static HRESULT WINAPI MMDevPropStore_GetAt(IPropertyStore *iface, DWORD prop, PROPERTYKEY *key)
{
MMDevPropStore *This = impl_from_IPropertyStore(iface);
WCHAR buffer[50];
DWORD len = sizeof(buffer)/sizeof(*buffer);
HRESULT hr;
HKEY propkey;
TRACE("(%p)->(%u,%p)\n", iface, prop, key);
if (!key)
return E_POINTER;
hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
if (FAILED(hr))
return hr;
if (RegEnumKeyExW(propkey, prop, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS
|| len <= 40)
{
WARN("GetAt %u failed\n", prop);
return E_INVALIDARG;
}
RegCloseKey(propkey);
buffer[39] = 0;
CLSIDFromString(buffer, &key->fmtid);
key->pid = atoiW(&buffer[40]);
return S_OK;
}
static HRESULT WINAPI MMDevPropStore_GetCount(IPropertyStore *iface, DWORD *nprops)
{
MMDevPropStore *This = impl_from_IPropertyStore(iface);
WCHAR buffer[50];
DWORD i = 0;
HKEY propkey;
HRESULT hr;
TRACE("(%p)->(%p)\n", iface, nprops);
if (!nprops)
return E_POINTER;
hr = MMDevPropStore_OpenPropKey(&This->parent->devguid, This->parent->flow, &propkey);
if (FAILED(hr))
return hr;
*nprops = 0;
do {
DWORD len = sizeof(buffer)/sizeof(*buffer);
if (RegEnumKeyExW(propkey, i, buffer, &len, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
break;
i++;
} while (0);
RegCloseKey(propkey);
TRACE("Returning %i\n", i);
*nprops = i;
return S_OK;
}
static HRESULT MMDevice_SetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, REFPROPVARIANT pv)
{
WCHAR buffer[80];
const GUID *id = &key->fmtid;
HRESULT hr;
HKEY regkey;
LONG ret;
hr = MMDevPropStore_OpenPropKey(devguid, flow, ®key);
if (FAILED(hr))
return hr;
wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
switch (pv->vt)
{
case VT_UI4:
{
ret = RegSetValueExW(regkey, buffer, 0, REG_DWORD, (const BYTE*)&pv->u.ulVal, sizeof(DWORD));
break;
}
case VT_BLOB:
{
ret = RegSetValueExW(regkey, buffer, 0, REG_BINARY, pv->u.blob.pBlobData, pv->u.blob.cbSize);
TRACE("Blob %p %u\n", pv->u.blob.pBlobData, pv->u.blob.cbSize);
break;
}
case VT_LPWSTR:
{
ret = RegSetValueExW(regkey, buffer, 0, REG_SZ, (const BYTE*)pv->u.pwszVal, sizeof(WCHAR)*(1+lstrlenW(pv->u.pwszVal)));
break;
}
default:
ret = 0;
FIXME("Unhandled type %u\n", pv->vt);
hr = E_INVALIDARG;
break;
}
RegCloseKey(regkey);
TRACE("Writing %s returned %u\n", debugstr_w(buffer), ret);
return hr;
}
static HRESULT MMDevice_GetPropValue(const GUID *devguid, DWORD flow, REFPROPERTYKEY key, PROPVARIANT *pv)
{
WCHAR buffer[80];
const GUID *id = &key->fmtid;
DWORD type, size;
HRESULT hr = S_OK;
HKEY regkey;
LONG ret;
hr = MMDevPropStore_OpenPropKey(devguid, flow, ®key);
if (FAILED(hr))
return hr;
wsprintfW( buffer, propkey_formatW, id->Data1, id->Data2, id->Data3,
id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7], key->pid );
ret = RegGetValueW(regkey, NULL, buffer, RRF_RT_ANY, &type, NULL, &size);
if (ret != ERROR_SUCCESS)
{
WARN("Reading %s returned %d\n", debugstr_w(buffer), ret);
RegCloseKey(regkey);
PropVariantClear(pv);
return S_OK;
}
switch (type)
{
case REG_SZ:
{
pv->vt = VT_LPWSTR;
pv->u.pwszVal = CoTaskMemAlloc(size);
if (!pv->u.pwszVal)
hr = E_OUTOFMEMORY;
else
RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_SZ, NULL, (BYTE*)pv->u.pwszVal, &size);
break;
}
case REG_DWORD:
{
pv->vt = VT_UI4;
RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_DWORD, NULL, (BYTE*)&pv->u.ulVal, &size);
break;
}
case REG_BINARY:
{
pv->vt = VT_BLOB;
pv->u.blob.cbSize = size;
pv->u.blob.pBlobData = CoTaskMemAlloc(size);
if (!pv->u.blob.pBlobData)
hr = E_OUTOFMEMORY;
else
RegGetValueW(regkey, NULL, buffer, RRF_RT_REG_BINARY, NULL, (BYTE*)pv->u.blob.pBlobData, &size);
break;
}
default:
ERR("Unknown/unhandled type: %u\n", type);
PropVariantClear(pv);
break;
}
RegCloseKey(regkey);
return hr;
}
