// jhgj.cpp : 定义应用程序的入口点。//#include "stdafx.h"#include "jhgj.h"#include 
     
      #include 
      
       using namespace Gdiplus;#pragma comment (lib,"Gdiplus.lib")#define MAX_LOADSTRING 100VOID OnPaint(HDC hdc){    Graphics graphics(hdc);    Pen      pen(Color(255, 0, 0, 255));    graphics.DrawLine(&pen, 0, 0, 200, 100);    SolidBrush  brush(Color(255, 0, 0, 255));    FontFamily  fontFamily(L"Times New Roman");    Font        font(&fontFamily, 24, FontStyleRegular, UnitPixel);    PointF      pointF(10.0f, 20.0f);    graphics.DrawString(L"Hello World!", -1, &font, pointF, &brush);}// Global Variables:HINSTANCE hInst;                                // current instanceTCHAR szTitle[MAX_LOADSTRING];                    // The title bar textTCHAR 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 _tWinMain(HINSTANCE hInstance,                     HINSTANCE hPrevInstance,                     LPTSTR    lpCmdLine,                     int       nCmdShow){    UNREFERENCED_PARAMETER(hPrevInstance);    UNREFERENCED_PARAMETER(lpCmdLine);     // TODO: Place code here.    MSG msg;    HACCEL hAccelTable;    // Initialize global strings    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);    LoadString(hInstance, IDC_JHGJ, szWindowClass, MAX_LOADSTRING);    MyRegisterClass(hInstance);        GdiplusStartupInput gdiplusStartupInput;    ULONG_PTR           gdiplusToken;    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);    // Perform application initialization:    if (!InitInstance (hInstance, nCmdShow))    {        return FALSE;    }    hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_JHGJ));    // Main message loop:    while (GetMessage(&msg, NULL, 0, 0))    {        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))        {            TranslateMessage(&msg);            DispatchMessage(&msg);        }    }        GdiplusShutdown(gdiplusToken);    return (int) msg.wParam;}////  FUNCTION: MyRegisterClass()////  PURPOSE: Registers the window class.////  COMMENTS:////    This function and its usage are only necessary if you want this code//    to be compatible with Win32 systems prior to the 'RegisterClassEx'//    function that was added to Windows 95. It is important to call this function//    so that the application will get 'well formed' small icons associated//    with it.//ATOM MyRegisterClass(HINSTANCE hInstance){    WNDCLASSEX 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_JHGJ));    wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);    wcex.hbrBackground    = (HBRUSH)(COLOR_WINDOW+1);    wcex.lpszMenuName    = MAKEINTRESOURCE(IDC_JHGJ);    wcex.lpszClassName    = szWindowClass;    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));    return RegisterClassEx(&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){   HWND hWnd;   hInst = hInstance; // Store instance handle in our global variable   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);   if (!hWnd)   {      return FALSE;   }   ShowWindow(hWnd, nCmdShow);   UpdateWindow(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){    int wmId, wmEvent;    PAINTSTRUCT ps;    HDC hdc;    switch (message)    {    case WM_COMMAND:        wmId    = LOWORD(wParam);        wmEvent = HIWORD(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:        {            hdc = BeginPaint(hWnd, &ps);            HDC hDDC = GetDC( GetDesktopWindow() );            BitBlt(hdc,0,0,100,100,hDDC,0,0,SRCCOPY);            OnPaint(hdc);            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;}