进度条C文件#include #include //InitCommonControls//过程函数的返回值都是LRESULT,类型都是CALLBACKLRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam);int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPTSTR lpszCmdLine,int nCmdShow){HWND hwnd; //主窗口句柄,在CreateWindow中赋值MSG msg; //消息变量,在GetMessage中使用WNDCLASS wndclass; //窗口类TCHAR* szAppName = TEXT("ProgressBar"); //类名和窗口名wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); //窗口背景wndclass.hCursor = LoadCursor(NULL,IDC_ARROW); //鼠标wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION); //图标wndclass.lpszClassName = szAppName; //类名wndclass.cbClsExtra = 0; //类的额外参数wndclass.cbWndExtra = 0; //窗口的额外参数.用于基于同一窗口类的窗口各自区分.//在自定义对话框类时必须指定为DLGWINDOWEXTRA的大小wndclass.lpszMenuName = NULL; //菜单名.可以用作子窗口的idwndclass.style = CS_HREDRAW | CS_VREDRAW; //窗口风格wndclass.lpfnWndProc = WndProc; //窗口过程wndclass.hInstance = hInstance; //包含窗口过程的实例句柄if( !RegisterClass(&wndclass) ) //注册窗口类return 0;hwnd = CreateWindow( //创建窗口szAppName, //窗口类名szAppName, //窗口标题WS_OVERLAPPED | WS_SYSMENU | WS_MINIMIZEBOX, //窗口风格CW_USEDEFAULT, //初始的x坐标CW_USEDEFAULT, //初始的y坐标480, //初始的宽度200, //初始的高度NULL, //父窗口NULL, //菜单hInstance, //和窗口相关的实例句柄NULL //额外参数);ShowWindow( hwnd,nCmdShow ); //显示窗口UpdateWindow( hwnd ); //更新窗口while( GetMessage(&msg,NULL,0,0) ) //消息循环{TranslateMessage(&msg); //将WM_XXXKEYXXX消息翻译为WM_CHAR消息DispatchMessage(&msg); //传递消息到窗口过程}return msg.wParam; //返回}DWORD WINAPI PBThreadProc( LPVOID lpParameter ){HWND hwndPB = (HWND) lpParameter; //进度条的窗口句柄PBRANGE range; //进度条的范围SendMessage( hwndPB, PBM_SETRANGE, //设置进度条的范围(WPARAM)0, (LPARAM)(MAKELPARAM(0,100)) );SendMessage( hwndPB, PBM_GETRANGE, //获取进度条的范围(WPARAM)TRUE, //TRUE 表示返回值为范围的最小值,FALSE表示返回最大值(LPARAM)&range );while(TRUE){SendMessage( hwndPB, PBM_DELTAPOS, //设置进度条的新位置为当前位置加上范围的1/40(WPARAM)((range.iHigh-range.iLow)/40), (LPARAM)0 );if( SendMessage( hwndPB, PBM_GETPOS, (WPARAM)0, (LPARAM)0 ) //取得进度条当前位置== range.iHigh ){SendMessage( hwndPB, PBM_SETPOS, (WPARAM)range.iLow, (LPARAM)0 ); //将进度条复位}Sleep(1000); //每1秒更新一次进度条}}LRESULT WINAPI WndProc( HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam ){static HWND hwndPB;switch( message ){case WM_CREATE:{InitCommonControls(); //确保已注册了进度条类PROGRESS_CLASShwndPB = CreateWindowEx(0,PROGRESS_CLASS,NULL,WS_CHILD | WS_VISIBLE,0,0,0,0, //位置和大小在WM_SIZE中设置hwnd,(HMENU)0,((LPCREATESTRUCT)lParam)->hInstance,NULL);CreateThread( //操作进度条的线程NULL,0,(LPTHREAD_START_ROUTINE)PBThreadProc,hwndPB,0,0);return 0;}case WM_SIZE:{RECT rc;GetClientRect(hwnd, &rc);MoveWindow(hwndPB,rc.left,(rc.bottom - rc.top )/4,rc.right - rc.left,(rc.bottom - rc.top )/10,TRUE);return 0;}case WM_DESTROY:PostQuitMessage(0);return 0;}return DefWindowProc( hwnd,message,wParam,lParam );}

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