new mouse key hook

Common/MouseKeyHook/WinApi/ThreadNativeMethods.cs

@@ -0,0 +1,42 @@
+// This code is distributed under MIT license. 
+// Copyright (c) 2015 George Mamaladze
+// See license.txt or https://mit-license.org/
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace Gma.System.MouseKeyHook.WinApi
+{
+    internal static class ThreadNativeMethods
+    {
+        /// <summary>
+        ///     Retrieves the unmanaged thread identifier of the calling thread.
+        /// </summary>
+        /// <returns></returns>
+        [DllImport("kernel32")]
+        internal static extern int GetCurrentThreadId();
+
+        /// <summary>
+        ///     Retrieves a handle to the foreground window (the window with which the user is currently working).
+        ///     The system assigns a slightly higher priority to the thread that creates the foreground window than it does to
+        ///     other threads.
+        /// </summary>
+        /// <returns></returns>
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        internal static extern IntPtr GetForegroundWindow();
+
+        /// <summary>
+        ///     Retrieves the identifier of the thread that created the specified window and, optionally, the identifier of the
+        ///     process that
+        ///     created the window.
+        /// </summary>
+        /// <param name="handle">A handle to the window. </param>
+        /// <param name="processId">
+        ///     A pointer to a variable that receives the process identifier. If this parameter is not NULL,
+        ///     GetWindowThreadProcessId copies the identifier of the process to the variable; otherwise, it does not.
+        /// </param>
+        /// <returns>The return value is the identifier of the thread that created the window. </returns>
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        internal static extern int GetWindowThreadProcessId(IntPtr handle, out int processId);
+    }
+}