Merge develop changes prior to upcoming WDK release (May 2024)

1 files changed, 0 insertions, 906 deletions

diff --git a/wpd/WpdHelloWorldDriver/WpdCapabilities.cpp b/wpd/WpdHelloWorldDriver/WpdCapabilities.cpp
deleted file mode 100644
index 9dd3faed..00000000
--- a/wpd/WpdHelloWorldDriver/WpdCapabilities.cpp
+++ /dev/null
@@ -1,906 +0,0 @@
-#include "stdafx.h"
-#include "WpdCapabilities.tmh"
-
-const PROPERTYKEY g_SupportedCommands[] =
-{
-    // WPD_CATEGORY_OBJECT_ENUMERATION
-    WPD_COMMAND_OBJECT_ENUMERATION_START_FIND,
-    WPD_COMMAND_OBJECT_ENUMERATION_FIND_NEXT,
-    WPD_COMMAND_OBJECT_ENUMERATION_END_FIND,
-
-    // WPD_CATEGORY_OBJECT_PROPERTIES
-    WPD_COMMAND_OBJECT_PROPERTIES_GET_SUPPORTED,
-    WPD_COMMAND_OBJECT_PROPERTIES_GET,
-    WPD_COMMAND_OBJECT_PROPERTIES_GET_ALL,
-    WPD_COMMAND_OBJECT_PROPERTIES_SET,
-    WPD_COMMAND_OBJECT_PROPERTIES_GET_ATTRIBUTES,
-    WPD_COMMAND_OBJECT_PROPERTIES_DELETE,
-
-    // WPD_CATEGORY_OBJECT_RESOURCES
-    WPD_COMMAND_OBJECT_RESOURCES_GET_SUPPORTED,
-    WPD_COMMAND_OBJECT_RESOURCES_OPEN,
-    WPD_COMMAND_OBJECT_RESOURCES_READ,
-    WPD_COMMAND_OBJECT_RESOURCES_CLOSE,
-    WPD_COMMAND_OBJECT_RESOURCES_GET_ATTRIBUTES,
-
-    // WPD_CATEGORY_CAPABILITIES
-    WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_COMMANDS,
-    WPD_COMMAND_CAPABILITIES_GET_COMMAND_OPTIONS,
-    WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FUNCTIONAL_CATEGORIES,
-    WPD_COMMAND_CAPABILITIES_GET_FUNCTIONAL_OBJECTS,
-    WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_CONTENT_TYPES,
-    WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FORMATS,
-    WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FORMAT_PROPERTIES,
-    WPD_COMMAND_CAPABILITIES_GET_FIXED_PROPERTY_ATTRIBUTES,
-};
-
-const GUID g_SupportedFunctionalCategories[] =
-{
-    WPD_FUNCTIONAL_CATEGORY_DEVICE,
-    WPD_FUNCTIONAL_CATEGORY_STORAGE,
-};
-
-WpdCapabilities::WpdCapabilities()
-{
-
-}
-
-WpdCapabilities::~WpdCapabilities()
-{
-
-}
-
-HRESULT WpdCapabilities::DispatchWpdMessage(_In_ REFPROPERTYKEY          Command,
-                                            _In_ IPortableDeviceValues*  pParams,
-                                            _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr = S_OK;
-
-    if (Command.fmtid != WPD_CATEGORY_CAPABILITIES)
-    {
-        hr = E_INVALIDARG;
-        CHECK_HR(hr, "This object does not support this command category %ws",CComBSTR(Command.fmtid));
-    }
-
-    if (hr == S_OK)
-    {
-        if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_COMMANDS))
-        {
-            hr = OnGetSupportedCommands(pParams, pResults);
-            CHECK_HR(hr, "Failed to get supported commands");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_COMMAND_OPTIONS))
-        {
-            hr = OnGetCommandOptions(pParams, pResults);
-            CHECK_HR(hr, "Failed to get command options");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FUNCTIONAL_CATEGORIES))
-        {
-            hr = OnGetFunctionalCategories(pParams, pResults);
-            CHECK_HR(hr, "Failed to get functional categories");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_FUNCTIONAL_OBJECTS))
-        {
-            hr = OnGetFunctionalObjects(pParams, pResults);
-            CHECK_HR(hr, "Failed to get functional objects");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_CONTENT_TYPES))
-        {
-            hr = OnGetSupportedContentTypes(pParams, pResults);
-            CHECK_HR(hr, "Failed to get supported content types");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FORMATS))
-        {
-            hr = OnGetSupportedFormats(pParams, pResults);
-            CHECK_HR(hr, "Failed to get supported formats");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FORMAT_PROPERTIES))
-        {
-            hr = OnGetSupportedFormatProperties(pParams, pResults);
-            CHECK_HR(hr, "Failed to get supported format properties");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_FIXED_PROPERTY_ATTRIBUTES))
-        {
-            hr = OnGetFixedPropertyAttributes(pParams, pResults);
-            CHECK_HR(hr, "Failed to get fixed property attributes");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_EVENTS))
-        {
-            hr = OnGetSupportedEvents(pParams, pResults);
-            CHECK_HR(hr, "Failed to get supported events");
-        }
-        else if (IsEqualPropertyKey(Command, WPD_COMMAND_CAPABILITIES_GET_EVENT_OPTIONS))
-        {
-            hr = OnGetEventOptions(pParams, pResults);
-            CHECK_HR(hr, "Failed to get event options");
-        }
-        else
-        {
-            hr = E_NOTIMPL;
-            CHECK_HR(hr, "This object does not support this command id %d", Command.pid);
-        }
-    }
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_COMMANDS
- *  command.
- *
- *  The parameters sent to us are:
- *  - none.
- *
- *  The driver should:
- *  - Return all commands supported by this driver as an
- *    IPortableDeviceKeyCollection in WPD_PROPERTY_CAPABILITIES_SUPPORTED_COMMANDS.
- *    This includes custom commands, if any.
- *
- *    Note that certain commands require a "command target" to function correctly.
- *    (e.g. delete object command) It is understood that not all objects are necessarily
- *    valid targets (e.g. you cannot delete the device object).
- */
-HRESULT WpdCapabilities::OnGetSupportedCommands(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr = S_OK;
-    CComPtr<IPortableDeviceKeyCollection> pCommands;
-    UNREFERENCED_PARAMETER(pParams);
-
-    // CoCreate a collection to store the supported commands.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDeviceKeyCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDeviceKeyCollection,
-                              (VOID**) &pCommands);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDeviceKeyCollection");
-    }
-
-    // Add the supported commands to the collection.
-    if (hr == S_OK)
-    {
-        for (DWORD dwIndex = 0; dwIndex < ARRAYSIZE(g_SupportedCommands); dwIndex++)
-        {
-            hr = pCommands->Add(g_SupportedCommands[dwIndex]);
-            CHECK_HR(hr, "Failed to add supported command at index %d", dwIndex);
-            if (FAILED(hr))
-            {
-                break;
-            }
-        }
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_SUPPORTED_COMMANDS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_SUPPORTED_COMMANDS, pCommands);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_SUPPORTED_COMMANDS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_COMMAND_OPTIONS
- *  command.
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_COMMAND: a collection of property keys containing a single value,
- *      which identifies the specific command options are requested to return.
- *
- *  The driver should:
- *  - Return an IPortableDeviceValues in WPD_PROPERTY_CAPABILITIES_COMMAND_OPTIONS, containing
- *      the relevant options.  If no options are available for this command, the driver should
- *      return an IPortableDeviceValues with no elements in it.
- */
-HRESULT WpdCapabilities::OnGetCommandOptions(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT     hr      = S_OK;
-    PROPERTYKEY Command = WPD_PROPERTY_NULL;
-    CComPtr<IPortableDeviceValues> pOptions;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the command whose options have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetKeyValue(WPD_PROPERTY_CAPABILITIES_COMMAND, &Command);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_COMMAND");
-    }
-
-    // CoCreate a collection to store the command options.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDeviceValues,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDeviceValues,
-                              (VOID**) &pOptions);
-        CHECK_HR(hr, "Failed to CoCreateInstance CLSID_PortableDeviceValues");
-    }
-
-    // Add command options to the collection
-    if (hr == S_OK)
-    {
-        // If your driver supports command options, then they should be added here
-        // to the command options collection 'pOptions'.
-        if (IsEqualPropertyKey(WPD_COMMAND_OBJECT_RESOURCES_READ, Command))
-        {
-            // For better read performance, tell the API not to provide the input buffer parameter
-            // when issuing a WPD_COMMAND_OBJECT_RESOURCES_READ command.
-            hr = pOptions->SetBoolValue(WPD_OPTION_OBJECT_RESOURCES_NO_INPUT_BUFFER_ON_READ, TRUE);
-            CHECK_HR(hr, "Failed to set WPD_OPTION_OBJECT_RESOURCES_NO_INPUT_BUFFER_ON_READ");
-        }
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_COMMAND_OPTIONS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_COMMAND_OPTIONS, pOptions);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_COMMAND_OPTIONS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FUNCTIONAL_CATEGORIES
- *  command.
- *
- *  The parameters sent to us are:
- *  - none.
- *
- *  The driver should:
- *  - Return an IPortableDevicePropVariantCollection (of type VT_CLSID) in
- *      WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORIES, containing
- *      the supported functional categories for this device.
- */
-HRESULT WpdCapabilities::OnGetFunctionalCategories(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr = S_OK;
-    CComPtr<IPortableDevicePropVariantCollection> pFunctionalCategories;
-
-    UNREFERENCED_PARAMETER(pParams);
-
-    // CoCreate a collection to store the supported functional categories.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDevicePropVariantCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDevicePropVariantCollection,
-                              (VOID**) &pFunctionalCategories);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDevicePropVariantCollection");
-    }
-
-    // Add the supported functional categories to the collection.
-    if (hr == S_OK)
-    {
-        for (DWORD dwIndex = 0; dwIndex < ARRAYSIZE(g_SupportedFunctionalCategories); dwIndex++)
-        {
-            PROPVARIANT pv = {0};
-            PropVariantInit(&pv);
-            // Don't call PropVariantClear, since we did not allocate the memory for these GUIDs
-
-            pv.vt    = VT_CLSID;
-            pv.puuid = (GUID*) &g_SupportedFunctionalCategories[dwIndex];
-
-            hr = pFunctionalCategories->Add(&pv);
-            CHECK_HR(hr, "Failed to add supported functional category at index %d", dwIndex);
-            if (FAILED(hr))
-            {
-                break;
-            }
-        }
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORIES value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORIES, pFunctionalCategories);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORIES");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_FUNCTIONAL_OBJECTS
- *  command.  It is sent when the caller is interesting in finding the object IDs for all
- *  functional objects belonging to the specified functional category.
- *  Note: the number of functional objects is expected to be very small (less than 8 for the
- *  whole device).
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORY - a GUID value containing the category
- *    the caller is looking for.  If the value is WPD_FUNCTIONAL_CATEGORY_ALL, then the driver
- *    must return all functional objects, no matter which category they belong to.
- *
- *  The driver should:
- *  - Return an IPortableDevicePropVariantCollection (of type VT_LPWSTR) in
- *      WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_OBJECTS, containing
- *      the ids of the functional objects who belong to the specified functional category.
- *      If there are no objects in the specified category, the driver should return an
- *      empty collection.
- */
-HRESULT WpdCapabilities::OnGetFunctionalObjects(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr                     = S_OK;
-    GUID    guidFunctionalCategory = GUID_NULL;
-    CComPtr<IPortableDevicePropVariantCollection> pFunctionalObjects;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the functional category whose functional object identifiers have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetGuidValue(WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORY, &guidFunctionalCategory);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORY");
-    }
-
-    // CoCreate a collection to store the supported functional object identifiers.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDevicePropVariantCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDevicePropVariantCollection,
-                              (VOID**) &pFunctionalObjects);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDevicePropVariantCollection");
-    }
-
-    // Add the supported functional object identifiers for the specified functional
-    // category to the collection.
-    if (hr == S_OK)
-    {
-        PROPVARIANT pv = {0};
-        PropVariantInit(&pv);
-        // Don't call PropVariantClear, since we did not allocate the memory for these object identifiers
-
-        // Add WPD_DEVICE_OBJECT_ID to the functional object identifiers collection
-        if (hr == S_OK)
-        {
-            if ((guidFunctionalCategory  == WPD_FUNCTIONAL_CATEGORY_DEVICE) ||
-                (guidFunctionalCategory  == WPD_FUNCTIONAL_CATEGORY_ALL))
-            {
-                pv.vt       = VT_LPWSTR;
-                pv.pwszVal  = WPD_DEVICE_OBJECT_ID;
-                hr = pFunctionalObjects->Add(&pv);
-                CHECK_HR(hr, "Failed to add device object ID");
-            }
-        }
-
-        // Add STORAGE_OBJECT_ID to the functional object identifiers collection
-        if (hr == S_OK)
-        {
-            if ((guidFunctionalCategory  == WPD_FUNCTIONAL_CATEGORY_STORAGE) ||
-                (guidFunctionalCategory  == WPD_FUNCTIONAL_CATEGORY_ALL))
-            {
-                pv.vt       = VT_LPWSTR;
-                pv.pwszVal  = STORAGE_OBJECT_ID;
-                hr = pFunctionalObjects->Add(&pv);
-                CHECK_HR(hr, "Failed to add storage object ID");
-            }
-        }
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_OBJECTS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_OBJECTS, pFunctionalObjects);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_OBJECTS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_CONTENT_TYPES
- *  command.  This message is sent when the client needs to know the possible content types supported
- *  by the specified functional category.
- *  If the driver has multiple functional objects that may support different content types,
- *  the driver should simply merge them together and report all possible types in one list here.
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORY - a GUID value containing the functional category
- *    whose content types the caller is interested in.  If the value is WPD_FUNCTIONAL_CATEGORY_ALL, then the driver
- *    must return a list of all content types supported by the device.
- *
- *  The driver should:
- *  - Return an IPortableDevicePropVariantCollection (of type VT_CLSID) in
- *      WPD_PROPERTY_CAPABILITIES_CONTENT_TYPES, containing
- *      the content types supported by the specified functional category.
- *      If there are no objects in the specified category, the driver should return an
- *      empty collection.
- */
-HRESULT WpdCapabilities::OnGetSupportedContentTypes(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr                     = S_OK;
-    GUID    guidFunctionalCategory = GUID_NULL;
-    CComPtr<IPortableDevicePropVariantCollection> pContentTypes;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the functional category whose supported content types have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetGuidValue(WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORY, &guidFunctionalCategory);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_FUNCTIONAL_CATEGORY");
-    }
-
-    // CoCreate a collection to store the supported content types.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDevicePropVariantCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDevicePropVariantCollection,
-                              (VOID**) &pContentTypes);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDevicePropVariantCollection");
-    }
-
-    // Add the supported content types for the specified functional
-    // category to the collection.
-    if (hr == S_OK)
-    {
-        PROPVARIANT pv = {0};
-        PropVariantInit(&pv);
-        // Don't call PropVariantClear, since we did not allocate the memory for these GUIDs
-
-        // Add supported content types for known functional categories
-        if (guidFunctionalCategory  == WPD_FUNCTIONAL_CATEGORY_STORAGE)
-        {
-            // Add WPD_CONTENT_TYPE_DOCUMENT to the supported content type collection
-            pv.vt    = VT_CLSID;
-            pv.puuid = (CLSID*)&WPD_CONTENT_TYPE_DOCUMENT;
-            hr = pContentTypes->Add(&pv);
-            CHECK_HR(hr, "Failed to add WPD_CONTENT_TYPE_DOCUMENT");
-
-            if (hr == S_OK)
-            {
-                // Add WPD_CONTENT_TYPE_FOLDER to the supported content type collection
-                pv.vt    = VT_CLSID;
-                pv.puuid = (CLSID*)&WPD_CONTENT_TYPE_FOLDER;
-                hr = pContentTypes->Add(&pv);
-                CHECK_HR(hr, "Failed to add WPD_CONTENT_TYPE_FOLDER");
-            }
-        }
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_CONTENT_TYPES value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_CONTENT_TYPES, pContentTypes);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_CONTENT_TYPES");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FORMATS
- *  command.  This message is sent when the client needs to know the possible formats supported
- *  by the specified content type (e.g. for image objects, the driver may choose to support JPEG and BMP files).
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_CONTENT_TYPE - a GUID value containing the content type
- *    whose formats the caller is interested in.  If the value is WPD_CONTENT_TYPE_ALL, then the driver
- *    must return a list of all formats supported by the device.
- *
- *  The driver should:
- *  - Return an IPortableDevicePropVariantCollection (of type VT_CLSID) in
- *      WPD_PROPERTY_CAPABILITIES_FORMATS, indicating the formats supported by the
- *      specified content type.
- *      If there are no formats supported by the specified content type, the driver should return an
- *      empty collection.
- */
-HRESULT WpdCapabilities::OnGetSupportedFormats(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr              = S_OK;
-    GUID    guidContentType = GUID_NULL;
-    CComPtr<IPortableDevicePropVariantCollection> pFormats;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the content type whose supported formats have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetGuidValue(WPD_PROPERTY_CAPABILITIES_CONTENT_TYPE, &guidContentType);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_CONTENT_TYPE");
-    }
-
-    // CoCreate a collection to store the supported formats.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDevicePropVariantCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDevicePropVariantCollection,
-                              (VOID**) &pFormats);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDevicePropVariantCollection");
-    }
-
-    // Add the supported formats for the specified content type to the collection.
-    if (hr == S_OK)
-    {
-        PROPVARIANT pv = {0};
-        PropVariantInit(&pv);
-        // Don't call PropVariantClear, since we did not allocate the memory for these GUIDs
-
-        if ((guidContentType   == WPD_CONTENT_TYPE_DOCUMENT) ||
-            ((guidContentType  == WPD_CONTENT_TYPE_ALL)))
-        {
-            // Add WPD_OBJECT_FORMAT_TEXT to the supported formats collection
-            pv.vt    = VT_CLSID;
-            pv.puuid = (CLSID*)&WPD_OBJECT_FORMAT_TEXT;
-            hr = pFormats->Add(&pv);
-            CHECK_HR(hr, "Failed to add WPD_OBJECT_FORMAT_TEXT");
-        }
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_FORMATS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_FORMATS, pFormats);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_FORMATS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_FORMAT_PROPERTIES
- *  command.  This message is sent when the client needs to know the typical properties for objects of
- *  a given format.
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_FORMAT - a GUID value specifying the format the caller is interested in.
- *
- *  The driver should:
- *  - Return an IPortableDeviceKeyCollection in WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS,
- *      containing the property keys.
- */
-HRESULT WpdCapabilities::OnGetSupportedFormatProperties(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr               = S_OK;
-    GUID    guidObjectFormat = GUID_NULL;
-    CComPtr<IPortableDeviceKeyCollection> pKeys;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the object format whose supported properties have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetGuidValue(WPD_PROPERTY_CAPABILITIES_FORMAT, &guidObjectFormat);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_FORMAT");
-    }
-
-    // CoCreate a collection to store the supported properties.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDeviceKeyCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDeviceKeyCollection,
-                              (VOID**) &pKeys);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDeviceKeyCollection");
-    }
-
-    // Add the supported properties for the specified object format to the collection.
-    if (hr == S_OK)
-    {
-        hr = AddSupportedPropertyKeys(guidObjectFormat, pKeys);
-        CHECK_HR(hr, "Failed to get supported properties for a format");
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIPortableDeviceKeyCollectionValue(WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS, pKeys);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_FIXED_PROPERTY_ATTRIBUTES
- *  command.  This message is sent when the client needs to know the property attributes that
- *  are the same for all objects of the given format.
- *
- *  Typically, a driver treats objects of a given format the same. Many properties therefore will
- *  have attributes that are identical across all objects of that format.
- *  These can be returned here. There are some attributes which may be differ per object instance,
- *  which are not returned here.
- *  See WPD_COMMAND_OBJECT_PROPERTIES_GET_ATTRIBUTES.
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_FORMAT - a GUID value specifying the format the caller is interested in.
- *  - WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS - a collection of property keys containing a single value,
- *    which is the key identifying the specific property attributes we are requested to return.
- *
- *  The driver should:
- *  - Return an IPortableDeviceValues in WPD_PROPERTY_CAPABILITIES_PROPERTY_ATTRIBUTES
- *    containing the fixed property attributes.
- */
-HRESULT WpdCapabilities::OnGetFixedPropertyAttributes(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT     hr               = S_OK;
-    GUID        guidObjectFormat = GUID_NULL;
-    PROPERTYKEY key              = WPD_PROPERTY_NULL;
-    CComPtr<IPortableDeviceValues> pAttributes;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the object format whose fixed property attributes have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetGuidValue(WPD_PROPERTY_CAPABILITIES_FORMAT, &guidObjectFormat);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_FORMAT");
-    }
-
-    // Get the property whose fixed property attributes have been requested
-    if(hr == S_OK)
-    {
-        hr = pParams->GetKeyValue(WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS, &key);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_PROPERTY_KEYS");
-    }
-
-    // CoCreate a collection to store the fixed property attributes.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDeviceValues,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDeviceValues,
-                              (VOID**) &pAttributes);
-        CHECK_HR(hr, "Failed to CoCreateInstance CLSID_PortableDeviceValues");
-    }
-
-    // Add the fixed property attributes for the specified object format and property
-    if (hr == S_OK)
-    {
-        hr = GetFixedPropertyAttributesForFormat(guidObjectFormat, key, pAttributes);
-        CHECK_HR(hr, "Failed to get fixed property attributes");
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_PROPERTY_ATTRIBUTES value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIPortableDeviceValuesValue(WPD_PROPERTY_CAPABILITIES_PROPERTY_ATTRIBUTES, pAttributes);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_PROPERTY_ATTRIBUTES");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_SUPPORTED_EVENTS
- *  command.
- *
- *  The parameters sent to us are:
- *  - none.
- *
- *  The driver should:
- *  - Return all events supported by this driver should be returned as an
- *    IPortableDeviceKeyCollection in WPD_PROPERTY_CAPABILITIES_SUPPORTED_EVENTS.
- *    That includes custom commands, if any.
- */
-HRESULT WpdCapabilities::OnGetSupportedEvents(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr = S_OK;
-    CComPtr<IPortableDevicePropVariantCollection> pEvents;
-    UNREFERENCED_PARAMETER(pParams);
-
-    // CoCreate a collection to store the supported events.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDevicePropVariantCollection,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDevicePropVariantCollection,
-                              (VOID**) &pEvents);
-        CHECK_HR(hr, "Failed to CoCreate CLSID_PortableDevicePropVariantCollection");
-    }
-
-    // Add the supported events to the collection.
-    if (hr == S_OK)
-    {
-        // If your driver supports events, then they should be added here
-        // to the supported events collection 'pEvents'.
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_SUPPORTED_EVENTS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_SUPPORTED_EVENTS, pEvents);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_SUPPORTED_EVENTS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called when we receive a WPD_COMMAND_CAPABILITIES_GET_EVENT_OPTIONS
- *  command.
- *
- *  The parameters sent to us are:
- *  - WPD_PROPERTY_CAPABILITIES_EVENT: a GUID value indicating the Event whose options should be returned.
- *
- *  The driver should:
- *  - Return an IPortableDeviceValues in WPD_PROPERTY_CAPABILITIES_EVENT_OPTIONS, containing
- *      the relevant options.
- */
-HRESULT WpdCapabilities::OnGetEventOptions(
-    _In_ IPortableDeviceValues*  pParams,
-    _In_ IPortableDeviceValues*  pResults)
-{
-    HRESULT hr    = S_OK;
-    GUID    Event = GUID_NULL;
-    CComPtr<IPortableDeviceValues> pOptions;
-
-    // First get ALL parameters for this command.  If we cannot get ALL parameters
-    // then E_INVALIDARG should be returned and no further processing should occur.
-
-    // Get the event whose options have been requested
-    if (hr == S_OK)
-    {
-        hr = pParams->GetGuidValue(WPD_PROPERTY_CAPABILITIES_EVENT, &Event);
-        CHECK_HR(hr, "Missing value for WPD_PROPERTY_CAPABILITIES_EVENT");
-    }
-
-    // CoCreate a collection to store the event options.
-    if (hr == S_OK)
-    {
-        hr = CoCreateInstance(CLSID_PortableDeviceValues,
-                              NULL,
-                              CLSCTX_INPROC_SERVER,
-                              IID_IPortableDeviceValues,
-                              (VOID**) &pOptions);
-        CHECK_HR(hr, "Failed to CoCreateInstance CLSID_PortableDeviceValues");
-    }
-
-    // Add event options to the collection
-    if (hr == S_OK)
-    {
-        // If your driver supports event options, then they should be added here
-        // to the event options collection 'pOptions'.
-    }
-
-    // Set the WPD_PROPERTY_CAPABILITIES_EVENT_OPTIONS value in the results.
-    if (hr == S_OK)
-    {
-        hr = pResults->SetIUnknownValue(WPD_PROPERTY_CAPABILITIES_EVENT_OPTIONS, pOptions);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_CAPABILITIES_EVENT_OPTIONS");
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called to populate supported PROPERTYKEYs for the
- *  specified object format.
- *
- *  The parameters sent to us are:
- *  guidObjectFormat - object format whose supported properties are being requested.
- *  pKeys - An IPortableDeviceKeyCollection to be populated with PROPERTYKEYs
- *
- *  The driver should:
- *  Add supported PROPERTYKEYs pertaining to the specified object format.
- */
-HRESULT WpdCapabilities::AddSupportedPropertyKeys(
-    _In_ REFGUID                        guidObjectFormat,
-    _In_ IPortableDeviceKeyCollection*  pKeys)
-{
-    HRESULT hr = S_OK;
-
-    if (pKeys == NULL)
-    {
-        hr = E_INVALIDARG;
-        return hr;
-    }
-
-    if (guidObjectFormat == WPD_OBJECT_FORMAT_TEXT)
-    {
-        AddCommonPropertyKeys(pKeys);
-        AddFilePropertyKeys(pKeys);
-    }
-    else if (guidObjectFormat == WPD_OBJECT_FORMAT_ALL)
-    {
-        AddCommonPropertyKeys(pKeys);
-    }
-
-    return hr;
-}
-
-/**
- *  This method is called to populate fixed property attributes
- *
- *  The parameters sent to us are:
- *  guidObjectFormat - the object format whose property attributes are being requested.
- *  Key - the property whose attributes are being requested
- *  pAttributes - an IPortableDeviceValues which will contain the resulting property attributes
- *
- *  The driver should:
- *  Read the property attributes for the specified property for the specified object format and
- *  populate pAttributes with the results.
- */
-HRESULT WpdCapabilities::GetFixedPropertyAttributesForFormat(
-    _In_ REFGUID                guidObjectFormat,
-    _In_ REFPROPERTYKEY         Key,
-    _In_ IPortableDeviceValues* pAttributes)
-{
-    HRESULT hr = S_OK;
-
-    if (pAttributes == NULL)
-    {
-        hr = E_INVALIDARG;
-        return hr;
-    }
-
-    UNREFERENCED_PARAMETER(guidObjectFormat);
-    UNREFERENCED_PARAMETER(Key);
-
-    //
-    // Since ALL of our properties have the same attributes, we are ignoring the
-    // passed in guidObjectFormat and Key parameters.  These parameters allow you to
-    // customize fixed property attributes for properties for specific formats.
-    //
-
-    if (hr == S_OK)
-    {
-        hr = pAttributes->SetBoolValue(WPD_PROPERTY_ATTRIBUTE_CAN_DELETE, FALSE);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_ATTRIBUTE_CAN_DELETE");
-    }
-
-    if (hr == S_OK)
-    {
-        hr = pAttributes->SetBoolValue(WPD_PROPERTY_ATTRIBUTE_CAN_READ, TRUE);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_ATTRIBUTE_CAN_READ");
-    }
-
-    if (hr == S_OK)
-    {
-        hr = pAttributes->SetBoolValue(WPD_PROPERTY_ATTRIBUTE_CAN_WRITE, FALSE);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_ATTRIBUTE_CAN_WRITE");
-    }
-
-    if (hr == S_OK)
-    {
-        hr = pAttributes->SetBoolValue(WPD_PROPERTY_ATTRIBUTE_FAST_PROPERTY, TRUE);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_ATTRIBUTE_FAST_PROPERTY");
-    }
-
-    if (hr == S_OK)
-    {
-        hr = pAttributes->SetUnsignedIntegerValue(WPD_PROPERTY_ATTRIBUTE_FORM, WPD_PROPERTY_ATTRIBUTE_FORM_UNSPECIFIED);
-        CHECK_HR(hr, "Failed to set WPD_PROPERTY_ATTRIBUTE_FORM");
-    }
-
-    return hr;
-}
-