itss: Standardize the COM usage in moniker.c.

dlls/itss/moniker.c

@@ -43,19 +43,24 @@ WINE_DEFAULT_DEBUG_CHANNEL(itss);
 /*****************************************************************************/
 
 typedef struct {
-    const IMonikerVtbl *vtbl_ITS_IMoniker;
+    IMoniker IMoniker_iface;
     LONG ref;
     LPWSTR szHtml;
     WCHAR szFile[1];
 } ITS_IMonikerImpl;
 
+static inline ITS_IMonikerImpl *impl_from_IMoniker(IMoniker *iface)
+{
+    return CONTAINING_RECORD(iface, ITS_IMonikerImpl, IMoniker_iface);
+}
+
 /*** IUnknown methods ***/
 static HRESULT WINAPI ITS_IMonikerImpl_QueryInterface(
     IMoniker* iface,
     REFIID riid,
     void** ppvObject)
 {
-    ITS_IMonikerImpl *This = (ITS_IMonikerImpl *)iface;
+    ITS_IMonikerImpl *This = impl_from_IMoniker(iface);
 
     if (IsEqualGUID(riid, &IID_IUnknown)
 	|| IsEqualGUID(riid, &IID_IParseDisplayName))
@@ -72,7 +77,7 @@ static HRESULT WINAPI ITS_IMonikerImpl_QueryInterface(
 static ULONG WINAPI ITS_IMonikerImpl_AddRef(
     IMoniker* iface)
 {
-    ITS_IMonikerImpl *This = (ITS_IMonikerImpl *)iface;
+    ITS_IMonikerImpl *This = impl_from_IMoniker(iface);
     TRACE("%p\n", This);
     return InterlockedIncrement(&This->ref);
 }
@@ -80,7 +85,7 @@ static ULONG WINAPI ITS_IMonikerImpl_AddRef(
 static ULONG WINAPI ITS_IMonikerImpl_Release(
     IMoniker* iface)
 {
-    ITS_IMonikerImpl *This = (ITS_IMonikerImpl *)iface;
+    ITS_IMonikerImpl *This = impl_from_IMoniker(iface);
     ULONG ref = InterlockedDecrement(&This->ref);
 
     if (ref == 0) {
@@ -96,7 +101,7 @@ static HRESULT WINAPI ITS_IMonikerImpl_GetClassID(
     IMoniker* iface,
     CLSID* pClassID)
 {
-    ITS_IMonikerImpl *This = (ITS_IMonikerImpl *)iface;
+    ITS_IMonikerImpl *This = impl_from_IMoniker(iface);
 
     TRACE("%p %p\n", This, pClassID);
     *pClassID = CLSID_ITStorage;
@@ -155,7 +160,7 @@ static HRESULT WINAPI ITS_IMonikerImpl_BindToStorage(
     REFIID riid,
     void** ppvObj)
 {
-    ITS_IMonikerImpl *This = (ITS_IMonikerImpl *)iface;
+    ITS_IMonikerImpl *This = impl_from_IMoniker(iface);
     DWORD grfMode = STGM_SIMPLE | STGM_READ | STGM_SHARE_EXCLUSIVE;
     HRESULT r;
     IStorage *stg = NULL;
@@ -279,7 +284,7 @@ static HRESULT WINAPI ITS_IMonikerImpl_GetDisplayName(
     IMoniker* pmkToLeft,
     LPOLESTR* ppszDisplayName)
 {
-    ITS_IMonikerImpl *This = (ITS_IMonikerImpl *)iface;
+    ITS_IMonikerImpl *This = impl_from_IMoniker(iface);
     static const WCHAR szFormat[] = {
         'm','s','-','i','t','s',':','%','s',':',':','%','s',0 };
     DWORD len = sizeof szFormat / sizeof(WCHAR);
@@ -352,7 +357,7 @@ static HRESULT ITS_IMoniker_create( IMoniker **ppObj, LPCWSTR name, DWORD n )
     sz = sizeof(ITS_IMonikerImpl) + strlenW( name )*sizeof(WCHAR);
 
     itsmon = HeapAlloc( GetProcessHeap(), 0, sz );
-    itsmon->vtbl_ITS_IMoniker = &ITS_IMonikerImpl_Vtbl;
+    itsmon->IMoniker_iface.lpVtbl = &ITS_IMonikerImpl_Vtbl;
     itsmon->ref = 1;
     strcpyW( itsmon->szFile, name );
     itsmon->szHtml = &itsmon->szFile[n];
@@ -362,7 +367,7 @@ static HRESULT ITS_IMoniker_create( IMoniker **ppObj, LPCWSTR name, DWORD n )
 
     TRACE("-> %p %s %s\n", itsmon,
           debugstr_w(itsmon->szFile), debugstr_w(itsmon->szHtml) );
-    *ppObj = (IMoniker*) itsmon;
+    *ppObj = &itsmon->IMoniker_iface;
 
     ITSS_LockModule();
     return S_OK;
@@ -371,16 +376,21 @@ static HRESULT ITS_IMoniker_create( IMoniker **ppObj, LPCWSTR name, DWORD n )
 /*****************************************************************************/
 
 typedef struct {
-    const IParseDisplayNameVtbl *vtbl_ITS_IParseDisplayName;
+    IParseDisplayName IParseDisplayName_iface;
     LONG ref;
 } ITS_IParseDisplayNameImpl;
 
+static inline ITS_IParseDisplayNameImpl *impl_from_IParseDisplayName(IParseDisplayName *iface)
+{
+    return CONTAINING_RECORD(iface, ITS_IParseDisplayNameImpl, IParseDisplayName_iface);
+}
+
 static HRESULT WINAPI ITS_IParseDisplayNameImpl_QueryInterface(
     IParseDisplayName* iface,
     REFIID riid,
     void** ppvObject)
 {
-    ITS_IParseDisplayNameImpl *This = (ITS_IParseDisplayNameImpl *)iface;
+    ITS_IParseDisplayNameImpl *This = impl_from_IParseDisplayName(iface);
 
     if (IsEqualGUID(riid, &IID_IUnknown)
 	|| IsEqualGUID(riid, &IID_IParseDisplayName))
@@ -397,7 +407,7 @@ static HRESULT WINAPI ITS_IParseDisplayNameImpl_QueryInterface(
 static ULONG WINAPI ITS_IParseDisplayNameImpl_AddRef(
     IParseDisplayName* iface)
 {
-    ITS_IParseDisplayNameImpl *This = (ITS_IParseDisplayNameImpl *)iface;
+    ITS_IParseDisplayNameImpl *This = impl_from_IParseDisplayName(iface);
     TRACE("%p\n", This);
     return InterlockedIncrement(&This->ref);
 }
@@ -405,7 +415,7 @@ static ULONG WINAPI ITS_IParseDisplayNameImpl_AddRef(
 static ULONG WINAPI ITS_IParseDisplayNameImpl_Release(
     IParseDisplayName* iface)
 {
-    ITS_IParseDisplayNameImpl *This = (ITS_IParseDisplayNameImpl *)iface;
+    ITS_IParseDisplayNameImpl *This = impl_from_IParseDisplayName(iface);
     ULONG ref = InterlockedDecrement(&This->ref);
 
     if (ref == 0) {
@@ -428,7 +438,7 @@ static HRESULT WINAPI ITS_IParseDisplayNameImpl_ParseDisplayName(
     const DWORD prefix_len = (sizeof szPrefix/sizeof szPrefix[0])-1;
     DWORD n;
 
-    ITS_IParseDisplayNameImpl *This = (ITS_IParseDisplayNameImpl *)iface;
+    ITS_IParseDisplayNameImpl *This = impl_from_IParseDisplayName(iface);
 
     TRACE("%p %s %p %p\n", This,
           debugstr_w( pszDisplayName ), pchEaten, ppmkOut );
@@ -469,7 +479,7 @@ HRESULT ITS_IParseDisplayName_create(IUnknown *pUnkOuter, LPVOID *ppObj)
         return CLASS_E_NOAGGREGATION;
 
     its = HeapAlloc( GetProcessHeap(), 0, sizeof(ITS_IParseDisplayNameImpl) );
-    its->vtbl_ITS_IParseDisplayName = &ITS_IParseDisplayNameImpl_Vtbl;
+    its->IParseDisplayName_iface.lpVtbl = &ITS_IParseDisplayNameImpl_Vtbl;
     its->ref = 1;
 
     TRACE("-> %p\n", its);