Remove unneeded NULL casts.

dlls/dmband/band.c

@@ -682,7 +682,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicBandImpl (LPCGUID lpcGUID, LPVOID* ppobj,
 	
   obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicBandImpl));
   if (NULL == obj) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   obj->UnknownVtbl = &DirectMusicBand_Unknown_Vtbl;

dlls/dmband/bandtrack.c

@@ -582,7 +582,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicBandTrack (LPCGUID lpcGUID, LPVOID *ppobj
 	
   track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicBandTrack));
   if (NULL == track) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   track->UnknownVtbl = &DirectMusicBandTrack_Unknown_Vtbl;

dlls/dmcompos/chordmap.c

@@ -522,7 +522,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicChordMapImpl (LPCGUID lpcGUID, LPVOID* pp
 	
 	obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicChordMapImpl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->UnknownVtbl = &DirectMusicChordMap_Unknown_Vtbl;

dlls/dmcompos/chordmaptrack.c

@@ -265,7 +265,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicChordMapTrack (LPCGUID lpcGUID, LPVOID *p
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicChordMapTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicChordMapTrack_Unknown_Vtbl;

dlls/dmcompos/signposttrack.c

@@ -263,7 +263,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicSignPostTrack (LPCGUID lpcGUID, LPVOID *p
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSignPostTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicSignPostTrack_Unknown_Vtbl;

dlls/dmime/audiopath.c

@@ -631,7 +631,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicAudioPathImpl (LPCGUID lpcGUID, LPVOID* p
 	
 	obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicAudioPathImpl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->UnknownVtbl = &DirectMusicAudioPath_Unknown_Vtbl;

dlls/dmime/graph.c

@@ -596,7 +596,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicGraphImpl (LPCGUID lpcGUID, LPVOID* ppobj
   
   obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicGraphImpl));
   if (NULL == obj) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   obj->UnknownVtbl = &DirectMusicGraph_Unknown_Vtbl;

dlls/dmime/lyricstrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicLyricsTrack (LPCGUID lpcGUID, LPVOID *ppo
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLyricsTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicLyricsTrack_Unknown_Vtbl;

dlls/dmime/markertrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicMarkerTrack (LPCGUID lpcGUID, LPVOID *ppo
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicMarkerTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicMarkerTrack_Unknown_Vtbl;

dlls/dmime/paramcontroltrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicParamControlTrack (LPCGUID lpcGUID, LPVOI
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicParamControlTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicParamControlTrack_Unknown_Vtbl;

dlls/dmime/patterntrack.c

@@ -87,7 +87,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicPatternTrackImpl (LPCGUID lpcGUID, LPVOID
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicPatternTrackImpl));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->lpVtbl = &DirectMusicPatternTrack_Vtbl;

dlls/dmime/segment.c

@@ -1283,7 +1283,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicSegmentImpl (LPCGUID lpcGUID, LPVOID* ppo
   
   obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSegment8Impl));
   if (NULL == obj) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   obj->UnknownVtbl = &DirectMusicSegment8_Unknown_Vtbl;

dlls/dmime/segmentstate.c

@@ -116,7 +116,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicSegmentStateImpl (LPCGUID lpcGUID, LPVOID
 	
 	obj = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSegmentState8Impl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->lpVtbl = &DirectMusicSegmentState8_Vtbl;

dlls/dmime/segtriggertrack.c

@@ -506,7 +506,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicSegTriggerTrack (LPCGUID lpcGUID, LPVOID
 	
   track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSegTriggerTrack));
   if (NULL == track) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   track->UnknownVtbl = &DirectMusicSegTriggerTrack_Unknown_Vtbl;

dlls/dmime/seqtrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicSeqTrack (LPCGUID lpcGUID, LPVOID *ppobj,
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSeqTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicSeqTrack_Unknown_Vtbl;

dlls/dmime/sysextrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicSysExTrack (LPCGUID lpcGUID, LPVOID *ppob
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSysExTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicSysExTrack_Unknown_Vtbl;

dlls/dmime/tempotrack.c

@@ -393,7 +393,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicTempoTrack (LPCGUID lpcGUID, LPVOID *ppob
 	
   track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicTempoTrack));
   if (NULL == track) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   track->UnknownVtbl = &DirectMusicTempoTrack_Unknown_Vtbl;

dlls/dmime/timesigtrack.c

@@ -264,7 +264,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicTimeSigTrack (LPCGUID lpcGUID, LPVOID *pp
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicTimeSigTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicTimeSigTrack_Unknown_Vtbl;

dlls/dmime/tool.c

@@ -115,7 +115,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicobjImpl (LPCGUID lpcGUID, LPVOID *ppobj,
 	
 	obj = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicTool8Impl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->lpVtbl = &DirectMusicTool8_Vtbl;

dlls/dmime/wavetrack.c

@@ -265,7 +265,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicWaveTrack (LPCGUID lpcGUID, LPVOID *ppobj
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicWaveTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicWaveTrack_Unknown_Vtbl;

dlls/dmloader/container.c

@@ -886,7 +886,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicContainerImpl (LPCGUID lpcGUID, LPVOID* p
 
 	obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicContainerImpl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->ContainerVtbl = &DirectMusicContainer_Container_Vtbl;

dlls/dmloader/loaderstream.c

@@ -286,7 +286,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicLoaderFileStream (LPVOID* ppobj) {
 	TRACE("(%p)\n", ppobj);
 	obj = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLoaderFileStream));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->StreamVtbl = &DirectMusicLoaderFileStream_Stream_Vtbl;
@@ -552,7 +552,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicLoaderResourceStream (LPVOID* ppobj) {
 	TRACE("(%p)\n", ppobj);
 	obj = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLoaderResourceStream));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->StreamVtbl = &DirectMusicLoaderResourceStream_Stream_Vtbl;
@@ -810,7 +810,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicLoaderGenericStream (LPVOID* ppobj) {
 	TRACE("(%p)\n", ppobj);
 	obj = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLoaderGenericStream));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->StreamVtbl = &DirectMusicLoaderGenericStream_Stream_Vtbl;

dlls/dmscript/scripttrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicScriptTrack (LPCGUID lpcGUID, LPVOID *ppo
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicScriptTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicScriptTrack_Unknown_Vtbl;

dlls/dmstyle/auditiontrack.c

@@ -259,7 +259,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicAuditionTrack (LPCGUID lpcGUID, LPVOID *p
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicAuditionTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicAuditionTrack_Unknown_Vtbl;

dlls/dmstyle/chordtrack.c

@@ -387,7 +387,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicChordTrack (LPCGUID lpcGUID, LPVOID *ppob
   
   track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicChordTrack));
   if (NULL == track) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   track->UnknownVtbl = &DirectMusicChordTrack_Unknown_Vtbl;

dlls/dmstyle/commandtrack.c

@@ -321,7 +321,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicCommandTrack (LPCGUID lpcGUID, LPVOID *pp
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicCommandTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicCommandTrack_Unknown_Vtbl;

dlls/dmstyle/motiftrack.c

@@ -265,7 +265,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicMotifTrack (LPCGUID lpcGUID, LPVOID *ppob
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicMotifTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicMotifTrack_Unknown_Vtbl;

dlls/dmstyle/mutetrack.c

@@ -262,7 +262,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicMuteTrack (LPCGUID lpcGUID, LPVOID *ppobj
 	
 	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicMuteTrack));
 	if (NULL == track) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	track->UnknownVtbl = &DirectMusicMuteTrack_Unknown_Vtbl;

dlls/dmstyle/style.c

@@ -1041,7 +1041,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicStyleImpl (LPCGUID lpcGUID, LPVOID* ppobj
 	
   obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicStyle8Impl));
   if (NULL == obj) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   obj->UnknownVtbl = &DirectMusicStyle8_Unknown_Vtbl;

dlls/dmstyle/styletrack.c

@@ -432,7 +432,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicStyleTrack (LPCGUID lpcGUID, LPVOID *ppob
   
   track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicStyleTrack));
   if (NULL == track) {
-    *ppobj = (LPVOID) NULL;
+    *ppobj = NULL;
     return E_OUTOFMEMORY;
   }
   track->UnknownVtbl = &DirectMusicStyleTrack_Unknown_Vtbl;

dlls/dmusic/buffer.c

@@ -155,7 +155,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicBufferImpl (LPCGUID lpcGUID, LPVOID* ppob
 	
 	dmbuff = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicBufferImpl));
 	if (NULL == dmbuff) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	dmbuff->lpVtbl = &DirectMusicBuffer_Vtbl;

dlls/dmusic/collection.c

@@ -742,7 +742,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicCollectionImpl (LPCGUID lpcGUID, LPVOID*
 	
 	obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicCollectionImpl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->UnknownVtbl = &DirectMusicCollection_Unknown_Vtbl;

dlls/dmusic/download.c

@@ -72,7 +72,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicDownloadImpl (LPCGUID lpcGUID, LPVOID* pp
 	
 	dmdl = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicDownloadImpl));
 	if (NULL == dmdl) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	dmdl->lpVtbl = &DirectMusicDownload_Vtbl;

dlls/dmusic/downloadedinstrument.c

@@ -67,7 +67,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicDownloadedInstrumentImpl (LPCGUID lpcGUID
 	
 	dmdlinst = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicDownloadedInstrumentImpl));
 	if (NULL == dmdlinst) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	dmdlinst->lpVtbl = &DirectMusicDownloadedInstrument_Vtbl;

dlls/dmusic/instrument.c

@@ -118,7 +118,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicInstrumentImpl (LPCGUID lpcGUID, LPVOID*
 	
 	dminst = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicInstrumentImpl));
 	if (NULL == dminst) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	dminst->UnknownVtbl = &DirectMusicInstrument_Unknown_Vtbl;

dlls/dswave/dswave.c

@@ -715,7 +715,7 @@ HRESULT WINAPI DMUSIC_CreateDirectMusicWaveImpl (LPCGUID lpcGUID, LPVOID* ppobj,
 	
 	obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicWaveImpl));
 	if (NULL == obj) {
-		*ppobj = (LPVOID) NULL;
+		*ppobj = NULL;
 		return E_OUTOFMEMORY;
 	}
 	obj->UnknownVtbl = &DirectMusicWave_Unknown_Vtbl;

dlls/msvideo/msvideo_main.c

@@ -438,7 +438,7 @@ HIC MSVIDEO_OpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode,
 
     whic->driverId = (DWORD)MSVIDEO_SendMessage(whic, DRV_OPEN, 0, (DWORD)&icopen);
     /* FIXME: What should we put here? */
-    whic->hdrv = (HDRVR)0;
+    whic->hdrv = NULL;
     
     if (whic->driverId == 0) 
     {

dlls/shlwapi/ordinal.c

@@ -1936,7 +1936,7 @@ HMENU WINAPI SHGetMenuFromID(HMENU hMenu, UINT uID)
   mi.fMask = MIIM_SUBMENU;
 
   if (!GetMenuItemInfoA(hMenu, uID, 0, &mi))
-    return (HMENU)NULL;
+    return NULL;
 
   return mi.hSubMenu;
 }
@@ -2418,8 +2418,8 @@ HWND WINAPI SHCreateWorkerWindowA(LONG wndProc, HWND hWndParent, DWORD dwExStyle
   wc.cbClsExtra    = 0;
   wc.cbWndExtra    = 4;
   wc.hInstance     = shlwapi_hInstance;
-  wc.hIcon         = (HICON)0;
-  wc.hCursor       = LoadCursorA((HINSTANCE)0, (LPSTR)IDC_ARROW);
+  wc.hIcon         = NULL;
+  wc.hCursor       = LoadCursorA(NULL, (LPSTR)IDC_ARROW);
   wc.hbrBackground = (HBRUSH)COLOR_BTNSHADOW;
   wc.lpszMenuName  = NULL;
   wc.lpszClassName = szClass;
@@ -2705,8 +2705,8 @@ HWND WINAPI SHCreateWorkerWindowW(LONG wndProc, HWND hWndParent, DWORD dwExStyle
   wc.cbClsExtra    = 0;
   wc.cbWndExtra    = 4;
   wc.hInstance     = shlwapi_hInstance;
-  wc.hIcon         = (HICON)0;
-  wc.hCursor       = LoadCursorA((HINSTANCE)0, (LPSTR)IDC_ARROW);
+  wc.hIcon         = NULL;
+  wc.hCursor       = LoadCursorA(NULL, (LPSTR)IDC_ARROW);
   wc.hbrBackground = (HBRUSH)COLOR_BTNSHADOW;
   wc.lpszMenuName  = NULL;
   wc.lpszClassName = szClass;

dlls/winmm/mmio.c

@@ -703,7 +703,7 @@ HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO* lpmmioinfo,
     {
         INT     len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL );
         szFn = HeapAlloc( GetProcessHeap(), 0, len );
-        if (!szFn) return (HMMIO)NULL;
+        if (!szFn) return NULL;
         WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL );
     }
 

dlls/wintab32/wintab32.c

@@ -52,7 +52,7 @@ static VOID TABLET_Register()
     wndClass.lpfnWndProc = TABLET_WindowProc;
     wndClass.cbClsExtra = 0;
     wndClass.cbWndExtra = 0;
-    wndClass.hCursor = (HCURSOR)NULL;
+    wndClass.hCursor = NULL;
     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW +1);
     wndClass.lpszClassName = WC_TABLETCLASSNAME;
     RegisterClassW(&wndClass);
@@ -60,7 +60,7 @@ static VOID TABLET_Register()
 
 static VOID TABLET_Unregister()
 {
-    UnregisterClassW(WC_TABLETCLASSNAME, (HINSTANCE)NULL);
+    UnregisterClassW(WC_TABLETCLASSNAME, NULL);
 }
 
 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpReserved)

programs/regedit/framewnd.c

@@ -573,7 +573,7 @@ LRESULT CALLBACK FrameWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lPa
     case WM_CREATE:
         CreateWindowEx(0, szChildClass, _T("regedit child window"), WS_CHILD | WS_VISIBLE,
                        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
-                       hWnd, (HMENU)0, hInst, 0);
+                       hWnd, NULL, hInst, 0);
         break;
     case WM_COMMAND:
         if (!_CmdWndProc(hWnd, message, wParam, lParam))

programs/regedit/main.c

@@ -181,7 +181,7 @@ int APIENTRY WinMain(HINSTANCE hInstance,
     hAccel = LoadAccelerators(hInstance, (LPCTSTR)IDC_REGEDIT);
 
     /* Main message loop */
-    while (GetMessage(&msg, (HWND)NULL, 0, 0)) {
+    while (GetMessage(&msg, NULL, 0, 0)) {
         if (!TranslateAccelerator(hFrameWnd, hAccel, &msg)
            && !TranslateChildTabMessage(&msg)) {
             TranslateMessage(&msg);