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path: root/wpd/WpdHelloWorldDriver/WpdBaseDriver.cpp
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Diffstat (limited to 'wpd/WpdHelloWorldDriver/WpdBaseDriver.cpp')
-rw-r--r--wpd/WpdHelloWorldDriver/WpdBaseDriver.cpp249
1 files changed, 0 insertions, 249 deletions
diff --git a/wpd/WpdHelloWorldDriver/WpdBaseDriver.cpp b/wpd/WpdHelloWorldDriver/WpdBaseDriver.cpp
deleted file mode 100644
index 6d00fc8f..00000000
--- a/wpd/WpdHelloWorldDriver/WpdBaseDriver.cpp
+++ /dev/null
@@ -1,249 +0,0 @@
-#include "stdafx.h"
-#include "WpdBaseDriver.tmh"
-
-WpdBaseDriver::WpdBaseDriver() :
- m_cRef(1)
-{
-}
-
-WpdBaseDriver::~WpdBaseDriver()
-{
-
-}
-
-ULONG __stdcall WpdBaseDriver::AddRef()
-{
- InterlockedIncrement((long*) &m_cRef);
- return m_cRef;
-}
-
-_At_(this, __drv_freesMem(Mem))
-ULONG __stdcall WpdBaseDriver::Release()
-{
- ULONG ulRefCount = m_cRef - 1;
-
- if (InterlockedDecrement((long*) &m_cRef) == 0)
- {
- delete this;
- return 0;
- }
- return ulRefCount;
-}
-
-HRESULT __stdcall WpdBaseDriver::QueryInterface(
- REFIID riid,
- void** ppv)
-{
- HRESULT hr = S_OK;
-
- if(riid == IID_IUnknown)
- {
- *ppv = static_cast<IUnknown*>(this);
- AddRef();
- }
- else
- {
- *ppv = NULL;
- hr = E_NOINTERFACE;
- }
- return hr;
-}
-
-HRESULT WpdBaseDriver::DispatchWpdMessage(_In_ IPortableDeviceValues* pParams,
- _In_ IPortableDeviceValues* pResults)
-{
- HRESULT hr = S_OK;
- GUID guidCommandCategory = {0};
- DWORD dwCommandID = 0;
- PROPERTYKEY CommandKey = WPD_PROPERTY_NULL;
-
- if (hr == S_OK)
- {
- hr = pParams->GetGuidValue(WPD_PROPERTY_COMMON_COMMAND_CATEGORY, &guidCommandCategory);
- CHECK_HR(hr, "Failed to get WPD_PROPERTY_COMMON_COMMAND_CATEGORY from input parameters");
- }
-
- if (hr == S_OK)
- {
- hr = pParams->GetUnsignedIntegerValue(WPD_PROPERTY_COMMON_COMMAND_ID, &dwCommandID);
- CHECK_HR(hr, "Failed to get WPD_PROPERTY_COMMON_COMMAND_ID from input parameters");
- }
-
- // If WPD_PROPERTY_COMMON_COMMAND_CATEGORY or WPD_PROPERTY_COMMON_COMMAND_ID could not be extracted
- // properly then we should return E_INVALIDARG to the client.
- if (FAILED(hr))
- {
- hr = E_INVALIDARG;
- CHECK_HR(hr, "Failed to get WPD_PROPERTY_COMMON_COMMAND_CATEGORY or WPD_PROPERTY_COMMON_COMMAND_ID from input parameters");
- }
-
- if (hr == S_OK)
- {
- CommandKey.fmtid = guidCommandCategory;
- CommandKey.pid = dwCommandID;
-
- if (CommandKey.fmtid == WPD_CATEGORY_OBJECT_ENUMERATION)
- {
- hr = m_ObjectEnum.DispatchWpdMessage(CommandKey, pParams, pResults);
- }
- else if (CommandKey.fmtid == WPD_CATEGORY_OBJECT_PROPERTIES)
- {
- hr = m_ObjectProperties.DispatchWpdMessage(CommandKey, pParams, pResults);
- }
- else if (CommandKey.fmtid == WPD_CATEGORY_OBJECT_RESOURCES)
- {
- hr = m_ObjectResources.DispatchWpdMessage(CommandKey, pParams, pResults);
- }
- else if (CommandKey.fmtid == WPD_CATEGORY_CAPABILITIES)
- {
- hr = m_Capabilities.DispatchWpdMessage(CommandKey, pParams, pResults);
- }
- else if (IsEqualPropertyKey(CommandKey, WPD_COMMAND_COMMON_GET_OBJECT_IDS_FROM_PERSISTENT_UNIQUE_IDS))
- {
- hr = OnGetObjectIDsFromPersistentUniqueIDs(pParams, pResults);
- }
- else
- {
- hr = E_NOTIMPL;
- CHECK_HR(hr, "Unknown command %ws.%d received",CComBSTR(CommandKey.fmtid), CommandKey.pid);
- }
- }
-
- HRESULT hrTemp = pResults->SetErrorValue(WPD_PROPERTY_COMMON_HRESULT, hr);
- CHECK_HR(hrTemp, ("Failed to set WPD_PROPERTY_COMMON_HRESULT"));
-
- // Set to a success code, to indicate that the message was received.
- // the return code for the actual command's results is stored in the
- // WPD_PROPERTY_COMMON_HRESULT property.
- hr = S_OK;
-
- return hr;
-}
-
-/**
- * This method is called to initialize the driver object.
- * This is where the driver would set up it's I/O libraries
- * and so on.
- */
-HRESULT WpdBaseDriver::Initialize()
-{
- return S_OK;
-}
-
-/**
- * This method is called to uninitialize the driver object.
- * In a real driver, this is where the driver would clean up
- * any resources held by this driver.
- */
-VOID WpdBaseDriver::Uninitialize()
-{
-}
-
-/**
- * This method is called when we receive a WPD_COMMAND_COMMON_GET_OBJECT_IDS_FROM_PERSISTENT_UNIQUE_IDS
- * command.
- *
- * The parameters sent to us are:
- * - WPD_PROPERTY_COMMON_PERSISTENT_UNIQUE_IDS: Contains an IPortableDevicePropVariantCollection of VT_LPWSTR,
- * indicating the PersistentUniqueIDs.
- *
- * The driver should:
- * - Iterate through the PersistentUniqueIDs, and convert to a currently valid object id.
- * This object ID list should be returned as an IPortableDevicePropVariantCollection of VT_LPWSTR
- * in WPD_PROPERTY_COMMON_OBJECT_IDS.
- * Order is implicit, i.e. the first element in the Persistent Unique ID list corresponds to the
- * to the first element of the ObjectID list and so on.
- *
- * For those elements where an existing ObjectID could not be found (e.g. the
- * object is no longer present on the device), the element will contain the
- * empty string (L"").
- */
-HRESULT WpdBaseDriver::OnGetObjectIDsFromPersistentUniqueIDs(
- _In_ IPortableDeviceValues* pParams,
- _In_ IPortableDeviceValues* pResults)
-{
- HRESULT hr = S_OK;
- DWORD dwCount = 0;
- CComPtr<IPortableDevicePropVariantCollection> pPersistentIDs;
- CComPtr<IPortableDevicePropVariantCollection> pObjectIDs;
-
- if((pParams == NULL) ||
- (pResults == NULL))
- {
- hr = E_POINTER;
- CHECK_HR(hr, "Cannot have NULL parameter");
- return hr;
- }
-
- // Get the list of Persistent IDs
- if (hr == S_OK)
- {
- hr = pParams->GetIPortableDevicePropVariantCollectionValue(WPD_PROPERTY_COMMON_PERSISTENT_UNIQUE_IDS, &pPersistentIDs);
- CHECK_HR(hr, "Failed to get WPD_PROPERTY_COMMON_PERSISTENT_UNIQUE_IDS");
- }
-
- // Create the collection to hold the ObjectIDs
- if (hr == S_OK)
- {
- hr = CoCreateInstance(CLSID_PortableDevicePropVariantCollection,
- NULL,
- CLSCTX_INPROC_SERVER,
- IID_IPortableDevicePropVariantCollection,
- (VOID**) &pObjectIDs);
- CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDevicePropVariantCollection");
- }
-
- // Iterate through the persistent ID list and add the equivalent object ID for each element.
- if (hr == S_OK)
- {
- hr = pPersistentIDs->GetCount(&dwCount);
- CHECK_HR(hr, "Failed to get count from persistent ID collection");
-
- if (hr == S_OK)
- {
- DWORD dwIndex = 0;
- PROPVARIANT pvPersistentID = {0};
- PROPVARIANT pvObjectID = {0};
-
- PropVariantInit(&pvPersistentID);
- PropVariantInit(&pvObjectID);
-
- for(dwIndex = 0; dwIndex < dwCount; dwIndex++)
- {
- pvObjectID.vt = VT_LPWSTR;
- hr = pPersistentIDs->GetAt(dwIndex, &pvPersistentID);
- CHECK_HR(hr, "Failed to get persistent ID at index %d", dwIndex);
-
- // Since our persistent unique identifier are identical to our object
- // identifiers, we just return it back to the caller.
- if (hr == S_OK)
- {
- pvObjectID.pwszVal = AtlAllocTaskWideString(pvPersistentID.pwszVal);
- }
-
- if (hr == S_OK)
- {
- hr = pObjectIDs->Add(&pvObjectID);
- CHECK_HR(hr, "Failed to add next Object ID");
- }
-
- PropVariantClear(&pvPersistentID);
- PropVariantClear(&pvObjectID);
-
- if(FAILED(hr))
- {
- break;
- }
- }
- }
- }
-
- if (hr == S_OK)
- {
- hr = pResults->SetIPortableDevicePropVariantCollectionValue(WPD_PROPERTY_COMMON_OBJECT_IDS, pObjectIDs);
- CHECK_HR(hr, "Failed to set WPD_PROPERTY_COMMON_OBJECT_IDS");
- }
-
- return hr;
-}
-
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-16 23:47:45 +0000