使用PostMessage的/ SendMessage函数发送键C＃web浏览器IE [英] Using PostMessage/SendMessage to send keys to c# IE WebBrowser

问题描述

我试图自动填写在C＃WebBrowser控件和标签值和输入，按上下贯通领域的移动。

下面是我的PInvoke和封装功能。我用间谍++在Internet Explorer中得到这些。有谁看到什么错我的定义是什么？我想用发送和张贴消息，而不是SendInput，因为我不希望有集中的窗口...

 函数[DllImport（user32.dll中）] 
 [返回：的MarshalAs（UnmanagedType.Bool）
静态的extern BOOL PostMessage的（IntPtr的的HWND，UINT味精，IntPtr的的wParam，lParam的IntPtr的）; 
 
函数[DllImport（user32.dll中）] 
静态外部INT SendMessage函数（IntPtr的的HWND，UINT味精，IntPtr的的wParam，lParam的IntPtr的）; 
 
常量UINT WM_KEYDOWN = 0100; 
常量UINT WM_KEYUP = 0x0101; 
常量UINT WM_CHAR = 0x0102; 
 const int的VK_TAB = 0×09; 
 const int的VK_ENTER = 0X0D; 
 const int的VK_UP = 0×26; 
 const int的VK_DOWN = 0x28; 
 const int的VK_RIGHT = 0×27; 
 
 //根据SPY ++在IE 
 
 // ENTER键为
 // P KEYDOWN 
 // P CHAR 
 //小号CHAR 
 // P KEY_UP 
 
 // TAB键是
 // P KEYDOWN 
 // P KEYUP 
 
 // DOWN ，上，右，左为
 // P KEYDOWN 
 //小号KEYDOWN 
 // P KEYUP 
 
 //信件是
 // P KEYDOWN 
 //小号KEYDOWN 
 // P CHAR 
 //小号CHAR 
 // P KEYUP 
 
私人无效SendEnter（）
 {
 PostMessage的（this.Handle，WM_KEYDOWN，（IntPtr的）VK_ENTER，IntPtr.Zero）; 
 PostMessage的（this.Handle，WM_CHAR，（IntPtr的）VK_ENTER，IntPtr.Zero）; 
 SendMessage函数（this.Handle，WM_CHAR，（IntPtr的）VK_ENTER，IntPtr.Zero）; 
 PostMessage的（this.Handle，WM_KEYUP，（IntPtr的）VK_ENTER，IntPtr.Zero）; 
} 
 
私人无效SendTab（）
 {
 PostMessage的（this.Handle，WM_KEYDOWN，（IntPtr的）VK_TAB，IntPtr.Zero）; 
 PostMessage的（this.Handle，WM_KEYUP，（IntPtr的）VK_TAB，IntPtr.Zero）; 
} 
 
 
私人无效SendArrowKey（INT键）
 {
 PostMessage的（this.Handle，WM_KEYDOWN，（IntPtr的）键，IntPtr.Zero） ; 
 SendMessage函数（this.Handle，WM_KEYDOWN，（IntPtr的）键，IntPtr.Zero）; 
 PostMessage的（this.Handle，WM_KEYUP，（IntPtr的）键，IntPtr.Zero）; 
} 
 
私人无效SendChar（INT键）
 {
 // KEYDOWN的wParam值量0x020不到WM_CHAR的wParam 
 PostMessage的（this.Handle， WM_KEYDOWN，（IntPtr的）（键 - 量0x020），IntPtr.Zero）; 
 SendMessage函数（this.Handle，WM_KEYDOWN，（IntPtr的）（键 - 量0x020），IntPtr.Zero）; 
 PostMessage的（this.Handle，WM_CHAR，（IntPtr的）键，IntPtr.Zero）; 
 SendMessage函数（this.Handle，WM_CHAR，（IntPtr的）键，IntPtr.Zero）; 
 PostMessage的（this.Handle，WM_KEYUP，（IntPtr的）（键 - 量0x020），IntPtr.Zero）; 
} 
  

解决方案

首先我sugestü有WebBrownser文件句柄：

  IntPtr的PControl则; 
 IntPtr的pControl2; 
 PControl则= FindWindowEx（WebWindow.Handle，IntPtr.Zero，壳牌嵌入，IntPtr.Zero）; 
 PControl则= FindWindowEx（PControl则，IntPtr.Zero，壳牌DocObject的视图，IntPtr.Zero）; 
 PControl则= FindWindowEx（PControl则，IntPtr.Zero，互联网Explorer_Server，IntPtr.Zero）; 
 pControl2 = FindWindowEx（PControl则，IntPtr.Zero，MacromediaFlashPlayerActiveX，IntPtr.Zero）; 
 
如果（pControl2 = IntPtr.Zero！）
 PControl则= pControl2; 
中断; 
返回PControl则; 
  

使用该句柄来发送关键信息。

什么即时通讯做personnally是我送一个点击该处理在框的位置，然后把我的钥匙

  PostMessage的（PControl则，（UINT）MouseMessages.WM_MOUSEMOVE，0，MAKELPARAM（XX，XY））; 
 PostMessage的（PControl则，（UINT）MouseMessages.WM_LBUTTONDOWN，0，MAKELPARAM（x.x表示，X.Y））; 
 PostMessage的（PControl则，（UINT）MouseMessages.WM_LBUTTONUP，0，MAKELPARAM（x.x表示，X.Y））; 
  

像这样MAKELPARAM：

 私人诠释MAKELPARAM（INT p，INT P_2）
 {
回报率（（P_2<< 16）|（p&安培; 0xFFFF的））; 
} 
  

有一件事我看到非Flash文档的工作发现是发送WM_CHAR只有工作。

有了这一切你不必须有你的窗口焦点

我希望它能帮助：）

I am trying to auto fill in values in the C# webbrowser control and tab and enter and press up and down to move through the fields.

Here is my PInvoke and wrapper functions. I used Spy++ to get these in Internet Explorer. Does anyone see anything wrong with my definitions? I want to use Send and Post message instead of SendInput because I don't want to have to focus the window...

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool PostMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);

    [DllImport("user32.dll")]
    static extern int SendMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);

    const uint WM_KEYDOWN = 0x0100;
    const uint WM_KEYUP = 0x0101;
    const uint WM_CHAR = 0x0102;
    const int VK_TAB = 0x09;
    const int VK_ENTER = 0x0D;
    const int VK_UP = 0x26;
    const int VK_DOWN = 0x28;
    const int VK_RIGHT = 0x27;

    //According to SPY++ in IE

    //ENTER key is
    // P KEYDOWN
    // P CHAR
    // S CHAR
    // P KEY_UP

    //TAB key is
    // P KEYDOWN
    // P KEYUP

    //DOWN, UP, RIGHT, LEFT is
    // P KEYDOWN
    // S KEYDOWN
    // P KEYUP

    //Letters is
    // P KEYDOWN
    // S KEYDOWN
    // P CHAR
    // S CHAR
    // P KEYUP

    private void SendEnter()
    {
        PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)VK_ENTER, IntPtr.Zero);
        PostMessage(this.Handle, WM_CHAR, (IntPtr)VK_ENTER, IntPtr.Zero);
        SendMessage(this.Handle, WM_CHAR, (IntPtr)VK_ENTER, IntPtr.Zero);
        PostMessage(this.Handle, WM_KEYUP, (IntPtr)VK_ENTER, IntPtr.Zero);
    }

    private void SendTab()
    {
        PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)VK_TAB, IntPtr.Zero);
        PostMessage(this.Handle, WM_KEYUP, (IntPtr)VK_TAB, IntPtr.Zero);
    }


    private void SendArrowKey(int key)
    {
        PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)key, IntPtr.Zero);
        SendMessage(this.Handle, WM_KEYDOWN, (IntPtr)key, IntPtr.Zero);
        PostMessage(this.Handle, WM_KEYUP, (IntPtr)key, IntPtr.Zero);
    }

    private void SendChar(int key)
    {
        //Keydown wParam values are 0x020 less than WM_CHAR wParam
        PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)(key - 0x020), IntPtr.Zero);
        SendMessage(this.Handle, WM_KEYDOWN, (IntPtr)(key - 0x020), IntPtr.Zero);
        PostMessage(this.Handle, WM_CHAR, (IntPtr)key, IntPtr.Zero);
        SendMessage(this.Handle, WM_CHAR, (IntPtr)key, IntPtr.Zero);
        PostMessage(this.Handle, WM_KEYUP, (IntPtr)(key - 0x020), IntPtr.Zero);
    }

解决方案

First of all i sugest u to have the handle of the WebBrownser document :

        IntPtr pControl; 
        IntPtr pControl2;
        pControl = FindWindowEx(WebWindow.Handle, IntPtr.Zero, "Shell Embedding", IntPtr.Zero);
        pControl = FindWindowEx(pControl, IntPtr.Zero, "Shell DocObject View", IntPtr.Zero);
        pControl = FindWindowEx(pControl, IntPtr.Zero, "Internet Explorer_Server", IntPtr.Zero);
        pControl2 = FindWindowEx(pControl, IntPtr.Zero, "MacromediaFlashPlayerActiveX", IntPtr.Zero);

         if (pControl2 != IntPtr.Zero)
             pControl = pControl2;
             break;
        return pControl;

Use that handle to send your key message.

What im doing personnally is that i send a click to that Handle at the position of the box and then send my keys

        PostMessage(pControl , (uint)MouseMessages.WM_MOUSEMOVE, 0, MAKELPARAM(x.X, x.Y));
        PostMessage(pControl , (uint)MouseMessages.WM_LBUTTONDOWN, 0, MAKELPARAM(x.X, x.Y));
        PostMessage(pControl , (uint)MouseMessages.WM_LBUTTONUP, 0, MAKELPARAM(x.X, x.Y));

with MAKELPARAM like this :

    private int MAKELPARAM(int p, int p_2)
    {
        return ((p_2 << 16) | (p & 0xFFFF));
    }

The one thing i saw that work find on non flash document is to send WM_CHAR only work.

With all this u don't have to have your window focus

I hope it help :)

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