问题描述
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());
解决方法
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();