>_<:This time we will study a new way to operate your picture.That is running your picture by give it a timer-message.
>_<:Firstly,you should use the function SetTimer(hWnd,1,50,NULL) to create and set a timer (here "1" means the timer is number 1,you can understand it as the timer‘s name; "50" means frequency)
>_<:Then only need to add timer-message listener in WndProc(...) function:
1 LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 2 { 3 int i; 4 5 switch (message) //判断消息类型 6 { 7 case WM_TIMER: //时间消息 8 MyPaint(hdc); 9 break; 10 case WM_DESTROY: //处理窗口结束消息 11 DeleteDC(mdc); 12 ReleaseDC(hWnd,hdc); 13 for(i=0;i<12;i++) 14 DeleteObject(girl[i]); 15 KillTimer(hWnd,1); 16 PostQuitMessage(0); 17 break; 18 default: 19 return DefWindowProc(hWnd, message, wParam, lParam); 20 } 21 return 0; 22 }
>_<:And now function MyPaint(...) will be carryed out at stated times.
>_<:code:picture resource
1 //{{NO_DEPENDENCIES}} 2 // Microsoft Visual C++ generated include file. 3 // Used by FE.RC 4 // 5 #define IDR_MAINFRAME 128 6 #define IDD_FE_DIALOG 102 7 #define IDD_ABOUTBOX 103 8 #define IDS_APP_TITLE 103 9 #define IDM_ABOUT 104 10 #define IDM_EXIT 105 11 #define IDS_HELLO 106 12 #define IDI_FE 107 13 #define IDI_SMALL 108 14 #define IDC_FE 109 15 #define IDC_MYICON 2 16 #define IDC_STATIC -1 17 // Next default values for new objects 18 // 19 #ifdef APSTUDIO_INVOKED 20 #ifndef APSTUDIO_READONLY_SYMBOLS 21 22 #define _APS_NEXT_RESOURCE_VALUE 129 23 #define _APS_NEXT_COMMAND_VALUE 32771 24 #define _APS_NEXT_CONTROL_VALUE 1000 25 #define _APS_NEXT_SYMED_VALUE 110 26 #endif 27 #endif
1 // stdafx.h : include file for standard system include files, 2 // or project specific include files that are used frequently, but 3 // are changed infrequently 4 // 5 6 #if !defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_) 7 #define AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_ 8 9 #if _MSC_VER > 1000 10 #pragma once 11 #endif // _MSC_VER > 1000 12 13 #define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers 14 15 16 // Windows Header Files: 17 #include <windows.h> 18 19 // C RunTime Header Files 20 #include <stdlib.h> 21 #include <malloc.h> 22 #include <memory.h> 23 #include <tchar.h> 24 25 // Local Header Files 26 27 // TODO: reference additional headers your program requires here 28 29 //{{AFX_INSERT_LOCATION}} 30 // Microsoft Visual C++ will insert additional declarations immediately before the previous line. 31 32 #endif // !defined(AFX_STDAFX_H__A9DB83DB_A9FD_11D0_BFD1_444553540000__INCLUDED_)
1 #include "stdafx.h" 2 #include "resourse.h" 3 #include "stdio.h" 4 #include "time.h" 5 6 #define MAX_LOADSTRING 100 7 8 // Global Variables: 9 HINSTANCE hInst; // current instance 10 TCHAR szTitle[MAX_LOADSTRING]; // The title bar text 11 TCHAR szWindowClass[MAX_LOADSTRING]; // The title bar text 12 HBITMAP girl[12]; 13 HDC mdc,hdc; 14 int num; 15 16 // Foward declarations of functions included in this code module: 17 ATOM MyRegisterClass(HINSTANCE hInstance); 18 BOOL InitInstance(HINSTANCE, int); 19 LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); 20 LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM); 21 void MyPaint(HDC hdc); 22 //======================================================================================== 23 int APIENTRY WinMain(HINSTANCE hInstance, 24 HINSTANCE hPrevInstance, 25 LPSTR lpCmdLine, 26 int nCmdShow) 27 { 28 // TODO: Place code here. 29 MSG msg; 30 31 MyRegisterClass(hInstance);//调用函数向系统注册窗口类别，输入参数hInstance是目前运行程序的对象代码； 32 33 // 调用InitInstance函数，进行初始化操作； 34 if (!InitInstance (hInstance, nCmdShow)) 35 { 36 return FALSE; 37 } 38 39 // 消息循环（通过消息循环来获取信息， 40 //进行必要的键盘信息转换而后将控制权交给操作系统， 41 //有操作系统决定哪个程序的消息处理函数处理消息 42 while (GetMessage(&msg, NULL, 0, 0)) //获取程序消息 43 { 44 TranslateMessage(&msg);//转换伪码及字符 45 DispatchMessage(&msg);//将控制权交给系统，再有系统决定负责处理消息的程序； 46 } 47 48 return msg.wParam; 49 } 50 //===================================================================================== 51 52 53 54 //============================================================================================= 55 //在建立程序窗口实体之前，必须先定义一个窗口类别，其中包含所要建立窗口的信息， 56 //并向系统注册，这里的MyRegisterClass函数就是进行定义及注册窗口类别的函数。 57 //============================================================================================== 58 ATOM MyRegisterClass(HINSTANCE hInstance) 59 { 60 WNDCLASSEX wcex; //申请一个窗口类别“WNDCLASSEX”和结构”wcex“ 61 //-------------------------------------------------------------- 62 //定义vcex结构的各项信息，其中设定信息处理函数（lpfnWndProc） 63 //为WNDPROC，类别名称为（lpszClassName）为”fe"; 64 //-------------------------------------------------------------- 65 wcex.cbSize = sizeof(WNDCLASSEX); 66 67 wcex.style = CS_HREDRAW | CS_VREDRAW; 68 wcex.lpfnWndProc = (WNDPROC)WndProc; 69 wcex.cbClsExtra = 0; 70 wcex.cbWndExtra = 0; 71 wcex.hInstance = hInstance; 72 wcex.hIcon = NULL; 73 wcex.hCursor = NULL; 74 wcex.hCursor = LoadCursor(NULL,IDC_ARROW); 75 wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); 76 wcex.lpszMenuName = NULL; 77 wcex.lpszClassName = "fe"; 78 wcex.hIconSm = NULL; 79 80 return RegisterClassEx(&wcex);//调用RegisterClassEx函数注册类别，返回一个“ATOM"形态的字符串 81 //此字符串即为类别名称”fe"; 82 } 83 //============================================================================================ 84 85 86 //============================================================================================ 87 //按照前面所定义的窗口类别来建立并显示实际的程序窗口 88 //============================================================================================ 89 BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) 90 { 91 HWND hWnd; 92 char filename[20]=""; 93 int i; 94 hInst = hInstance; // 把instance handle 储存在全局变量中； 95 96 hWnd = CreateWindow("fe","绘图窗口",WS_OVERLAPPEDWINDOW, 97 CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); 98 //----------------------------------------------- 99 //调用CreateWindow函数来建立一个窗口对象 100 //第一个参数就是窗口建立依据的类别名称 101 //----------------------------------------------- 102 if (!hWnd) 103 { 104 return FALSE; 105 } 106 //------------------------------------------------ 107 //设定窗口的位置及窗口的大小，然后绘制显示在设备上 108 //------------------------------------------------- 109 MoveWindow(hWnd,10,10,616,440,true);//位置及大小 110 ShowWindow(hWnd, nCmdShow);//改定窗口显示时的状态 111 UpdateWindow(hWnd);//将窗口绘制在显示设备上 112 113 hdc=GetDC(hWnd); 114 mdc=CreateCompatibleDC(hdc); 115 116 for(i=0;i<12;i++) 117 { 118 sprintf(filename,"map%d.bmp",i); 119 girl[i]=(HBITMAP)LoadImage(NULL,filename,IMAGE_BITMAP,50,50,LR_LOADFROMFILE); 120 } 121 122 num=0; 123 SetTimer(hWnd,1,50,NULL); 124 srand((unsigned)time(NULL)); 125 126 MyPaint(hdc); 127 128 return TRUE; 129 } 130 //============================================================================================ 131 132 133 //============================================================================================ 134 // 135 //============================================================================================ 136 void MyPaint(HDC hdc) 137 { 138 if(num>11)num=0; 139 for(int j=0;j<96;j++) 140 { 141 SelectObject(mdc,girl[ rand()%12]); 142 BitBlt(hdc,50*(j%12),j/12*50,650,450,mdc,0,0,SRCCOPY); 143 } 144 num++; 145 } 146 //============================================================================================ 147 148 149 //============================================================================================ 150 //在前面定义类别的时候把WndProc定义为消息处理函数（当某些外部消息发生时，会按消息的类型 151 //来决定该如何进行处理。此外该函数也是一个回叫函数（CALLBACK)（windows系统函数）每一个 152 //程序都会接收信息，选择性接受、处理； 153 //============================================================================================ 154 LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 155 { 156 int i; 157 158 switch (message) //判断消息类型 159 { 160 case WM_TIMER: //时间消息 161 MyPaint(hdc); 162 break; 163 case WM_DESTROY: //处理窗口结束消息 164 DeleteDC(mdc); 165 ReleaseDC(hWnd,hdc); 166 for(i=0;i<12;i++) 167 DeleteObject(girl[i]); 168 KillTimer(hWnd,1); 169 PostQuitMessage(0); 170 break; 171 default: 172 return DefWindowProc(hWnd, message, wParam, lParam); 173 } 174 return 0; 175 } 176 //============================================================================================