可以查找支持MTP协议手机内指定文件大小的查找器开源了

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF // ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A // PARTICULAR PURPOSE. // // Copyright (c) Microsoft Corporation. All rights reserved. #include <list> using std::list; #include "stdafx.h" #include "FileOper.h" HANDLE g_bulkPropertyOperationEvent = nullptr; bool IsProcess = false; // A helper function contained in ContentEnumeration.cpp which // will recursively enumerate all objects and return an // IPortableDevicePropVariantCollection containing the values. HRESULT CreateIPortableDevicePropVariantCollectionWithAllObjectIDs( _In_ IPortableDeviceContent* content, IPortableDevicePropVariantCollection** objectIDs); // Displays a property assumed to be in error code form. void DisplayErrorResultProperty( _In_ IPortableDeviceValues* properties, _In_ REFPROPERTYKEY key, _In_ PCWSTR keyName) { HRESULT error = S_OK; HRESULT hr = properties->GetErrorValue(key, &error); if (SUCCEEDED(hr)) { wprintf(L"%ws: HRESULT = (0x%lx)\n", keyName, error); } else { wprintf(L"%ws: <Not Found>\n", keyName); } } // Displays a property assumed to be in string form. void DisplayStringProperty( _In_ IPortableDeviceValues* properties, _In_ REFPROPERTYKEY key, _In_ PCWSTR keyName) { PWSTR value = nullptr; HRESULT hr = properties->GetStringValue(key, &value); if (SUCCEEDED(hr)) { // Get the length of the string value so we // can output <empty string value> if one // is encountered. if (wcsnlen(value, MAX_PATH) > 0) { wprintf(L"%ws: %ws\n", keyName, value); } else { wprintf(L"%ws: <empty string value>\n", keyName); } } else { wprintf(L"%ws: <Not Found>\n", keyName); } // Free the allocated string returned from the // GetStringValue method CoTaskMemFree(value); value = nullptr; } // Displays a property assumed to be in GUID form. void DisplayGuidProperty( _In_ IPortableDeviceValues* properties, _In_ REFPROPERTYKEY key, _In_ PCWSTR keyName) { GUID value = GUID_NULL; HRESULT hr = properties->GetGuidValue(key, &value); if (SUCCEEDED(hr)) { wprintf(L"%ws: %ws\n", keyName, (PCWSTR)CGuidToString(value)); } else { wprintf(L"%ws: <Not Found>\n", keyName); } } // Reads properties for the user specified object. void ReadContentProperties( _In_ IPortableDevice* device) { HRESULT hr = S_OK; WCHAR selection[SELECTION_BUFFER_SIZE] = {0}; IPortableDeviceProperties *properties; IPortableDeviceValues *objectProperties; IPortableDeviceContent *content; IPortableDeviceKeyCollection *propertiesToRead; // Prompt user to enter an object identifier on the device to read properties from. wprintf(L"Enter the identifer of the object you wish to read properties from.\n>"); hr = StringCchGetsW(selection, ARRAYSIZE(selection)); if (FAILED(hr)) { wprintf(L"An invalid object identifier was specified, aborting property reading\n"); } // 1) Get an IPortableDeviceContent interface from the IPortableDevice interface to // access the content-specific methods. if (SUCCEEDED(hr)) { hr = device->Content(&content); if (FAILED(hr)) { wprintf(L"! Failed to get IPortableDeviceContent from IPortableDevice, hr = 0x%lx\n", hr); } } // 2) Get an IPortableDeviceProperties interface from the IPortableDeviceContent interface // to access the property-specific methods. if (SUCCEEDED(hr)) { hr = content->Properties(&properties); if (FAILED(hr)) { wprintf(L"! Failed to get IPortableDeviceProperties from IPortableDevice, hr = 0x%lx\n", hr); } } // 3) CoCreate an IPortableDeviceKeyCollection interface to hold the the property keys // we wish to read. //<SnippetContentProp1> hr = CoCreateInstance(CLSID_PortableDeviceKeyCollection, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&propertiesToRead)); if (SUCCEEDED(hr)) { // 4) Populate the IPortableDeviceKeyCollection with the keys we wish to read. // NOTE: We are not handling any special error cases here so we can proceed with // adding as many of the target properties as we can. HRESULT tempHr = propertiesToRead->Add(WPD_OBJECT_PARENT_ID); if (FAILED(tempHr)) { wprintf(L"! Failed to add WPD_OBJECT_PARENT_ID to IPortableDeviceKeyCollection, hr= 0x%lx\n", tempHr); } tempHr = propertiesToRead->Add(WPD_OBJECT_NAME); if (FAILED(tempHr)) { wprintf(L"! Failed to add WPD_OBJECT_NAME to IPortableDeviceKeyCollection, hr= 0x%lx\n", tempHr); } tempHr = propertiesToRead->Add(WPD_OBJECT_SIZE); if (FAILED(tempHr)) { wprintf(L"! Failed to add WPD_OBJECT_SIZE to IPortableDeviceKeyCollection, hr= 0x%lx\n", tempHr); } tempHr = propertiesToRead->Add(WPD_OBJECT_PERSISTENT_UNIQUE_ID); if (FAILED(tempHr)) { wprintf(L"! Failed to add WPD_OBJECT_PERSISTENT_UNIQUE_ID to IPortableDeviceKeyCollection, hr= 0x%lx\n", tempHr); } tempHr = propertiesToRead->Add(WPD_OBJECT_FORMAT); if (FAILED(tempHr)) { wprintf(L"! Failed to add WPD_OBJECT_FORMAT to IPortableDeviceKeyCollection, hr= 0x%lx\n", tempHr); } tempHr = propertiesToRead->Add(WPD_OBJECT_CONTENT_TYPE); if (FAILED(tempHr)) { wprintf(L"! Failed to add WPD_OBJECT_CONTENT_TYPE to IPortableDeviceKeyCollection, hr= 0x%lx\n", tempHr); } } //</SnippetContentProp1> // 5) Call GetValues() passing the collection of specified PROPERTYKEYs. //<SnippetContentProp2> if (SUCCEEDED(hr)) { hr = properties->GetValues(selection, // The object whose properties we are reading propertiesToRead, // The properties we want to read &objectProperties); // Driver supplied property values for the specified object if (FAILED(hr)) { wprintf(L"! Failed to get all properties for object '%ws', hr= 0x%lx\n", selection, hr); } } //</SnippetContentProp2> // 6) Display the returned property values to the user if (SUCCEEDED(hr)) { DisplayStringProperty(objectProperties, WPD_OBJECT_PARENT_ID, L"WPD_OBJECT_PARENT_ID"); DisplayStringProperty(objectProperties, WPD_OBJECT_NAME, L"WPD_OBJECT_NAME"); DisplayStringProperty(objectProperties, WPD_OBJECT_PERSISTENT_UNIQUE_ID, L"WPD_OBJECT_PERSISTENT_UNIQUE_ID"); DisplayGuidProperty (objectProperties, WPD_OBJECT_CONTENT_TYPE, L"WPD_OBJECT_CONTENT_TYPE"); DisplayGuidProperty (objectProperties, WPD_OBJECT_FORMAT, L"WPD_OBJECT_FORMAT"); } } // Writes properties on the user specified object. void WriteContentProperties( _In_ IPortableDevice* device) { //<SnippetContentProp3> HRESULT hr = S_OK; BOOL canWrite = FALSE; WCHAR selection[SELECTION_BUFFE