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Sweden-Number/dlls/devenum/mediacatenum.c

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/*
* IEnumMoniker implementation for DEVENUM.dll
*
* Copyright (C) 2002 Robert Shearman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* NOTES ON THIS FILE:
* - Implements IEnumMoniker interface which enumerates through moniker
* objects created from HKEY_CLASSES/CLSID/{DEVICE_CLSID}/Instance
*/
#include "devenum_private.h"
#include "vfwmsgs.h"
#include "oleauto.h"
#include "ocidl.h"
#include "wine/debug.h"
/* #define ICOM_THIS_From_IROTData(class, name) class* This = (class*)(((char*)name)-sizeof(void*)) */
WINE_DEFAULT_DEBUG_CHANNEL(devenum);
static ULONG WINAPI DEVENUM_IEnumMoniker_AddRef(LPENUMMONIKER iface);
static ULONG WINAPI DEVENUM_IMediaCatMoniker_AddRef(LPMONIKER iface);
static ULONG WINAPI DEVENUM_IPropertyBag_AddRef(LPPROPERTYBAG iface);
typedef struct
{
IPropertyBagVtbl *lpVtbl;
DWORD ref;
HKEY hkey;
} RegPropBagImpl;
static HRESULT WINAPI DEVENUM_IPropertyBag_QueryInterface(
LPPROPERTYBAG iface,
REFIID riid,
LPVOID *ppvObj)
{
RegPropBagImpl *This = (RegPropBagImpl *)iface;
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (This == NULL || ppvObj == NULL) return E_POINTER;
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IPropertyBag))
{
*ppvObj = (LPVOID)iface;
DEVENUM_IPropertyBag_AddRef(iface);
return S_OK;
}
FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/**********************************************************************
* DEVENUM_IPropertyBag_AddRef (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IPropertyBag_AddRef(LPPROPERTYBAG iface)
{
RegPropBagImpl *This = (RegPropBagImpl *)iface;
TRACE("\n");
return InterlockedIncrement(&This->ref);
}
/**********************************************************************
* DEVENUM_IPropertyBag_Release (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IPropertyBag_Release(LPPROPERTYBAG iface)
{
RegPropBagImpl *This = (RegPropBagImpl *)iface;
ULONG ref;
TRACE("\n");
ref = InterlockedDecrement(&This->ref);
if (ref == 0) {
RegCloseKey(This->hkey);
CoTaskMemFree(This);
DEVENUM_UnlockModule();
}
return ref;
}
static HRESULT WINAPI DEVENUM_IPropertyBag_Read(
LPPROPERTYBAG iface,
LPCOLESTR pszPropName,
VARIANT* pVar,
IErrorLog* pErrorLog)
{
LPVOID pData = NULL;
LONG received;
DWORD type = 0;
RegPropBagImpl *This = (RegPropBagImpl *)iface;
HRESULT res = S_OK;
LONG reswin32;
TRACE("(%p)->(%s, %p, %p)\n", This, debugstr_w(pszPropName), pVar, pErrorLog);
if (!pszPropName || !pVar)
return E_POINTER;
reswin32 = RegQueryValueExW(This->hkey, pszPropName, NULL, NULL, NULL, &received);
res = HRESULT_FROM_WIN32(reswin32);
if (SUCCEEDED(res))
{
pData = HeapAlloc(GetProcessHeap(), 0, received);
/* work around a GCC bug that occurs here unless we use the reswin32 variable as well */
reswin32 = RegQueryValueExW(This->hkey, pszPropName, NULL, &type, pData, &received);
res = HRESULT_FROM_WIN32(reswin32);
}
if (SUCCEEDED(res))
{
res = E_INVALIDARG; /* assume we cannot coerce into right type */
TRACE("Read %ld bytes (%s)\n", received, type == REG_SZ ? debugstr_w((LPWSTR)pData) : "binary data");
switch (type)
{
case REG_SZ:
switch (V_VT(pVar))
{
case VT_LPWSTR:
V_UNION(pVar, bstrVal) = CoTaskMemAlloc(received);
memcpy(V_UNION(pVar, bstrVal), (LPWSTR)pData, received);
res = S_OK;
break;
case VT_EMPTY:
V_VT(pVar) = VT_BSTR;
/* fall through */
case VT_BSTR:
V_UNION(pVar, bstrVal) = SysAllocStringLen((LPWSTR)pData, received/sizeof(WCHAR) - 1);
res = S_OK;
break;
}
break;
case REG_DWORD:
TRACE("REG_DWORD: %lx\n", *(DWORD *)pData);
switch (V_VT(pVar))
{
case VT_EMPTY:
V_VT(pVar) = VT_I4;
/* fall through */
case VT_I4:
case VT_UI4:
V_UNION(pVar, ulVal) = *(DWORD *)pData;
res = S_OK;
break;
}
break;
case REG_BINARY:
{
SAFEARRAYBOUND bound;
void * pArrayElements;
bound.lLbound = 0;
bound.cElements = received;
TRACE("REG_BINARY: len = %ld\n", received);
switch (V_VT(pVar))
{
case VT_EMPTY:
case VT_ARRAY | VT_UI1:
if (!(V_UNION(pVar, parray) = SafeArrayCreate(VT_UI1, 1, &bound)))
res = E_OUTOFMEMORY;
res = S_OK;
break;
}
if (res == E_INVALIDARG)
break;
res = SafeArrayAccessData(V_UNION(pVar, parray), &pArrayElements);
if (FAILED(res))
break;
CopyMemory(pArrayElements, pData, received);
res = SafeArrayUnaccessData(V_UNION(pVar, parray));
break;
}
}
if (res == E_INVALIDARG)
FIXME("Variant type %x not supported for regtype %lx\n", V_VT(pVar), type);
}
HeapFree(GetProcessHeap(), 0, pData);
TRACE("<- %lx\n", res);
return res;
}
static HRESULT WINAPI DEVENUM_IPropertyBag_Write(
LPPROPERTYBAG iface,
LPCOLESTR pszPropName,
VARIANT* pVar)
{
RegPropBagImpl *This = (RegPropBagImpl *)iface;
LPVOID lpData = NULL;
DWORD cbData = 0;
DWORD dwType = 0;
HRESULT res = S_OK;
TRACE("(%p)->(%s, %p)\n", This, debugstr_w(pszPropName), pVar);
switch (V_VT(pVar))
{
case VT_BSTR:
TRACE("writing %s\n", debugstr_w(V_UNION(pVar, bstrVal)));
lpData = (LPVOID)V_UNION(pVar, bstrVal);
dwType = REG_SZ;
cbData = (lstrlenW(V_UNION(pVar, bstrVal)) + 1) * sizeof(WCHAR);
break;
case VT_I4:
case VT_UI4:
TRACE("writing %lu\n", V_UNION(pVar, ulVal));
lpData = (LPVOID)&V_UNION(pVar, ulVal);
dwType = REG_DWORD;
cbData = sizeof(DWORD);
break;
case VT_ARRAY | VT_UI1:
{
LONG lUbound = 0;
LONG lLbound = 0;
dwType = REG_BINARY;
res = SafeArrayGetLBound(V_UNION(pVar, parray), 1, &lLbound);
res = SafeArrayGetUBound(V_UNION(pVar, parray), 1, &lUbound);
cbData = (lUbound - lLbound + 1) /* * sizeof(BYTE)*/;
TRACE("cbData: %ld\n", cbData);
res = SafeArrayAccessData(V_UNION(pVar, parray), &lpData);
break;
}
default:
FIXME("Variant type %d not handled\n", V_VT(pVar));
return E_FAIL;
}
if (RegSetValueExW(This->hkey,
pszPropName, 0,
dwType, lpData, cbData) != ERROR_SUCCESS)
res = E_FAIL;
if (V_VT(pVar) & VT_ARRAY)
res = SafeArrayUnaccessData(V_UNION(pVar, parray));
return res;
}
static IPropertyBagVtbl IPropertyBag_Vtbl =
{
DEVENUM_IPropertyBag_QueryInterface,
DEVENUM_IPropertyBag_AddRef,
DEVENUM_IPropertyBag_Release,
DEVENUM_IPropertyBag_Read,
DEVENUM_IPropertyBag_Write
};
static HRESULT DEVENUM_IPropertyBag_Construct(HANDLE hkey, IPropertyBag **ppBag)
{
RegPropBagImpl * rpb = CoTaskMemAlloc(sizeof(RegPropBagImpl));
if (!rpb)
return E_OUTOFMEMORY;
rpb->lpVtbl = &IPropertyBag_Vtbl;
rpb->ref = 1;
rpb->hkey = hkey;
*ppBag = (IPropertyBag*)rpb;
DEVENUM_LockModule();
return S_OK;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_QueryInterface(
LPMONIKER iface,
REFIID riid,
LPVOID *ppvObj)
{
MediaCatMoniker *This = (MediaCatMoniker *)iface;
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (This == NULL || ppvObj == NULL) return E_POINTER;
*ppvObj = NULL;
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IPersist) ||
IsEqualGUID(riid, &IID_IPersistStream) ||
IsEqualGUID(riid, &IID_IMoniker))
{
*ppvObj = (LPVOID)iface;
DEVENUM_IMediaCatMoniker_AddRef(iface);
return S_OK;
}
FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/**********************************************************************
* DEVENUM_IMediaCatMoniker_AddRef (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IMediaCatMoniker_AddRef(LPMONIKER iface)
{
MediaCatMoniker *This = (MediaCatMoniker *)iface;
TRACE("\n");
return InterlockedIncrement(&This->ref);
}
/**********************************************************************
* DEVENUM_IMediaCatMoniker_Release (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IMediaCatMoniker_Release(LPMONIKER iface)
{
MediaCatMoniker *This = (MediaCatMoniker *)iface;
ULONG ref;
TRACE("\n");
ref = InterlockedDecrement(&This->ref);
if (ref == 0) {
RegCloseKey(This->hkey);
CoTaskMemFree(This);
DEVENUM_UnlockModule();
}
return ref;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_GetClassID(
LPMONIKER iface,
CLSID* pClassID)
{
MediaCatMoniker *This = (MediaCatMoniker *)iface;
FIXME("(%p)->(%p)\n", This, pClassID);
if (pClassID == NULL)
return E_POINTER;
return E_NOTIMPL;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_IsDirty(LPMONIKER iface)
{
FIXME("()\n");
return S_FALSE;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Load(LPMONIKER iface, IStream* pStm)
{
FIXME("(%p)\n", pStm);
return E_NOTIMPL;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Save(LPMONIKER iface, IStream* pStm, BOOL fClearDirty)
{
FIXME("(%p, %s)\n", pStm, fClearDirty ? "true" : "false");
return STG_E_CANTSAVE;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_GetSizeMax(
LPMONIKER iface,
ULARGE_INTEGER* pcbSize)
{
FIXME("(%p)\n", pcbSize);
ZeroMemory(pcbSize, sizeof(*pcbSize));
return S_OK;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_BindToObject(
LPMONIKER iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
REFIID riidResult,
void** ppvResult)
{
IUnknown * pObj = NULL;
IPropertyBag * pProp = NULL;
CLSID clsID;
VARIANT var;
HRESULT res = E_FAIL;
MediaCatMoniker *This = (MediaCatMoniker *)iface;
VariantClear(&var);
TRACE("(%p)->(%p, %p, %s, %p)\n", This, pbc, pmkToLeft, debugstr_guid(riidResult), ppvResult);
*ppvResult = NULL;
if(pmkToLeft==NULL)
{
/* first activation of this class */
LPVOID pvptr;
res=IMoniker_BindToStorage(iface, NULL, NULL, &IID_IPropertyBag, &pvptr);
pProp = (IPropertyBag*)pvptr;
if (SUCCEEDED(res))
{
V_VT(&var) = VT_LPWSTR;
res = IPropertyBag_Read(pProp, clsid_keyname, &var, NULL);
}
if (SUCCEEDED(res))
{
res = CLSIDFromString(V_UNION(&var,bstrVal), &clsID);
CoTaskMemFree(V_UNION(&var, bstrVal));
}
if (SUCCEEDED(res))
{
res=CoCreateInstance(&clsID,NULL,CLSCTX_ALL,&IID_IUnknown,&pvptr);
pObj = (IUnknown*)pvptr;
}
}
if (pObj!=NULL)
{
/* get the requested interface from the loaded class */
res = S_OK;
if (pProp) {
HRESULT res2;
LPVOID ppv = NULL;
res2 = IUnknown_QueryInterface(pObj, &IID_IPersistPropertyBag, &ppv);
if (SUCCEEDED(res2)) {
res = IPersistPropertyBag_Load((IPersistPropertyBag *) ppv, pProp, NULL);
IPersistPropertyBag_Release((IPersistPropertyBag *) ppv);
}
}
if (SUCCEEDED(res))
res= IUnknown_QueryInterface(pObj,riidResult,ppvResult);
IUnknown_Release(pObj);
}
if (pProp)
{
IPropertyBag_Release(pProp);
}
TRACE("<- 0x%lx\n", res);
return res;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_BindToStorage(
LPMONIKER iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
REFIID riid,
void** ppvObj)
{
MediaCatMoniker *This = (MediaCatMoniker *)iface;
TRACE("(%p)->(%p, %p, %s, %p)\n", This, pbc, pmkToLeft, debugstr_guid(riid), ppvObj);
*ppvObj = NULL;
if (pbc || pmkToLeft)
return MK_E_NOSTORAGE;
if (IsEqualGUID(riid, &IID_IPropertyBag))
{
HANDLE hkey;
DuplicateHandle(GetCurrentProcess(), This->hkey, GetCurrentProcess(), &hkey, 0, 0, DUPLICATE_SAME_ACCESS);
return DEVENUM_IPropertyBag_Construct(hkey, (IPropertyBag**)ppvObj);
}
return MK_E_NOSTORAGE;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Reduce(
LPMONIKER iface,
IBindCtx* pbc,
DWORD dwReduceHowFar,
IMoniker** ppmkToLeft,
IMoniker** ppmkReduced)
{
TRACE("(%p, %ld, %p, %p)\n", pbc, dwReduceHowFar, ppmkToLeft, ppmkReduced);
if (ppmkToLeft)
*ppmkToLeft = NULL;
*ppmkReduced = iface;
return MK_S_REDUCED_TO_SELF;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_ComposeWith(
LPMONIKER iface,
IMoniker* pmkRight,
BOOL fOnlyIfNotGeneric,
IMoniker** ppmkComposite)
{
FIXME("(%p, %s, %p): stub\n", pmkRight, fOnlyIfNotGeneric ? "true" : "false", ppmkComposite);
/* FIXME: use CreateGenericComposite? */
*ppmkComposite = NULL;
return E_NOTIMPL;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Enum(
LPMONIKER iface,
BOOL fForward,
IEnumMoniker** ppenumMoniker)
{
FIXME("(%s, %p): stub\n", fForward ? "true" : "false", ppenumMoniker);
*ppenumMoniker = NULL;
return S_OK;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_IsEqual(
LPMONIKER iface,
IMoniker* pmkOtherMoniker)
{
FIXME("(%p)\n", pmkOtherMoniker);
return E_NOTIMPL;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Hash(
LPMONIKER iface,
DWORD* pdwHash)
{
TRACE("(%p)\n", pdwHash);
*pdwHash = 0;
return S_OK;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_IsRunning(
LPMONIKER iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
IMoniker* pmkNewlyRunning)
{
FIXME("(%p, %p, %p)\n", pbc, pmkToLeft, pmkNewlyRunning);
return S_FALSE;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_GetTimeOfLastChange(
LPMONIKER iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
FILETIME* pFileTime)
{
TRACE("(%p, %p, %p)\n", pbc, pmkToLeft, pFileTime);
pFileTime->dwLowDateTime = 0xFFFFFFFF;
pFileTime->dwHighDateTime = 0x7FFFFFFF;
return MK_E_UNAVAILABLE;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_Inverse(
LPMONIKER iface,
IMoniker** ppmk)
{
TRACE("(%p)\n", ppmk);
*ppmk = NULL;
return MK_E_NOINVERSE;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_CommonPrefixWith(
LPMONIKER iface,
IMoniker* pmkOtherMoniker,
IMoniker** ppmkPrefix)
{
TRACE("(%p, %p)\n", pmkOtherMoniker, ppmkPrefix);
*ppmkPrefix = NULL;
return MK_E_NOPREFIX;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_RelativePathTo(
LPMONIKER iface,
IMoniker* pmkOther,
IMoniker** ppmkRelPath)
{
TRACE("(%p, %p)\n", pmkOther, ppmkRelPath);
*ppmkRelPath = pmkOther;
return MK_S_HIM;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_GetDisplayName(
LPMONIKER iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
LPOLESTR* ppszDisplayName)
{
MediaCatMoniker *This = (MediaCatMoniker *)iface;
WCHAR wszBuffer[MAX_PATH];
static const WCHAR wszFriendlyName[] = {'F','r','i','e','n','d','l','y','N','a','m','e',0};
LONG received = sizeof(wszFriendlyName);
TRACE("(%p, %p, %p)\n", pbc, pmkToLeft, ppszDisplayName);
*ppszDisplayName = NULL;
/* FIXME: should this be the weird stuff we have to parse in IParseDisplayName? */
if (RegQueryValueW(This->hkey, wszFriendlyName, wszBuffer, &received) == ERROR_SUCCESS)
{
*ppszDisplayName = CoTaskMemAlloc(received);
strcpyW(*ppszDisplayName, wszBuffer);
return S_OK;
}
return E_FAIL;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_ParseDisplayName(
LPMONIKER iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
LPOLESTR pszDisplayName,
ULONG* pchEaten,
IMoniker** ppmkOut)
{
FIXME("(%p, %p, %s, %p, %p)\n", pbc, pmkToLeft, debugstr_w(pszDisplayName), pchEaten, ppmkOut);
*pchEaten = 0;
*ppmkOut = NULL;
return MK_E_SYNTAX;
}
static HRESULT WINAPI DEVENUM_IMediaCatMoniker_IsSystemMoniker(
LPMONIKER iface,
DWORD* pdwMksys)
{
TRACE("(%p)\n", pdwMksys);
return S_FALSE;
}
static IMonikerVtbl IMoniker_Vtbl =
{
DEVENUM_IMediaCatMoniker_QueryInterface,
DEVENUM_IMediaCatMoniker_AddRef,
DEVENUM_IMediaCatMoniker_Release,
DEVENUM_IMediaCatMoniker_GetClassID,
DEVENUM_IMediaCatMoniker_IsDirty,
DEVENUM_IMediaCatMoniker_Load,
DEVENUM_IMediaCatMoniker_Save,
DEVENUM_IMediaCatMoniker_GetSizeMax,
DEVENUM_IMediaCatMoniker_BindToObject,
DEVENUM_IMediaCatMoniker_BindToStorage,
DEVENUM_IMediaCatMoniker_Reduce,
DEVENUM_IMediaCatMoniker_ComposeWith,
DEVENUM_IMediaCatMoniker_Enum,
DEVENUM_IMediaCatMoniker_IsEqual,
DEVENUM_IMediaCatMoniker_Hash,
DEVENUM_IMediaCatMoniker_IsRunning,
DEVENUM_IMediaCatMoniker_GetTimeOfLastChange,
DEVENUM_IMediaCatMoniker_Inverse,
DEVENUM_IMediaCatMoniker_CommonPrefixWith,
DEVENUM_IMediaCatMoniker_RelativePathTo,
DEVENUM_IMediaCatMoniker_GetDisplayName,
DEVENUM_IMediaCatMoniker_ParseDisplayName,
DEVENUM_IMediaCatMoniker_IsSystemMoniker
};
MediaCatMoniker * DEVENUM_IMediaCatMoniker_Construct()
{
MediaCatMoniker * pMoniker = NULL;
pMoniker = CoTaskMemAlloc(sizeof(MediaCatMoniker));
if (!pMoniker)
return NULL;
pMoniker->lpVtbl = &IMoniker_Vtbl;
pMoniker->ref = 0;
pMoniker->hkey = NULL;
DEVENUM_IMediaCatMoniker_AddRef((LPMONIKER)pMoniker);
DEVENUM_LockModule();
return pMoniker;
}
/**********************************************************************
* DEVENUM_IEnumMoniker_QueryInterface (also IUnknown)
*/
static HRESULT WINAPI DEVENUM_IEnumMoniker_QueryInterface(
LPENUMMONIKER iface,
REFIID riid,
LPVOID *ppvObj)
{
EnumMonikerImpl *This = (EnumMonikerImpl *)iface;
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (This == NULL || ppvObj == NULL) return E_POINTER;
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IEnumMoniker))
{
*ppvObj = (LPVOID)iface;
DEVENUM_IEnumMoniker_AddRef(iface);
return S_OK;
}
FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/**********************************************************************
* DEVENUM_IEnumMoniker_AddRef (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IEnumMoniker_AddRef(LPENUMMONIKER iface)
{
EnumMonikerImpl *This = (EnumMonikerImpl *)iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p)->() AddRef from %ld\n", iface, ref - 1);
return ref;
}
/**********************************************************************
* DEVENUM_IEnumMoniker_Release (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IEnumMoniker_Release(LPENUMMONIKER iface)
{
EnumMonikerImpl *This = (EnumMonikerImpl *)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p)->() Release from %ld\n", iface, ref + 1);
if (!ref)
{
RegCloseKey(This->hkey);
CoTaskMemFree(This);
DEVENUM_UnlockModule();
return 0;
}
return ref;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Next(LPENUMMONIKER iface, ULONG celt, IMoniker ** rgelt, ULONG * pceltFetched)
{
WCHAR buffer[MAX_PATH + 1];
LONG res;
ULONG fetched = 0;
MediaCatMoniker * pMoniker;
EnumMonikerImpl *This = (EnumMonikerImpl *)iface;
TRACE("(%p)->(%ld, %p, %p)\n", iface, celt, rgelt, pceltFetched);
while (fetched < celt)
{
res = RegEnumKeyW(This->hkey, This->index, buffer, sizeof(buffer) / sizeof(WCHAR));
if (res != ERROR_SUCCESS)
{
break;
}
pMoniker = DEVENUM_IMediaCatMoniker_Construct();
if (!pMoniker)
return E_OUTOFMEMORY;
if (RegOpenKeyW(This->hkey, buffer, &pMoniker->hkey) != ERROR_SUCCESS)
{
DEVENUM_IMediaCatMoniker_Release((LPMONIKER)pMoniker);
break;
}
rgelt[fetched] = (LPMONIKER)pMoniker;
fetched++;
}
This->index += fetched;
TRACE("-- fetched %ld\n", fetched);
if (pceltFetched)
*pceltFetched = fetched;
if (fetched != celt)
return S_FALSE;
else
return S_OK;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Skip(LPENUMMONIKER iface, ULONG celt)
{
EnumMonikerImpl *This = (EnumMonikerImpl *)iface;
TRACE("(%p)->(%ld)\n", iface, celt);
This->index += celt;
return S_OK;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Reset(LPENUMMONIKER iface)
{
EnumMonikerImpl *This = (EnumMonikerImpl *)iface;
TRACE("(%p)->()\n", iface);
This->index = 0;
return S_OK;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Clone(LPENUMMONIKER iface, IEnumMoniker ** ppenum)
{
FIXME("(%p)->(%p): stub\n", iface, ppenum);
return E_NOTIMPL;
}
/**********************************************************************
* IEnumMoniker_Vtbl
*/
static IEnumMonikerVtbl IEnumMoniker_Vtbl =
{
DEVENUM_IEnumMoniker_QueryInterface,
DEVENUM_IEnumMoniker_AddRef,
DEVENUM_IEnumMoniker_Release,
DEVENUM_IEnumMoniker_Next,
DEVENUM_IEnumMoniker_Skip,
DEVENUM_IEnumMoniker_Reset,
DEVENUM_IEnumMoniker_Clone
};
HRESULT DEVENUM_IEnumMoniker_Construct(HKEY hkey, IEnumMoniker ** ppEnumMoniker)
{
EnumMonikerImpl * pEnumMoniker = CoTaskMemAlloc(sizeof(EnumMonikerImpl));
if (!pEnumMoniker)
return E_OUTOFMEMORY;
pEnumMoniker->lpVtbl = &IEnumMoniker_Vtbl;
pEnumMoniker->ref = 1;
pEnumMoniker->index = 0;
pEnumMoniker->hkey = hkey;
*ppEnumMoniker = (IEnumMoniker *)pEnumMoniker;
DEVENUM_LockModule();
return S_OK;
}
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