用c语言实现WP8磁贴动态翻转功能

//FlipMotion.c #include<windows.h> #include"resource.h" #define ID_TIMER 100 #define NUM 7 //全局变量(用来控制每一次缩放的大小，注意：只是缩放位图的高度、宽度不变) int height[] = {144, 88, 32, 10, 75, 137, 200}; LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) { static TCHAR szAppName[] = TEXT("FlipMotion"); HWND hwnd; MSG msg; WNDCLASS wndclass; int cxScreen, cyScreen; wndclass.style = CS_HREDRAW | CS_VREDRAW; wndclass.lpfnWndProc = WndProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hInstance = hInstance; wndclass.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1)); wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.lpszMenuName = NULL; wndclass.lpszClassName = szAppName; if(!RegisterClass(&wndclass)) { MessageBox(NULL, TEXT("This program requires Windows NT!"), szAppName, MB_ICONERROR); return 0; } cxScreen = GetSystemMetrics(SM_CXSCREEN); cyScreen = GetSystemMetrics(SM_CYSCREEN); hwnd = CreateWindow(szAppName, TEXT("FlipMotion Demo"), WS_POPUP, (cxScreen - 200) / 2, (cyScreen - 200)/ 2, 200, 200, NULL, NULL, hInstance, NULL); ShowWindow(hwnd, iCmdShow); UpdateWindow(hwnd); while(GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { //回调函数中的静态局部变量 static HBITMAP hBmp[2]; //存放正反面位图句柄 static SIZE sBmp, sClient; //位图大小、客户区大小(用于缩放) static POINT ptBmp; //位图位置(保证始终居中显示) static int curIndex, isFirst; //当前索引(height数组)、是否为正面(用于交换位图) BITMAP bmp; HINSTANCE hInstance; HDC hdc, hdcMem; PAINTSTRUCT ps; switch(message) { case WM_CREATE: //加载位图 hInstance = ((LPCREATESTRUCT)lParam)->hInstance; hBmp[0] = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_BITMAP1)); hBmp[1] = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_BITMAP2)); GetObject(hBmp[0], sizeof(BITMAP), &bmp); sBmp.cx = bmp.bmWidth; sBmp.cy = bmp.bmHeight; //设置计时器 SetTimer(hwnd, ID_TIMER, 120, NULL); return 0; case WM_SIZE: //获取客户区大小 sClient.cx = LOWORD(lParam); sClient.cy = HIWORD(lParam); //修改位图当前位置坐标 ptBmp.x = (sClient.cx - sBmp.cx) / 2; ptBmp.y = (sClient.cy - sBmp.cy) / 2; return 0; case WM_PAINT: //按照一定比例缩放位图 hdc = BeginPaint(hwnd, &ps); hdcMem = CreateCompatibleDC(hdc); SelectObject(hdcMem, hBmp[isFirst]); SetStretchBltMode(hdc, COLORONCOLOR); StretchBlt(hdc, ptBmp.x, ptBmp.y, sBmp.cx, sBmp.cy, hdcMem, 0, 0, 200, 200, SRCCOPY); DeleteDC(hdcMem); EndPaint(hwnd, &ps); return 0; case WM_TIMER: //修改当前显示的位图高度 sBmp.cy = height[curIndex]; //如果位图高度变为最小(也就是几乎看不太清的程序)，就交换位图 if(sBmp.cy == height[3]) { isFirst = !(isFirst & 1); } //如果位图高度之前是原始大小，那么应该停顿一会儿，这里停顿当前线程1秒 else if(sBmp.cy == height[0]) { Sleep(1000); } //修改位图显示位置，保证居中显示 ptBmp.y = (sClient.cy - sBmp.cy) / 2; //索引下一个高度(height) curIndex = (curIndex + 1) % NUM; //重绘 InvalidateRect(hwnd, NULL, TRUE); return 0; case WM_DESTROY: //回收资源 KillTimer(hwnd, ID_TIMER); { int i=0; for(;i<2; i++) { if(hBmp[i]) DeleteObject(hBmp[i]); } } PostQuitMessage(0); return 0; } return DefWindowProc(hwnd, message, wParam, lParam); }