShowDateEvenToday && st.wDay == stNow.wDay && st.wMonth == stNow.wMonth && st.wYear == stNow.wYear)
-		return GetTimeFormat(locale, ((st.wSecond == 0) ? TIME_NOSECONDS : 0) | TIME_FORCE24HOURFORMAT, &st, NULL, pszOut, nSize) != 0;
+		return GetTimeFormat(locale, ((st.wSecond == 0) ? TIME_NOSECONDS : 0) | TIME_FORCE24HOURFORMAT, &st, nullptr, pszOut, nSize) != 0;
 	/* show both date and time */
 	{
 		wchar_t szDate[128], szTime[128];
-		if (!GetTimeFormat(locale, ((st.wSecond == 0) ? TIME_NOSECONDS : 0) | TIME_FORCE24HOURFORMAT, &st, NULL, szTime, _countof(szTime)))
+		if (!GetTimeFormat(locale, ((st.wSecond == 0) ? TIME_NOSECONDS : 0) | TIME_FORCE24HOURFORMAT, &st, nullptr, szTime, _countof(szTime)))
 			return FALSE;
-		if (!GetDateFormat(locale, DATE_SHORTDATE, &st, NULL, szDate, _countof(szDate)))
+		if (!GetDateFormat(locale, DATE_SHORTDATE, &st, nullptr, szDate, _countof(szDate)))
 			return FALSE;
 		mir_snwprintf(pszOut, nSize, L"%s %s", szTime, szDate);
 		return TRUE;
diff --git a/plugins/AutoShutdown/src/watcher.cpp b/plugins/AutoShutdown/src/watcher.cpp
index d5422b632f..04f8429eb0 100644
--- a/plugins/AutoShutdown/src/watcher.cpp
+++ b/plugins/AutoShutdown/src/watcher.cpp
@@ -45,15 +45,15 @@ static void __stdcall MainThreadMapping(void *param)
 	HANDLE *phDoneEvent = (HANDLE*)param;
 	ServiceShutdown(0, TRUE); /* ensure main thread (for cpu usage shutdown) */
 	ServiceStopWatcher(0, 0);
-	if (*phDoneEvent != NULL)
+	if (*phDoneEvent != nullptr)
 		SetEvent(*phDoneEvent);
 }
 
 static void __inline ShutdownAndStopWatcher(void)
 {
-	HANDLE hDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
+	HANDLE hDoneEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
 	CallFunctionAsync(MainThreadMapping, &hDoneEvent);
-	if (hDoneEvent != NULL) {
+	if (hDoneEvent != nullptr) {
 		WaitForSingleObject(hDoneEvent, INFINITE);
 		CloseHandle(hDoneEvent);
 	}
@@ -72,13 +72,13 @@ static wchar_t* GetMessageText(BYTE **ppBlob, DWORD *pcbBlob)
 		return (WCHAR*)&(*ppBlob)[cb];
 	}
 	/* no Unicode data present, convert from ANSI */
-	int len = MultiByteToWideChar(CP_ACP, 0, (char*)*ppBlob, -1, NULL, 0);
+	int len = MultiByteToWideChar(CP_ACP, 0, (char*)*ppBlob, -1, nullptr, 0);
 	if (!len)
-		return NULL;
+		return nullptr;
 
 	BYTE *buf = (BYTE*)mir_realloc(*ppBlob, (*pcbBlob) + (len*sizeof(WCHAR)));
-	if (buf == NULL)
-		return NULL;
+	if (buf == nullptr)
+		return nullptr;
 
 	*pcbBlob += len*sizeof(WCHAR);
 	*ppBlob = buf;
@@ -94,7 +94,7 @@ static int MsgEventAdded(WPARAM, LPARAM hDbEvent)
 		DBEVENTINFO dbe = {};
 		dbe.cbBlob = db_event_getBlobSize(hDbEvent);
 		dbe.pBlob = (BYTE*)mir_alloc(dbe.cbBlob + 2); /* ensure term zero */
-		if (dbe.pBlob == NULL)
+		if (dbe.pBlob == nullptr)
 			return 0;
 		if (!db_event_get(hDbEvent, &dbe))
 			if (dbe.eventType == EVENTTYPE_MESSAGE && !(dbe.flags & DBEF_SENT)) {
@@ -102,7 +102,7 @@ static int MsgEventAdded(WPARAM, LPARAM hDbEvent)
 				if (!db_get_ws(NULL, "AutoShutdown", "Message", &dbv)) {
 					TrimString(dbv.ptszVal);
 					wchar_t *pszMsg = GetMessageText(&dbe.pBlob, &dbe.cbBlob);
-					if (pszMsg != NULL && wcsstr(pszMsg, dbv.ptszVal) != NULL)
+					if (pszMsg != nullptr && wcsstr(pszMsg, dbv.ptszVal) != nullptr)
 						ShutdownAndStopWatcher(); /* msg with specified text recvd */
 					mir_free(dbv.ptszVal); /* does NULL check */
 				}
@@ -131,7 +131,7 @@ static int ProtoAck(WPARAM, LPARAM lParam)
 					break; /* already in list */
 			/* insert into list */
 			HANDLE *buf = (HANDLE*)mir_realloc(transfers, (nTransfersCount + 1)*sizeof(HANDLE));
-			if (buf != NULL) {
+			if (buf != nullptr) {
 				transfers = buf;
 				transfers[nTransfersCount] = ack->hProcess;
 				++nTransfersCount;
@@ -148,8 +148,8 @@ static int ProtoAck(WPARAM, LPARAM lParam)
 					memmove(&transfers[i], &transfers[i + 1], (nTransfersCount - i - 1)*sizeof(HANDLE));
 				--nTransfersCount;
 				HANDLE *buf = (HANDLE*)mir_realloc(transfers, nTransfersCount*sizeof(HANDLE));
-				if (buf != NULL) transfers = buf;
-				else if (!nTransfersCount) transfers = NULL;
+				if (buf != nullptr) transfers = buf;
+				else if (!nTransfersCount) transfers = nullptr;
 				/* stop watcher */
 				if (!nTransfersCount && (currentWatcherType&SDWTF_FILETRANSFER))
 					ShutdownAndStopWatcher();
@@ -178,7 +178,7 @@ static BOOL CheckAllContactsOffline(void)
 	fSmartCheck = db_get_b(NULL, "AutoShutdown", "SmartOfflineCheck", SETTING_SMARTOFFLINECHECK_DEFAULT);
 	for (MCONTACT hContact = db_find_first(); hContact; hContact = db_find_next(hContact)) {
 		char *pszProto = GetContactProto(hContact);
-		if (pszProto != NULL && CallProtoService(pszProto, PS_GETSTATUS, 0, 0) != ID_STATUS_OFFLINE) {
+		if (pszProto != nullptr && CallProtoService(pszProto, PS_GETSTATUS, 0, 0) != ID_STATUS_OFFLINE) {
 			if (db_get_b(hContact, pszProto, "ChatRoom", 0)) continue;
 			if (db_get_w(hContact, pszProto, "Status", 0) != ID_STATUS_OFFLINE) {
 				if (fSmartCheck) {
@@ -197,9 +197,9 @@ static int StatusSettingChanged(WPARAM wParam, LPARAM lParam)
 {
 	if (currentWatcherType&SDWTF_STATUS) {
 		DBCONTACTWRITESETTING *dbcws = (DBCONTACTWRITESETTING*)lParam;
-		if ((HANDLE)wParam != NULL && dbcws->value.wVal == ID_STATUS_OFFLINE && !strcmp(dbcws->szSetting, "Status")) {
+		if ((HANDLE)wParam != nullptr && dbcws->value.wVal == ID_STATUS_OFFLINE && !strcmp(dbcws->szSetting, "Status")) {
 			char *pszProto = GetContactProto(wParam);
-			if (pszProto != NULL && !strcmp(dbcws->szModule, pszProto))
+			if (pszProto != nullptr && !strcmp(dbcws->szModule, pszProto))
 				if (CheckAllContactsOffline())
 					ShutdownAndStopWatcher();
 		}
@@ -235,7 +235,7 @@ static BOOL CALLBACK CpuUsageWatcherProc(BYTE nCpuUsage, LPARAM lParam)
 static int WeatherUpdated(WPARAM wParam, LPARAM lParam)
 {
 	char *pszProto = GetContactProto(wParam);
-	if ((BOOL)lParam && pszProto != NULL && CallProtoService(pszProto, PS_GETSTATUS, 0, 0) == THUNDER)
+	if ((BOOL)lParam && pszProto != nullptr && CallProtoService(pszProto, PS_GETSTATUS, 0, 0) == THUNDER)
 		if (db_get_b(NULL, "AutoShutdown", "WeatherShutdown", SETTING_WEATHERSHUTDOWN_DEFAULT))
 			ServiceShutdown(SDSDT_SHUTDOWN, TRUE);
 	return 0;
@@ -334,11 +334,11 @@ void InitWatcher(void)
 	/* Idle Shutdown */
 	hHookIdleChanged = HookEvent(ME_IDLE_CHANGED, IdleChanged);
 	/* Transfer Shutdown */
-	transfers = NULL;
+	transfers = nullptr;
 	nTransfersCount = 0;
 	hHookProtoAck = HookEvent(ME_PROTO_ACK, ProtoAck);
 	/* Weather Shutdown */
-	hHookWeatherUpdated = NULL;
+	hHookWeatherUpdated = nullptr;
 	/* Services */
 	hEventWatcherChanged = CreateHookableEvent(ME_AUTOSHUTDOWN_WATCHERCHANGED);
 	CreateServiceFunction(MS_AUTOSHUTDOWN_STARTWATCHER, ServiceStartWatcher);
-- 
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