initial commit
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i2p
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using Pulsar.Client.Utilities;
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using System;
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using System.Drawing;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace Pulsar.Client.Helper
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{
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public static class NativeMethodsHelper
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{
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private const int INPUT_MOUSE = 0;
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private const int INPUT_KEYBOARD = 1;
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private const uint MOUSEEVENTF_LEFTDOWN = 0x0002;
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private const uint MOUSEEVENTF_LEFTUP = 0x0004;
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private const uint MOUSEEVENTF_RIGHTDOWN = 0x0008;
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private const uint MOUSEEVENTF_RIGHTUP = 0x0010;
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private const uint MOUSEEVENTF_WHEEL = 0x0800;
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private const uint KEYEVENTF_KEYDOWN = 0x0000;
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private const uint KEYEVENTF_KEYUP = 0x0002;
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public const uint SWP_NOZORDER = 0x0004;
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public const uint SWP_NOSIZE = 0x0001;
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public const uint SWP_SHOWWINDOW = 0x0040;
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[DllImport("user32.dll")]
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public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
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[DllImport("user32.dll", SetLastError = true)]
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public static extern bool SetWindowPos(
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IntPtr hWnd, IntPtr hWndInsertAfter,
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int X, int Y, int cx, int cy, uint uFlags);
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public static void SetWindowPosition(IntPtr hWnd, int x, int y, int width, int height)
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{
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const uint SWP_NOZORDER = 0x0004;
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const uint SWP_SHOWWINDOW = 0x0040;
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SetWindowPos(hWnd, IntPtr.Zero, x, y, width, height, SWP_NOZORDER | SWP_SHOWWINDOW);
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}
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public static uint GetLastInputInfoTickCount()
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{
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NativeMethods.LASTINPUTINFO lastInputInfo = new NativeMethods.LASTINPUTINFO();
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lastInputInfo.cbSize = (uint)Marshal.SizeOf(lastInputInfo);
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lastInputInfo.dwTime = 0;
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NativeMethods.GetLastInputInfo(ref lastInputInfo);
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return lastInputInfo.dwTime;
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}
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public static void DoMouseLeftClick(Point p, bool isMouseDown)
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{
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NativeMethods.INPUT[] inputs = {
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new NativeMethods.INPUT
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{
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type = INPUT_MOUSE,
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u = new NativeMethods.InputUnion
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{
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mi = new NativeMethods.MOUSEINPUT
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{
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dx = p.X,
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dy = p.Y,
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mouseData = 0,
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dwFlags = isMouseDown ? MOUSEEVENTF_LEFTDOWN : MOUSEEVENTF_LEFTUP,
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time = 0,
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dwExtraInfo = NativeMethods.GetMessageExtraInfo()
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}
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}
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}
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};
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NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(NativeMethods.INPUT)));
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}
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/// <summary>
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/// Moves a window to the specified screen bounds.
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/// </summary>
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/// <param name="hWnd">Handle to the window.</param>
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/// <param name="bounds">The bounds of the target screen.</param>
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public static void MoveWindowToScreen(IntPtr hWnd, Rectangle bounds)
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{
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if (hWnd == IntPtr.Zero)
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{
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throw new ArgumentException("Window handle cannot be null.", nameof(hWnd));
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}
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bool result = NativeMethods.SetWindowPos(hWnd, IntPtr.Zero, bounds.X, bounds.Y, 0, 0, NativeMethodsHelper.SWP_NOZORDER | NativeMethodsHelper.SWP_NOSIZE);
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if (!result)
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{
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throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error(), "Failed to move window to the specified screen.");
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}
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}
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public static void DoMouseRightClick(Point p, bool isMouseDown)
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{
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NativeMethods.INPUT[] inputs = {
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new NativeMethods.INPUT
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{
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type = INPUT_MOUSE,
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u = new NativeMethods.InputUnion
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{
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mi = new NativeMethods.MOUSEINPUT
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{
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dx = p.X,
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dy = p.Y,
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mouseData = 0,
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dwFlags = isMouseDown ? MOUSEEVENTF_RIGHTDOWN : MOUSEEVENTF_RIGHTUP,
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time = 0,
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dwExtraInfo = NativeMethods.GetMessageExtraInfo()
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}
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}
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}
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};
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NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(NativeMethods.INPUT)));
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}
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public static void DoMouseMove(Point p)
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{
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NativeMethods.SetCursorPos(p.X, p.Y);
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}
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public static void DoMouseScroll(Point p, bool scrollDown)
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{
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NativeMethods.INPUT[] inputs = {
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new NativeMethods.INPUT
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{
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type = INPUT_MOUSE,
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u = new NativeMethods.InputUnion
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{
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mi = new NativeMethods.MOUSEINPUT
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{
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dx = p.X,
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dy = p.Y,
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mouseData = scrollDown ? -120 : 120,
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dwFlags = MOUSEEVENTF_WHEEL,
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time = 0,
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dwExtraInfo = NativeMethods.GetMessageExtraInfo()
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}
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}
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}
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};
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NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(NativeMethods.INPUT)));
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}
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public static void DoKeyPress(byte key, bool keyDown)
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{
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NativeMethods.INPUT[] inputs = {
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new NativeMethods.INPUT
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{
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type = INPUT_KEYBOARD,
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u = new NativeMethods.InputUnion
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{
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ki = new NativeMethods.KEYBDINPUT
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{
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wVk = key,
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wScan = 0,
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dwFlags = keyDown ? KEYEVENTF_KEYDOWN : KEYEVENTF_KEYUP,
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dwExtraInfo = NativeMethods.GetMessageExtraInfo()
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}
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}
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}
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};
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NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(NativeMethods.INPUT)));
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}
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private const int SPI_GETSCREENSAVERRUNNING = 114;
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public static bool IsScreensaverActive()
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{
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var running = IntPtr.Zero;
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if (!NativeMethods.SystemParametersInfo(
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SPI_GETSCREENSAVERRUNNING,
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0,
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ref running,
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0))
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{
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// Something went wrong (Marshal.GetLastWin32Error)
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}
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return running != IntPtr.Zero;
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}
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private const uint DESKTOP_WRITEOBJECTS = 0x0080;
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private const uint DESKTOP_READOBJECTS = 0x0001;
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private const int WM_CLOSE = 16;
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private const uint SPI_SETSCREENSAVEACTIVE = 0x0011;
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private const uint SPIF_SENDWININICHANGE = 0x0002;
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public static void DisableScreensaver()
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{
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var handle = NativeMethods.OpenDesktop("Screen-saver", 0,
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false, DESKTOP_READOBJECTS | DESKTOP_WRITEOBJECTS);
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if (handle != IntPtr.Zero)
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{
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NativeMethods.EnumDesktopWindows(handle, (hWnd, lParam) =>
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{
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if (NativeMethods.IsWindowVisible(hWnd))
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NativeMethods.PostMessage(hWnd, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
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// Continue enumeration even if it fails
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return true;
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},
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IntPtr.Zero);
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NativeMethods.CloseDesktop(handle);
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}
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else
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{
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NativeMethods.PostMessage(NativeMethods.GetForegroundWindow(), WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
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}
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// We need to restart the counter for next screensaver according to
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// https://support.microsoft.com/en-us/kb/140723
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// (this may not be needed since we simulate mouse click afterwards)
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var dummy = IntPtr.Zero;
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// Doesn't really matter if this fails
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NativeMethods.SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, 1 /* true */, ref dummy, SPIF_SENDWININICHANGE);
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}
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public static string GetForegroundWindowTitle()
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{
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StringBuilder sbTitle = new StringBuilder(1024);
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NativeMethods.GetWindowText(NativeMethods.GetForegroundWindow(), sbTitle, sbTitle.Capacity);
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return sbTitle.ToString();
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}
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}
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}
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