WindowsAPI查找flash句柄问题

rcom10002 2012-07-18 08:08:09

我用下面的代码获取WebBrowser中的flash句柄，如果访问地址是“http://v.youku.com/v_show/id_XNDI4NjE4Mzk2.html”的话，代码工作正常，可以正确地返回宽和高。但如果是访问QQ游戏“http://user.qzone.qq.com/25907516/infocenter#!app=607”，获取的flash句柄对应的宽和高就是“1*1”，不是真实的宽和高。这两个地址的差别在于，优酷flash插件是直接写在HTML里的，而QQ游戏是通过HTML中的iframe嵌套进来。





private static string IES_CLASS_NAME = "Internet Explorer_Server";

private static IntPtr IES_CLASS_NAME_HWND = IntPtr.Zero;

private static string MMFPAX_CLASS_NAME = "MacromediaFlashPlayerActiveX";

private static IntPtr MMFPAX_CLASS_NAME_HWND = IntPtr.Zero;

        



private void btnInjectPlugin_Click(object sender, EventArgs e)

{

    User32.EnumChildWindows(this.browserClient.Handle, EnumChildWindowsCallBack, IntPtr.Zero);

    if (!IntPtr.Zero.Equals(IES_CLASS_NAME_HWND))

    {

        this.log("IES_CLASS_NAME_HWND is not null!");

        //User32.EnumChildWindows(IES_CLASS_NAME_HWND, EnumChildWindowsCallBack, IntPtr.Zero);

        MMFPAX_CLASS_NAME_HWND = User32.FindWindowEx(IES_CLASS_NAME_HWND, IntPtr.Zero, MMFPAX_CLASS_NAME, null);





        while (!IntPtr.Zero.Equals(MMFPAX_CLASS_NAME_HWND))

        {

            StringBuilder className = new StringBuilder(100);

            StringBuilder windowsName = new StringBuilder(100);

            User32.GetClassName(MMFPAX_CLASS_NAME_HWND, className, className.Capacity);

            User32.GetWindowText(MMFPAX_CLASS_NAME_HWND, windowsName, windowsName.Capacity);

            RECT winRect = new RECT();

            User32.GetWindowRect(MMFPAX_CLASS_NAME_HWND, ref winRect);

            RECT cltRect = new RECT();

            User32.GetClientRect(MMFPAX_CLASS_NAME_HWND, out cltRect);



            INSTANCE.log("Handle:" + MMFPAX_CLASS_NAME_HWND + "|windowsname:" + windowsName + "|classname:" + className + "|width:" + (winRect.right - winRect.left) + "/" + (cltRect.right - cltRect.left) + "|height:" + (winRect.bottom - winRect.top) + "/" + (cltRect.bottom - cltRect.top));

            if (winRect.right - winRect.left > 400)

            {

                break;

            }

            MMFPAX_CLASS_NAME_HWND = User32.FindWindowEx(IES_CLASS_NAME_HWND, MMFPAX_CLASS_NAME_HWND, MMFPAX_CLASS_NAME, null);

        }

    }

    User32.PostMessage(MMFPAX_CLASS_NAME_HWND, (uint)MouseMessages.WM_RBUTTONDOWN, IntPtr.Zero, (IntPtr)((0 << 16) | (0 & 0xffff)));

    User32.PostMessage(MMFPAX_CLASS_NAME_HWND, (uint)MouseMessages.WM_RBUTTONUP, IntPtr.Zero, (IntPtr)((0 << 16) | (0 & 0xffff)));

}