test.cpp

// WindowsProject1.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "WindowsProject1.h"

#include <wrl/client.h>
#include <wrl/event.h>
#include <wrl/wrappers/corewrappers.h>
#include <windows.applicationmodel.datatransfer.h>
#include <tchar.h>
#include <roapi.h>
#include <ShObjIdl.h>
#include <commctrl.h>
#include <shlwapi.h>
#include <ole2.h>

namespace WRL = Microsoft::WRL;
namespace AWF = ABI::Windows::Foundation;
namespace DT = ABI::Windows::ApplicationModel::DataTransfer;

using Microsoft::WRL::Wrappers::HStringReference;

#pragma comment(lib, "runtimeobject.lib")

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                // current instance
WCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
WCHAR szWindowClass[MAX_LOADSTRING];            // the main window class name

// Forward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
                     _In_opt_ HINSTANCE hPrevInstance,
                     _In_ LPWSTR    lpCmdLine,
                     _In_ int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // TODO: Place code here.

    // Initialize global strings
    LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadStringW(hInstance, IDC_WINDOWSPROJECT1, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINDOWSPROJECT1));

    MSG msg;

    // Main message loop:
    while (GetMessage(&msg, nullptr, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return (int) msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEXW wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WINDOWSPROJECT1));
    wcex.hCursor        = LoadCursor(nullptr, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCEW(IDC_WINDOWSPROJECT1);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassExW(&wcex);
}

//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   hInst = hInstance; // Store instance handle in our global variable

   HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   WRL::ComPtr<IDataTransferManagerInterop> dtmInterop;
   WRL::ComPtr<DT::IDataTransferManager> dtm;

   EventRegistrationToken dataRequestedToken;
   RoGetActivationFactory(HStringReference(
	   RuntimeClass_Windows_ApplicationModel_DataTransfer_DataTransferManager)
	   .Get(), IID_PPV_ARGS(&dtmInterop));
   dtmInterop->GetForWindow(hWnd, IID_PPV_ARGS(&dtm));

   auto callback = WRL::Callback < AWF::ITypedEventHandler<DT::DataTransferManager*, DT::DataRequestedEventArgs* >>(
	   [&](DT::IDataTransferManager*, DT::IDataRequestedEventArgs* pArgs) -> HRESULT
	   //auto callback = WRL::Callback<AWF::ITypedEventHandler<
	   //  DT::DataTransferManager*, DT::DataRequestedEventArgs*>>(
	   //      [](auto&&, DT::IDataRequestedEventArgs* e)
   {
	   //printf("Asking for data");
	   /*
	   WRL::ComPtr<DT::IDataRequest> request;
	   e->get_Request(&request);
	   WRL::ComPtr<DT::IDataPackage> data;
	   request->get_Data(&data);
	   WRL::ComPtr<DT::IDataPackagePropertySet> properties;
	   data->get_Properties(&properties);
	   properties->put_Title(HStringReference(L"Title from Win32").Get());
	   data->SetText(HStringReference(L"Text from Win32 app!").Get());
	   */

	   WRL::ComPtr<DT::IDataRequest> spDataRequest;
	   pArgs->get_Request(&spDataRequest);
	   // Create Sharing data
	   WRL::ComPtr<DT::IDataPackage> spDataPackage;
	   spDataRequest->get_Data(&spDataPackage);
	   WRL::ComPtr<DT::IDataPackagePropertySet> spDataPacakgeProperties;
	   spDataPackage->get_Properties(&spDataPacakgeProperties);
	   spDataPacakgeProperties->put_Title(HStringReference(L"Sample win32 app").Get());
	   spDataPacakgeProperties->put_Description(HStringReference(L"Hello...world !!!").Get());
	   spDataPackage->SetText(HStringReference(L"Say hello!").Get());

	   //printf("Asked for data");
	   return S_OK;
   });

   dtm->add_DataRequested(callback.Get(), &dataRequestedToken);
   dtmInterop->ShowShareUIForWindow(hWnd);


   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND  - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_COMMAND:
        {
            int wmId = LOWORD(wParam);
            // Parse the menu selections:
            switch (wmId)
            {
            case IDM_ABOUT:
                DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
                break;
            case IDM_EXIT:
                DestroyWindow(hWnd);
                break;
            default:
                return DefWindowProc(hWnd, message, wParam, lParam);
            }
        }
        break;
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hWnd, &ps);
            // TODO: Add any drawing code that uses hdc here...
            EndPaint(hWnd, &ps);
        }
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    UNREFERENCED_PARAMETER(lParam);
    switch (message)
    {
    case WM_INITDIALOG:
        return (INT_PTR)TRUE;

    case WM_COMMAND:
        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
        {
            EndDialog(hDlg, LOWORD(wParam));
            return (INT_PTR)TRUE;
        }
        break;
    }
    return (INT_PTR)FALSE;
}