每行字体按照线性增大，颜色按照线性变化，后三行字体自己确定

//Windows2.cpp: 定义应用程序的入口点。
//

#include "stdafx.h"
#include "Windows2.h"
#include <tchar.h>

#define MAX_LOADSTRING 100

// 全局变量: 
HINSTANCE hInst;                                // 当前实例
WCHAR szTitle[MAX_LOADSTRING];                  // 标题栏文本
WCHAR szWindowClass[MAX_LOADSTRING];            // 主窗口类名

// 此代码模块中包含的函数的前向声明: 
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: 在此放置代码。

    // 初始化全局字符串
    LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadStringW(hInstance, IDC_WINDOWS2, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // 执行应用程序初始化: 
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINDOWS2));

    MSG msg;

    // 主消息循环: 
    while (GetMessage(&msg, nullptr, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return (int) msg.wParam;
}



//
//  函数: MyRegisterClass()
//
//  目的: 注册窗口类。
//
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_WINDOWS2));
    wcex.hCursor        = LoadCursor(nullptr, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCEW(IDC_WINDOWS2);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassExW(&wcex);
}

//
//   函数: InitInstance(HINSTANCE, int)
//
//   目的: 保存实例句柄并创建主窗口
//
//   注释: 
//
//        在此函数中，我们在全局变量中保存实例句柄并
//        创建和显示主程序窗口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   hInst = hInstance; // 将实例句柄存储在全局变量中

   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);

   return TRUE;
}

//
//  函数: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  目的:    处理主窗口的消息。
//
//  WM_COMMAND  - 处理应用程序菜单
//  WM_PAINT    - 绘制主窗口
//  WM_DESTROY  - 发送退出消息并返回
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	static long l;
	HDC hDC;
	HFONT hF;
	TEXTMETRIC tm;
	static int  j, m,k;
	static int x = 0, y = 0;
	int i;
	short LnCount = 5;
	PAINTSTRUCT PtStr;
	LPCWSTR line1[5] = {
		L"1 好好学习天天向上" ,
		L"2 好好学习天天向上",
		L"3 好好学习天天向上",
		L"4 好好学习天天向上",
		L"5 好好学习天天向上"
	};
    switch (message)
    {
	case WM_CREATE:
		hDC = GetDC(hWnd);
		GetTextMetrics(hDC, &tm);
		break;
    case WM_COMMAND:
        {
            int wmId = LOWORD(wParam);
            // 分析菜单选择: 
            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, &PtStr);
			GetTextMetrics(hDC, &tm);
			for (;m < 5;) {
				for (j = 0;j < 5;j++) {
					if (j == m) {
						int len = lstrlen(line1[j]);
						x = 0;
						y = y + tm.tmExternalLeading + 50 + tm.tmHeight;
						for (i = 0;i < len + 1 ;i++) {
							if (j == 0)
								hF = CreateFont(8 + k,
									0,
									0,
									0,
									FW_NORMAL,
									0,
									0,
									0,
									GB2312_CHARSET,
									OUT_DEFAULT_PRECIS,
									CLIP_DEFAULT_PRECIS,
									DEFAULT_QUALITY,
									DEFAULT_PITCH | FF_DONTCARE,
									L"楷体_GB2312"
								);
							else if (j == 1)
								hF = CreateFont(8 + k,
									0,
									0,
									0,
									FW_NORMAL,
									0,
									0,
									0,
									GB2312_CHARSET,
									OUT_DEFAULT_PRECIS,
									CLIP_DEFAULT_PRECIS,
									DEFAULT_QUALITY,
									DEFAULT_PITCH | FF_DONTCARE,
									L"黑体字"
								);
							else if (j == 2)
								hF = CreateFont(8 + k,
									0,
									0,
									0,
									FW_NORMAL,
									1,
									0,
									0,
									GB2312_CHARSET,
									OUT_DEFAULT_PRECIS,
									CLIP_DEFAULT_PRECIS,
									DEFAULT_QUALITY,
									DEFAULT_PITCH | FF_DONTCARE,
									L"粗体字"
								);
							else if (j == 3)
								hF = CreateFont(8 + k,
									0,
									0,
									0,
									FW_NORMAL,
									0,
									0,
									0,
									GB2312_CHARSET,
									OUT_DEFAULT_PRECIS,
									CLIP_DEFAULT_PRECIS,
									DEFAULT_QUALITY,
									DEFAULT_PITCH | FF_DONTCARE,
									L"大号字"
								);
							else if (j == 4) {
								hF = CreateFont(8 + k,
									0,
									0,
									0,
									FW_NORMAL,
									1,
									0,
									0,
									GB2312_CHARSET,
									OUT_DEFAULT_PRECIS,
									CLIP_DEFAULT_PRECIS,
									DEFAULT_QUALITY,
									DEFAULT_PITCH | FF_DONTCARE,
									L"大号字"
								);
							}
							else
								hF = CreateFont(8 + k,
									0,
									0,
									0,
									FW_NORMAL,
									0,
									0,
									0,
									GB2312_CHARSET,
									OUT_DEFAULT_PRECIS,
									CLIP_DEFAULT_PRECIS,
									DEFAULT_QUALITY,
									DEFAULT_PITCH | FF_DONTCARE,
									L"楷体_GB2312"
								);
							SelectObject(hDC, hF);
							SetTextColor(hDC, RGB(k + 50,2 * k + 10,3 *  k + 15));
							Sleep(200);
							k++;
							x = x + tm.tmAveCharWidth * 10;
							TextOut(hDC, x, y, &line1[j][i], 1);
						}
					}
				}
				m++;
				Sleep(1000);
				if (m <= 4) {
					InvalidateRect(hWnd, NULL, TRUE);
					UpdateWindow(hWnd);
				}
			}
        }
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// “关于”框的消息处理程序。
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;
}