cecreateevent.cpp

WinCE下有名Event事件编程源码 WinCE named event 在进程之间信息传递方法代码 CreateEvent 工程代码 OpenEvent工程代码

// CECreateEvent.cpp : 定义应用程序的入口点。
//

#include "stdafx.h"
#include "CECreateEvent.h"
#include <windows.h>
#include <commctrl.h>

#define MAX_LOADSTRING 100

void DoMyEvent(HWND hWnd);
// 全局变量:
HINSTANCE			g_hInst;			// 当前实例
HWND				g_hWndCommandBar;	// 命令栏句柄

// 此代码模块中包含的函数的前向声明:
ATOM			MyRegisterClass(HINSTANCE, LPTSTR);
BOOL			InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPTSTR    lpCmdLine,
                   int       nCmdShow)
{
	MSG msg;

	// 执行应用程序初始化:
	if (!InitInstance(hInstance, nCmdShow)) 
	{
		return FALSE;
	}

	HACCEL hAccelTable;
	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_CECREATEEVENT));

	// 主消息循环:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return (int) msg.wParam;
}

//
//  函数: MyRegisterClass()
//
//  目的: 注册窗口类。
//
//  注释:
//
ATOM MyRegisterClass(HINSTANCE hInstance, LPTSTR szWindowClass)
{
	WNDCLASS wc;

	wc.style         = CS_HREDRAW | CS_VREDRAW;
	wc.lpfnWndProc   = WndProc;
	wc.cbClsExtra    = 0;
	wc.cbWndExtra    = 0;
	wc.hInstance     = hInstance;
	wc.hIcon         = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_CECREATEEVENT));
	wc.hCursor       = 0;
	wc.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
	wc.lpszMenuName  = 0;
	wc.lpszClassName = szWindowClass;

	return RegisterClass(&wc);
}

//
//   函数: InitInstance(HINSTANCE, int)
//
//   目的: 保存实例句柄并创建主窗口
//
//   注释:
//
//        在此函数中，我们在全局变量中保存实例句柄并
//        创建和显示主程序窗口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    HWND hWnd;
    TCHAR szTitle[MAX_LOADSTRING];		// 标题栏文本
    TCHAR szWindowClass[MAX_LOADSTRING];	// 主窗口类名

    g_hInst = hInstance; // 将实例句柄存储在全局变量中


    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); 
    LoadString(hInstance, IDC_CECREATEEVENT, szWindowClass, MAX_LOADSTRING);


    if (!MyRegisterClass(hInstance, szWindowClass))
    {
    	return FALSE;
    }

    hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

    if (!hWnd)
    {
        return FALSE;
    }


    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

    if (g_hWndCommandBar)
    {
        CommandBar_Show(g_hWndCommandBar, TRUE);
    }

    return TRUE;
}

//
//  函数: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  目的: 处理主窗口的消息。
//
//  WM_COMMAND	- 处理应用程序菜单
//  WM_PAINT	- 绘制主窗口
//  WM_DESTROY	- 发送退出消息并返回
//
//
HANDLE g_hEvent;
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;

	
    switch (message) 
    {
        case WM_COMMAND:
            wmId    = LOWORD(wParam); 
            wmEvent = HIWORD(wParam); 
            // 分析菜单选择:
            switch (wmId)
            {
                case IDM_HELP_ABOUT:
                    DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, About);
                    break;
                case IDM_FILE_EXIT:
                    DestroyWindow(hWnd);
                    break;

                case IDC_CECREATEEVENT:
                    DoMyEvent(hWnd);
                    break;
				case ID_FILE_WAITEVENT:
                    DoMyEvent(hWnd);
					break;

                default:
                    return DefWindowProc(hWnd, message, wParam, lParam);
            }
            break;
        case WM_CREATE:
            g_hWndCommandBar = CommandBar_Create(g_hInst, hWnd, 1);
            CommandBar_InsertMenubar(g_hWndCommandBar, g_hInst, IDR_MENU, 0);
            CommandBar_AddAdornments(g_hWndCommandBar, 0, 0);
            //-------------------------------------------------------------------------
            //第二个参数为false则自动Reset，为true需要手动调用Reset复位
			g_hEvent = CreateEvent(NULL, false, FALSE, L"myevent");
			if(g_hEvent==NULL)
				::MessageBox(hWnd,L"Cannot create Event",L"",MB_OK);
			//------------------------------------------------------------------------
            break;
        case WM_PAINT:
            hdc = BeginPaint(hWnd, &ps);
            
            // TODO: 在此添加任意绘图代码...
            
            EndPaint(hWnd, &ps);
            break;
        case WM_DESTROY:
            CommandBar_Destroy(g_hWndCommandBar);
            PostQuitMessage(0);
            break;


        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// “关于”框的消息处理程序。
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
        case WM_INITDIALOG:
            RECT rectChild, rectParent;
            int DlgWidth, DlgHeight;	// 以像素为单位的对话框宽度和高度
            int NewPosX, NewPosY;

            // 设法使“关于”对话框居中显示
            if (GetWindowRect(hDlg, &rectChild)) 
            {
                GetClientRect(GetParent(hDlg), &rectParent);
                DlgWidth	= rectChild.right - rectChild.left;
                DlgHeight	= rectChild.bottom - rectChild.top ;
                NewPosX		= (rectParent.right - rectParent.left - DlgWidth) / 2;
                NewPosY		= (rectParent.bottom - rectParent.top - DlgHeight) / 2;
				
                // 如果“关于”框比实际屏幕大
                if (NewPosX < 0) NewPosX = 0;
                if (NewPosY < 0) NewPosY = 0;
                SetWindowPos(hDlg, 0, NewPosX, NewPosY,
                    0, 0, SWP_NOZORDER | SWP_NOSIZE);
            }
            return (INT_PTR)TRUE;

        case WM_COMMAND:
            if ((LOWORD(wParam) == IDOK) || (LOWORD(wParam) == IDCANCEL))
            {
                EndDialog(hDlg, LOWORD(wParam));
                return TRUE;
            }
            break;

        case WM_CLOSE:
            EndDialog(hDlg, message);
            return TRUE;

    }
    return (INT_PTR)FALSE;
}
void DoMyEvent(HWND hWnd)
{
//可以放在一个线程中，塞住
 DWORD dwRtn = WaitForSingleObject(g_hEvent, 1000);   //等1s
 if (dwRtn == WAIT_OBJECT_0)  
{
	::MessageBox(hWnd,L"Get my event",L"",MB_OK);
}
}