获取隐藏窗口的 hWnd

Question

如何获得隐藏窗口的 hWnd？根据我的配置，它返回 0。

这是我尝试过的：

ProcessStartInfo startInfo = new ProcessStartInfo(path);
startInfo.WindowStyle = ProcessWindowStyle.Hidden;

Process process = Process.Start(startInfo);
process.WaitForInputIdle();

MessageBox.Show(process.MainWindowHandle.ToString());

Answer 1

这对我有用：

delegate bool EnumThreadDelegate(IntPtr hWnd, IntPtr lParam);

[DllImport("user32.dll")]
static extern bool EnumThreadWindows(int dwThreadId, EnumThreadDelegate lpfn,
    IntPtr lParam);

static IEnumerable<IntPtr> EnumerateProcessWindowHandles(int processId)
{
    var handles = new List<IntPtr>();

    foreach (ProcessThread thread in Process.GetProcessById(processId).Threads)
        EnumThreadWindows(thread.Id, 
            (hWnd, lParam) => { handles.Add(hWnd); return true; }, IntPtr.Zero);

    return handles;
}

用法：

ProcessStartInfo startInfo = new ProcessStartInfo(path);
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
Process process = Process.Start(startInfo);
process.WaitForInputIdle();

IntPtr WindowHandle = EnumerateProcessWindowHandles(process.Id).First();