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C:是否可以将参数挂钩到现有进程。示例启动iexplore.exe,然后使其导航到网站

process c#

balalakshmi · 技术社区 · 16 年前

调用Internet Explorer的代码如下

 System.Diagnostics.Process oProcess = new System.Diagnostics.Process();
                oProcess.StartInfo.FileName = "C:\\Program Files\\Internet Explorer\\iexplore.exe";
                oProcess.Start();

一旦启动此进程,是否可以为其分配URL?

4 回复 | 直到 16 年前

adriaanp 16 年前

通过使用interop,这看起来是可能的。看看这个 codeproject project 它做你想做的。

Darin Dimitrov 16 年前

Process.Start(
    "C:\\Program Files\\Internet Explorer\\iexplore.exe", 
    "http://www.google.com"
);

或使用默认浏览器打开:

Process.Start("http://www.google.com");

Sharique 16 年前

是的,你能做到。必须提供URL作为参数。看一看 this .

Process.Start("IExplore.exe", "www.northwindtraders.com");

kicsit 16 年前

一般来说,不可能“将参数挂钩到现有进程”。您将需要对所讨论的应用程序有一定的了解,并实现逐案解决方案。

但是,有了IE(如您的示例中所示),您就很幸运了,因为它可以通过COM进行控制。请参阅Adriaanp的答案以获得干净的解决方案。

同样,如果您今天正好处于一种黑客的情绪中,可能会有一个更简单的实现解决方案。这绝不是正确的方法,也不能保证在任何情况下都能工作,但是我已经看到在生产代码中使用了类似的方法。

我们的想法是使用win-api来查找浏览器窗口,找到地址栏并输入你的URL——很便宜,不是吗?!这样就消除了所有的COM依赖关系,并且很快就会开始滚动。

这里有一些代码(只有一个公共方法 DoPopup ,使用URL和浏览器窗口标题的某些部分调用(如果愿意,可以使用其他方法获取浏览器窗口的句柄):

static class PopupHelper
{
    class SearchData
    {
        public readonly String Criterion;
        public IntPtr ResultHandle;

        public SearchData(String criterion)
        {
            Criterion = criterion;
            ResultHandle = IntPtr.Zero;
        }
    }

    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool EnumWindows(EnumWindowsProc callback, ref SearchData data);

    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool EnumChildWindows(IntPtr window, EnumWindowsProc callback, ref SearchData data);

    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    static extern int GetClassName(IntPtr handle, StringBuilder result, int length);

    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    static extern int GetWindowText(IntPtr handle, StringBuilder result, int length);

    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool SetForegroundWindow(IntPtr windowHandle);

    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    static extern IntPtr SendMessage(IntPtr windowHandle, UInt32 Msg, IntPtr wParam, StringBuilder lParam);

    delegate bool EnumWindowsProc(IntPtr hWnd, ref SearchData data);

    static IntPtr SearchForWindowByTitle(string title)
    {
        SearchData searchData = new SearchData(title);

        EnumWindows(new EnumWindowsProc(delegate(IntPtr handle, ref SearchData searchDataRef)
        {
            StringBuilder candidate = new StringBuilder(1024);
            GetWindowText(handle, candidate, candidate.Capacity);
            if (!candidate.ToString().Contains(searchDataRef.Criterion)) { return true; }
            searchDataRef.ResultHandle = handle;
            return false;
        }), ref searchData);

        return searchData.ResultHandle;
    }

    static IntPtr SearchForChildWindowByClassName(IntPtr parent, string className)
    {
        SearchData searchData = new SearchData(className);

        EnumChildWindows(parent, new EnumWindowsProc(delegate(IntPtr handle, ref SearchData searchDataRef)
        {
            StringBuilder candidate = new StringBuilder(64);
            GetClassName(handle, candidate, candidate.Capacity);
            if (candidate.ToString() != searchDataRef.Criterion) { return true; }
            searchDataRef.ResultHandle = handle;
            return false;

        }), ref searchData);

        return searchData.ResultHandle;
    }

    static void NavigateToUrlInExistingBrowserWindow(IntPtr browserWindowHandle, IntPtr addressEditBoxHandle, string url)
    {
        StringBuilder addressBuilder = new StringBuilder(url);

        const uint WM_SETTEXT = 0x000C;
        const uint WM_KEYDOWN = 0x0100;
        const uint RETURN_KEY = 13;

        SendMessage(addressEditBoxHandle, WM_SETTEXT, IntPtr.Zero, addressBuilder);
        SendMessage(addressEditBoxHandle, WM_KEYDOWN, new IntPtr(RETURN_KEY), null);

        SetForegroundWindow(browserWindowHandle);
    }

    public static void DoPopup(string url, string captionPart)
    {
        IntPtr windowHandle = SearchForWindowByTitle(captionPart);
        if (windowHandle != IntPtr.Zero)
        {
            IntPtr addressEditBoxHandle = SearchForChildWindowByClassName(windowHandle, "Edit");
            if (addressEditBoxHandle != IntPtr.Zero)
            {
                NavigateToUrlInExistingBrowserWindow(windowHandle, addressEditBoxHandle, url);
                return;
            }
        }

        Process.Start("iexplore", url);
    }
}