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本帖最后由 sky_yx 于 2015-12-30 14:18 编辑
- // RunButton.cpp : Defines the entry point for the application.
- //
- #include "stdafx.h"
- #include "resource.h"
- #define MAX_LOADSTRING 100
- #define IDC_BUTTON 1 // 按钮ID
- // Global Variables:
- HINSTANCE hInst; // current instance
- TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
- TCHAR szWindowClass[MAX_LOADSTRING]; // The title bar text
- // 自定义全局变量
- BOOL isVisible; // 按钮是否可见
- WNDPROC OldButton; // 按钮默认处理过程
- int cxButton, cyButton, cxClient, cyClient; // 按钮宽高,客户区宽高
- // Foward declarations of functions included in this code module:
- ATOM MyRegisterClass(HINSTANCE hInstance);
- BOOL InitInstance(HINSTANCE, int);
- LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
- LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
- LRESULT CALLBACK Button(HWND, UINT, WPARAM, LPARAM);
- int APIENTRY WinMain(HINSTANCE hInstance,
- HINSTANCE hPrevInstance,
- LPSTR lpCmdLine,
- int nCmdShow)
- {
- // TODO: Place code here.
- MSG msg;
- HACCEL hAccelTable;
- // Initialize global strings
- LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
- LoadString(hInstance, IDC_RUNBUTTON, szWindowClass, MAX_LOADSTRING);
- MyRegisterClass(hInstance);
- // Perform application initialization:
- if (!InitInstance (hInstance, nCmdShow))
- {
- return FALSE;
- }
- hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_RUNBUTTON);
- // Main message loop:
- while (GetMessage(&msg, NULL, 0, 0))
- {
- if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
- {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
- }
- return msg.wParam;
- }
- //
- // FUNCTION: MyRegisterClass()
- //
- // PURPOSE: Registers the window class.
- //
- // COMMENTS:
- //
- // This function and its usage is 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)WndProc;
- wcex.cbClsExtra = 0;
- wcex.cbWndExtra = 0;
- wcex.hInstance = hInstance;
- wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_RUNBUTTON);
- wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
- wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
- wcex.lpszMenuName = (LPCSTR)IDC_RUNBUTTON;
- wcex.lpszClassName = szWindowClass;
- wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
- return RegisterClassEx(&wcex);
- }
- //
- // FUNCTION: InitInstance(HANDLE, 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, unsigned, WORD, LONG)
- //
- // 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)
- {
- static int cxBorder, cyBorder; // 边框尺寸
- static HWND hWndButton; // 按钮句柄
- int wmId, wmEvent;
- PAINTSTRUCT ps;
- HDC hdc;
- TCHAR szHello[MAX_LOADSTRING];
- LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
- switch (message)
- {
- case WM_CREATE:
- // 创建按钮
- hWndButton = CreateWindow(TEXT("Button"), TEXT("跑!跑!跑!"),
- WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON,
- 0, 0, 0, 0, hWnd,
- (HMENU)IDC_BUTTON, hInst, NULL);
- // 变量赋初值
- isVisible = TRUE;
- cxButton = 200;
- cyButton = 60;
- // 得到边框的尺寸,为了确定窗口最小尺寸
- RECT rt, rect;
- GetClientRect(hWnd, &rt);
- GetWindowRect(hWnd, &rect);
- cxBorder = rect.right - rect.left - rt.right;
- cyBorder = rect.bottom - rect.top - rt.bottom;
- // 修改按钮消息处理过程
- OldButton = (WNDPROC)SetWindowLong(hWndButton, GWL_WNDPROC, (LONG)Button);
-
- break;
- // 修改窗口最小宽度和高度,避免出现按钮显示不全的现象。
- case WM_GETMINMAXINFO:
- PMINMAXINFO mmInfo;
- mmInfo = (PMINMAXINFO)lParam;
- mmInfo->ptMinTrackSize.x = cxButton + cxBorder;
- mmInfo->ptMinTrackSize.y = cyButton + cyBorder;
- break;
- /* case WM_SIZING:
- PRECT rect;
- rect = (PRECT)lParam;
- if ((rect->right - rect->left) < cxButton || (rect->bottom - rect->top) < cyButton)
- {
- rect->right = max(cxButton, rect->right - rect->left) + rect->left;
- rect->bottom = max(cyButton, rect->bottom - rect->top) + rect->top;
- }
- break;*/
- case WM_SIZE:
- // 如果按钮为隐藏状态,将按钮显示
- if (!isVisible)
- {
- ShowWindow(hWndButton, SW_SHOW);
- isVisible = TRUE;
- }
- // 随即移动按钮位置,位置最小值为1,以免出现除数为0的情况。
- cxClient = LOWORD(lParam);
- cyClient = HIWORD(lParam);
- MoveWindow(hWndButton, rand() % max(cxClient - cxButton, 1),
- rand() % max(cyClient - cyButton, 1), cxButton,
- cyButton, TRUE);
- break;
- case WM_COMMAND:
- wmId = LOWORD(wParam);
- wmEvent = HIWORD(wParam);
- // Parse the menu selections:
- switch (wmId)
- {
- case IDM_ABOUT:
- DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
- break;
- case IDM_EXIT:
- DestroyWindow(hWnd);
- break;
- default:
- return DefWindowProc(hWnd, message, wParam, lParam);
- }
- break;
- /* case WM_PAINT:
- hdc = BeginPaint(hWnd, &ps);
- // TODO: Add any drawing code here...
- RECT rt;
- GetClientRect(hWnd, &rt);
- EndPaint(hWnd, &ps);
- break;*/
- case WM_DESTROY:
- PostQuitMessage(0);
- break;
- default:
- return DefWindowProc(hWnd, message, wParam, lParam);
- }
- return 0;
- }
- // Mesage handler for about box.
- LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
- {
- switch (message)
- {
- case WM_INITDIALOG:
- return TRUE;
- case WM_COMMAND:
- if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
- {
- EndDialog(hDlg, LOWORD(wParam));
- return TRUE;
- }
- break;
- }
- return FALSE;
- }
- // 按钮消息处理过程
- LRESULT CALLBACK Button(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
- {
- switch(message)
- {
- // 如果被按到了,就隐藏
- case WM_LBUTTONDOWN:
- ShowWindow(hWnd, SW_HIDE);
- isVisible = FALSE;
- break;
- // 鼠标移动到按钮上时,按钮随即移动
- case WM_MOUSEMOVE:
- MoveWindow(hWnd, rand() % max(cxClient - cxButton, 1),
- rand() % max(cyClient - cyButton, 1), cxButton,
- cyButton, TRUE);
- break;
- default:
- break;
- }
- return CallWindowProc(OldButton, hWnd, message, wParam, lParam);
- }
复制代码
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