static HRESULT WINAPI EnumMonikerImpl_Next(LPENUMMONIKER iface, ULONG celt, IMoniker ** rgelt, ULONG * pceltFetched)
{
ULONG fetched;
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
TRACE("(%p)->(%d, %p, %p)\n", iface, celt, rgelt, pceltFetched);
for (fetched = 0; (This->index + fetched < This->nMonikerCount) && (fetched < celt); fetched++)
{
rgelt[fetched] = This->ppMoniker[This->index + fetched];
IMoniker_AddRef(rgelt[fetched]);
}
This->index += fetched;
TRACE("-- fetched %d\n", fetched);
if (pceltFetched)
*pceltFetched = fetched;
if (fetched != celt)
return S_FALSE;
else
return S_OK;
}
static ULONG WINAPI DEVENUM_IEnumMoniker_AddRef(IEnumMoniker *iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static HRESULT WINAPI EnumMonikerImpl_Reset(LPENUMMONIKER iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
TRACE("(%p)->()\n", iface);
This->index = 0;
return S_OK;
}
static HRESULT WINAPI EnumMonikerImpl_Skip(LPENUMMONIKER iface, ULONG celt)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
TRACE("(%p)->(%d)\n", iface, celt);
This->index += celt;
return S_OK;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Reset(IEnumMoniker *iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
TRACE("(%p)->()\n", iface);
This->index = 0;
return S_OK;
}
/**********************************************************************
* IEnumMoniker_AddRef (also IUnknown)
*/
static ULONG WINAPI EnumMonikerImpl_AddRef(LPENUMMONIKER iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
ULONG ref;
if (This == NULL) return E_POINTER;
ref = InterlockedIncrement(&This->ref);
TRACE("(%p)->() AddRef from %d\n", iface, ref - 1);
return ref;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Next(IEnumMoniker *iface, ULONG celt, IMoniker **rgelt,
ULONG *pceltFetched)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
WCHAR buffer[MAX_PATH + 1];
LONG res;
ULONG fetched = 0;
MediaCatMoniker * pMoniker;
TRACE("(%p)->(%d, %p, %p)\n", iface, celt, rgelt, pceltFetched);
while (fetched < celt)
{
if(This->index+fetched < This->subkey_cnt)
res = RegEnumKeyW(This->hkey, This->index+fetched, buffer, sizeof(buffer) / sizeof(WCHAR));
else if(This->special_hkey)
res = RegEnumKeyW(This->special_hkey, This->index+fetched-This->subkey_cnt, buffer, sizeof(buffer) / sizeof(WCHAR));
else
break;
if (res != ERROR_SUCCESS)
{
break;
}
pMoniker = DEVENUM_IMediaCatMoniker_Construct();
if (!pMoniker)
return E_OUTOFMEMORY;
if (RegOpenKeyW(This->index+fetched < This->subkey_cnt ? This->hkey : This->special_hkey,
buffer, &pMoniker->hkey) != ERROR_SUCCESS)
{
IMoniker_Release(&pMoniker->IMoniker_iface);
break;
}
rgelt[fetched] = &pMoniker->IMoniker_iface;
fetched++;
}
This->index += fetched;
TRACE("-- fetched %d\n", fetched);
if (pceltFetched)
*pceltFetched = fetched;
if (fetched != celt)
return S_FALSE;
else
return S_OK;
}
static ULONG WINAPI DEVENUM_IEnumMoniker_Release(IEnumMoniker *iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
if (!ref)
{
RegCloseKey(This->hkey);
CoTaskMemFree(This);
DEVENUM_UnlockModule();
return 0;
}
return ref;
}
/**********************************************************************
* IEnumMoniker_Release (also IUnknown)
*/
static ULONG WINAPI EnumMonikerImpl_Release(LPENUMMONIKER iface)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p)->() Release from %d\n", iface, ref + 1);
if (!ref)
{
ULONG i;
for (i = 0; i < This->nMonikerCount; i++)
IMoniker_Release(This->ppMoniker[i]);
CoTaskMemFree(This->ppMoniker);
This->ppMoniker = NULL;
CoTaskMemFree(This);
return 0;
}
return ref;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Skip(IEnumMoniker *iface, ULONG celt)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
DWORD special_subkeys = 0;
TRACE("(%p)->(%d)\n", iface, celt);
/* Before incrementing, check if there are any more values to run through.
Some programs use the Skip() function to get the number of devices */
if(This->special_hkey)
RegQueryInfoKeyW(This->special_hkey, NULL, NULL, NULL, &special_subkeys, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
if((This->index + celt) >= This->subkey_cnt + special_subkeys)
{
return S_FALSE;
}
This->index += celt;
return S_OK;
}
/**********************************************************************
* IEnumMoniker_QueryInterface (also IUnknown)
*/
static HRESULT WINAPI EnumMonikerImpl_QueryInterface(
LPENUMMONIKER iface,
REFIID riid,
LPVOID *ppvObj)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(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 = iface;
EnumMonikerImpl_AddRef(iface);
return S_OK;
}
*ppvObj = NULL;
FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static HRESULT WINAPI DEVENUM_IEnumMoniker_Skip(IEnumMoniker *iface, ULONG celt)
{
EnumMonikerImpl *This = impl_from_IEnumMoniker(iface);
DWORD subKeys;
TRACE("(%p)->(%d)\n", iface, celt);
/* Before incrementing, check if there are any more values to run thru.
Some programs use the Skip() function to get the amount of devices */
if(RegQueryInfoKeyW(This->hkey, NULL, NULL, NULL, &subKeys, NULL, NULL, NULL, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
{
return S_FALSE;
}
if((This->index + celt) >= subKeys)
{
return S_FALSE;
}
This->index += celt;
return S_OK;
}