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path: root/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/RestartingSystemViewVM.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.PPC.Common;
using Tango.PPC.Common.Application;
using Tango.PPC.Common.Navigation;
using Tango.PPC.Common.OS;

namespace Tango.PPC.UI.ViewModels
{
    public class RestartingSystemViewVM : PPCViewModel
    {
        private IOperationSystemManager _os;
        private INavigationManager _navigationManager;

        public RestartingSystemViewVM(IPPCApplicationManager applicationManager, IOperationSystemManager operationSystemManager, INavigationManager navigationManager)
        {
            _navigationManager = navigationManager;
            _os = operationSystemManager;
            applicationManager.SystemRestartRequired += ApplicationManager_SystemRestartRequired;
        }

        private void ApplicationManager_SystemRestartRequired(object sender, EventArgs e)
        {
            InvokeUI(() =>
            {
                _navigationManager.NavigateTo(NavigationView.RestartingSystemView);
            });
        }

        public async override void OnNavigatedTo()
        {
            base.OnNavigatedTo();
            await Task.Delay(2000);
            _os.Restart();
        }

        public override void OnApplicationStarted()
        {

        }
    }
}
(IntPtr hwndControl, uint Msg, int wParam, StringBuilder strBuffer); // get text [DllImport("user32.dll", EntryPoint = "SendMessage", CharSet = CharSet.Auto)] static extern int SendMessage(IntPtr hwndControl, uint Msg, int wParam, int lParam); // text length [DllImport("user32.dll", EntryPoint = "FindWindowEx", CharSet = CharSet.Auto)] static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow); [DllImport("user32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd); [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] static extern IntPtr SendMessageTimeout(IntPtr windowHandle, uint Msg, IntPtr wParam, IntPtr lParam, SendMessageTimeoutFlags flags, uint timeout, out IntPtr result); [Flags] enum SendMessageTimeoutFlags : uint { SMTO_NORMAL = 0x0, SMTO_BLOCK = 0x1, SMTO_ABORTIFHUNG = 0x2, SMTO_NOTIMEOUTIFNOTHUNG = 0x8, SMTO_ERRORONEXIT = 0x20 } private static List<IntPtr> GetAllChildrenHandles(IntPtr hParent, int maxCount) { List<IntPtr> result = new List<IntPtr>(); int ct = 0; IntPtr prevChild = IntPtr.Zero; IntPtr currChild = IntPtr.Zero; while (true && ct < maxCount) { Debug.WriteLine("FindWindowEx: " + hParent); currChild = FindWindowEx(hParent, prevChild, null, null); if (currChild == IntPtr.Zero) break; result.Add(currChild); prevChild = currChild; ++ct; } return result; } private static int GetCaptionTextLength(IntPtr hTextBox) { // helper for GetCaptionText uint WM_GETTEXTLENGTH = 0x000E; IntPtr result = IntPtr.Zero; SendMessageTimeout(hTextBox, WM_GETTEXTLENGTH, IntPtr.Zero, IntPtr.Zero, SendMessageTimeoutFlags.SMTO_ABORTIFHUNG, 1000, out result); return (int)result; } private static string GetCaptionText(IntPtr hTextBox) { uint WM_GETTEXT = 0x000D; int len = GetCaptionTextLength(hTextBox); if (len <= 0) return null; // no text. consider empty string instead. StringBuilder sb = new StringBuilder(len + 1); SendMessage(hTextBox, WM_GETTEXT, len + 1, sb); return sb.ToString(); } public IntPtr Handle { get; set; } public int Level { get; set; } public String Caption { get; set; } public WindowInfo Parent { get; set; } public List<WindowInfo> Children { get; set; } public WindowInfo() { Children = new List<WindowInfo>(); } public void SetActive() { SetForegroundWindow(Handle); } public void PressKey(KeyboardInput.SpecialKeys key) { SetActive(); Keyboard.Instance.PressSpecialKey(key); } public override string ToString() { return Caption; } public static List<WindowInfo> GetAllWindows() { List<WindowInfo> windows = new List<WindowInfo>(); IntPtr hDesktop = GetDesktopWindow(); WindowInfo desktop = new WindowInfo(); desktop.Handle = hDesktop; desktop.Level = 0; desktop.Caption = "(Desktop)"; desktop.Parent = null; windows.Add(desktop); try { FillWindows(desktop, desktop.Children); } catch (Exception ex) { Debug.WriteLine(ex.ToString()); } return windows; } private static void FlattenWindows(WindowInfo parent, List<WindowInfo> windows) { windows.Add(parent); foreach (var window in parent.Children) { windows.Add(window); FlattenWindows(window, windows); } } public static WindowInfo GetWindow(String title) { var windows = GetAllWindows(); List<WindowInfo> flatList = new List<WindowInfo>(); FlattenWindows(windows.First(), flatList); return flatList.FirstOrDefault(x => x.Caption == title); } private static void FillWindows(WindowInfo parent, List<WindowInfo> windows) { foreach (var handle in GetAllChildrenHandles(parent.Handle, 5000)) { WindowInfo child = new WindowInfo(); child.Handle = handle; child.Level = parent.Level + 1; child.Caption = GetCaptionText(handle); child.Parent = parent; if (child.Caption != null) { Debug.WriteLine(parent.Caption + " | " + child.Caption); windows.Add(child); } FillWindows(child, child.Children); } } } }