/**
* This method is called when we receive a WPD_COMMAND_OBJECT_RESOURCES_CLOSE
* command.
*
* The parameters sent to us are:
* - WPD_PROPERTY_OBJECT_RESOURCES_CONTEXT: identifies the resource context associated with a
* previously opened resource.
*
* The driver should:
* - Unlock the resource if necessary, and release any system and device resources associated with this WPD object resource.
*/
HRESULT WpdObjectResources::OnClose(
_In_ IPortableDeviceValues* pParams,
_In_ IPortableDeviceValues* pResults)
{
// No results are expected to be returned
UNREFERENCED_PARAMETER(pResults);
HRESULT hr = S_OK;
LPWSTR pszContext = NULL;
ContextMap* pContextMap = NULL;
ResourceContext* pContext = NULL;
// Get the Object ID
hr = pParams->GetStringValue(WPD_PROPERTY_OBJECT_RESOURCES_CONTEXT, &pszContext);
if (FAILED(hr))
{
hr = E_INVALIDARG;
CHECK_HR(hr, "Missing value for WPD_PROPERTY_OBJECT_RESOURCES_CONTEXT");
}
// Get the context map which the driver stored in pParams for convenience
if (SUCCEEDED(hr))
{
hr = pParams->GetIUnknownValue(PRIVATE_SAMPLE_DRIVER_CLIENT_CONTEXT_MAP, (IUnknown**)&pContextMap);
CHECK_HR(hr, "Failed to get PRIVATE_SAMPLE_DRIVER_CLIENT_CONTEXT_MAP");
}
// If this was a creation request, enable the resource for the content
if (SUCCEEDED(hr))
{
// Get the context for this transfer
hr = GetClientContext(pParams, pszContext, (IUnknown**) &pContext);
CHECK_HR(hr, "Failed to get resource context");
}
if (SUCCEEDED(hr))
{
if (pContext->CreateRequest == TRUE)
{
hr = m_pFakeDevice->EnableResource(pContext->ObjectID, pContext->Key);
CHECK_HR(hr, "Failed to enable resource on object [%ws]", pContext->ObjectID);
}
}
//Free the context
SAFE_RELEASE(pContext);
if (SUCCEEDED(hr))
{
hr = DestroyResourceContext(pContextMap, pszContext);
CHECK_HR(hr, "Failed to remove resource context [%ws]", pszContext);
}
// Free the memory. CoTaskMemFree ignores NULLs so no need to check.
CoTaskMemFree(pszContext);
SAFE_RELEASE(pContextMap);
return hr;
}
/**
* This method is called when we receive a WPD_COMMAND_OBJECT_RESOURCES_REVERT
* command.
*
* The parameters sent to us are:
* - WPD_PROPERTY_OBJECT_RESOURCES_CONTEXT: identifies the resource context associated with a
* previously opened resource.
*
* The driver should:
* - Unlock and remove the resource if necessary, and release any system and device resources associated with this WPD object resource.
*/
HRESULT WpdObjectResources::OnRevert(
IPortableDeviceValues* pParams,
IPortableDeviceValues* pResults)
{
// No results are expected to be returned
UNREFERENCED_PARAMETER(pResults);
HRESULT hr = S_OK;
LPWSTR pszContext = NULL;
ContextMap* pContextMap = NULL;
// Get the Object ID
hr = pParams->GetStringValue(WPD_PROPERTY_OBJECT_RESOURCES_CONTEXT, &pszContext);
if (hr != S_OK)
{
hr = E_INVALIDARG;
CHECK_HR(hr, "Missing value for WPD_PROPERTY_OBJECT_RESOURCES_CONTEXT");
}
// Get the context map which the driver stored in pParams for convenience
if (hr == S_OK)
{
hr = pParams->GetIUnknownValue(PRIVATE_SAMPLE_DRIVER_CLIENT_CONTEXT_MAP, (IUnknown**)&pContextMap);
CHECK_HR(hr, "Failed to get PRIVATE_SAMPLE_DRIVER_CLIENT_CONTEXT_MAP");
}
//Free the context
if (hr == S_OK)
{
hr = DestroyResourceContext(pContextMap, pszContext);
CHECK_HR(hr, "Failed to remove resource context [%ws]", pszContext);
}
// Free the memory. CoTaskMemFree ignores NULLs so no need to check.
CoTaskMemFree(pszContext);
SAFE_RELEASE(pContextMap);
return hr;
}
