Перейти к содержимому



Программа отображающая часы со стрелками (пример)


  • Авторизуйтесь для ответа в теме
В этой теме нет ответов

#1 admin

admin

    Администратор

  • Администраторы
  • 76 сообщений

Отправлено 23 Февраль 2013 - 20:41

Создать в Visual Studio проект WIN32 Project с именем clocks и заменить текст программы на приведенный
Замените в тексте IDM_about на IDM_ABOUT (почему-то здесь идет автозамена)

clocks.png

// clocks.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "clocks.h"
#include <cmath>
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst;	 // current instance
TCHAR szTitle[MAX_LOADSTRING];	 // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
// Forward declarations of functions included in this code module:
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 _tWinMain(HINSTANCE hInstance,
					 HINSTANCE hPrevInstance,
					 LPTSTR lpCmdLine,
					 int	 nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_CLOCKS, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_CLOCKS));
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int) msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage are 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;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_CLOCKS));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = MAKEINTRESOURCE(IDC_CLOCKS);
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassEx(&wcex);
}
//
// FUNCTION: InitInstance(HINSTANCE, 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.
//
HWND wnd;
void move()
{
InvalidateRect(wnd, NULL, 1);
UpdateWindow(wnd);
}
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, 240, 280, NULL, NULL, hInstance, NULL);
if (!hWnd)
{
	 return FALSE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
wnd = hWnd;
SetTimer(hWnd,NULL,100,(TIMERPROC)move);
return TRUE;
}
void line(HDC hdc, int x1, int y1, int x2, int y2, COLORREF color)
{
int deltaX = abs(x2 - x1); int deltaY = abs(y2 - y1);
int signX = x1 < x2 ? 1 : -1; int signY = y1 < y2 ? 1 : -1;
int error = deltaX - deltaY;
for (; ;) {
SetPixel(hdc,x1, y1,color);
if(x1 == x2 && y1 == y2) break;
int error2 = error * 2;
if(error2 > -deltaY) { error -= deltaY; x1 += signX; }
if(error2 < deltaX) { error += deltaX; y1 += signY; }
}
}
void rotate(int x,int y,int shiftx, int shifty, double alpha, int* x1, int* y1)
{
x -= shiftx;
y -= shifty;
*x1 = x*cos(alpha) - y*sin(alpha) + shiftx;
*y1 = x*sin(alpha) + y*cos(alpha) + shifty;
}
double alpha = 0;
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int x1,x2,y1,y2;
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
SYSTEMTIME st;
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
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, &ps);
Ellipse(hdc,10,10,210,210);
Ellipse(hdc,100,100,120,120);
GetLocalTime(&st);
alpha = (st.wSecond*6)*3.14/180;
rotate(110,20,110,110,alpha,&x1,&y1);
rotate(110,100,110,110,alpha,&x2,&y2);
line(hdc,x1,y1,x2,y2,RGB(0,0,255));
alpha = (st.wMinute*6)*3.14/180;
rotate(110,30,110,110,alpha,&x1,&y1);
rotate(110,100,110,110,alpha,&x2,&y2);
line(hdc,x1,y1,x2,y2,RGB(0,255,0));
alpha = ((st.wHour%12)*30)*3.14/180;
rotate(110,50,110,110,alpha,&x1,&y1);
rotate(110,100,110,110,alpha,&x2,&y2);
line(hdc,x1,y1,x2,y2,RGB(255,0,0));
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Message handler for about box.
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;
}





Количество пользователей, читающих эту тему: 0

0 пользователей, 0 гостей, 0 скрытых пользователей

Рейтинг@Mail.ru