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//根據(jù)窗口類型或者窗口標(biāo)題獲取窗口句柄

[DllImport("User32.dll", EntryPoint = "FindWindow")]

private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

//根據(jù)父窗口句柄、子窗口句柄、窗口類型、窗口標(biāo)題 獲取句柄

[DllImport("user32.dll", EntryPoint = "FindWindowEx", SetLastError = true)]

private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

/// <summary>

/// 向指定句柄的窗口發(fā)送消息

/// </summary>

/// <param name="hWnd">窗口句柄</param>

/// <param name="Msg">消息類型</param>

/// <param name="wParam">消息1</param>

/// <param name="lParam">消息2</param>

/// <returns></returns>

[DllImport("User32.dll", EntryPoint = "SendMessage")]

private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);

//將指定句柄的窗口置頂

[DllImport("User32.dll", EntryPoint = "SetForegroundWindow")]

private static extern bool SetForegroundWindow(IntPtr hWnd);

const int WM_SETTEXT = 0x000C; //為指定句柄的窗口設(shè)置文本信息

const int WM_CLICK = 0x00F5; //為指定句柄的窗口發(fā)送點(diǎn)擊事件

//根據(jù)窗口名稱獲取出啊港口句柄

IntPtr IPWnd = new IntPtr(0);

IPWnd = FindWindow(null, "運(yùn)維客戶端");

if (IPWnd != IntPtr.Zero)

{

    //根據(jù)找到的窗口  找到里面的輸入框

    IntPtr txtWnd = new IntPtr(0);

    txtWnd = FindWindowEx(IPWnd, IntPtr.Zero, "Edit", null);

    if (txtWnd != IntPtr.Zero)

    {

        //如果找到了，就往里面輸入文本信息

        SendMessage(txtWnd, WM_SETTEXT, IntPtr.Zero, "文本信息");

    }

    //對于存在相同類型的控件,尋找起來是相對麻煩一些的，因?yàn)樗麄儧]有獨(dú)特的標(biāo)志，但是有獨(dú)自的index

    //如該例中的Button ,我們可以通過index獲取想要的控件句柄

    //但是因?yàn)樵摪粹o是第一個(gè)，所以默認(rèn)找到的就是它，可以不做特殊處理

    //如果要按照INDEX獲取 可以使用下面的 FindWindowByIndex 方法

    IntPtr buttonQRWnd = new IntPtr(0);

    buttonQRWnd = FindWindowEx(IPWnd, IntPtr.Zero, null, null);

    if (buttonQRWnd != IntPtr.Zero)

    {

        //將窗體置頂 點(diǎn)擊事件要確保被點(diǎn)擊的單位在最頂層，要不然點(diǎn)不到

        SetForegroundWindow(IPWnd);

        //在任何操作之前最好等待一下，在這里主要避免置頂操作還未完成就觸發(fā)點(diǎn)擊事件，從而導(dǎo)致點(diǎn)擊失效

        Thread.Sleep(150);

        //給按鈕發(fā)送點(diǎn)擊消息

        SendMessage(buttonQRWnd, WM_CLICK, IntPtr.Zero, "");

    }

}

static IntPtr FindWindowByIndex(IntPtr hWndParent, int index)

{

    if (index == 0)

        return hWndParent;

    else

    {

        int ct = 0;

        IntPtr result = IntPtr.Zero;

        do

        {

            result = FindWindowEx(hWndParent, result, "Button", null);

            if (result != IntPtr.Zero)

                ++ct;

        }

        while (ct < index && result != IntPtr.Zero);

        return result;

    }

}

//獲取主窗口句柄

IntPtr LoginWnd = new IntPtr(0);

LoginWnd = FindWindow("OMClientPlus", null);

if (LoginWnd != IntPtr.Zero)

{

    //下面的操作都是為了找到最里面的控件的句柄

    //也就是sehlln內(nèi)包含了shellView，shellView內(nèi)又包含了ies ，最終ies才是承載html的容器控件

    //視情況按照Spy++中顯示的控件包含關(guān)系確認(rèn)最終的控件信息

    IntPtr shell = FindWindowEx(LoginWnd,IntPtr.Zero, "Shell Embedding",null);

    Thread.Sleep(50);

    IntPtr shellview = FindWindowEx(shell, IntPtr.Zero, "Shell DocObject View", null);

    Thread.Sleep(50);

    IntPtr ies = FindWindowEx(shellview, IntPtr.Zero, "Internet Explorer_Server", null);

    Thread.Sleep(50);

    //獲取容器控件中的HtmlDoucument

    mshtml.IHTMLDocument2 id = GetHtmlDocument(ies.ToInt32());

    //獲取到所有的Input類型的組件

    mshtml.IHTMLElementCollection inputs;

    inputs = (mshtml.IHTMLElementCollection)id.all.tags("input");

    //找到用戶名

    mshtml.IHTMLElement accountElement = (mshtml.IHTMLElement)inputs.item("u",0);

    mshtml.IHTMLInputElement accountInputElement = (mshtml.IHTMLInputElement)accountElement;

    accountInputElement.value = account;

    Thread.Sleep(150);

    //找到密碼

    mshtml.IHTMLElement passwordElement = (mshtml.IHTMLElement)inputs.item("p", 0);

    mshtml.IHTMLInputElement passwordInputElement = (mshtml.IHTMLInputElement)passwordElement;

    passwordInputElement.value = password;

    Thread.Sleep(150);

    //點(diǎn)擊確認(rèn)按鈕

    mshtml.IHTMLElement login = (mshtml.IHTMLElement)inputs.item("Login", 0);

    login.click();

}

public mshtml.IHTMLDocument2 GetHtmlDocument(int hwnd)

 {

     System.Object domObject = new System.Object();

     int tempInt = 0;

     System.Guid guidIEDocument2 = new Guid();

     int WM_Html_GETOBJECT = Win32API.RegisterWindowMessage("WM_Html_GETOBJECT");//定義一個(gè)新的窗口消息

     int W = Win32API.SendMessage(hwnd, WM_Html_GETOBJECT, 0, ref tempInt);//注:第二個(gè)參數(shù)是RegisterWindowMessage函數(shù)的返回值

     int lreturn = Win32API.ObjectfromLresult(W, ref guidIEDocument2, 0, ref domObject);

     mshtml.IHTMLDocument2 doc = (mshtml.IHTMLDocument2)domObject;

     return doc;

 }