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99 lines
2.9 KiB
99 lines
2.9 KiB
/*************************************************************************************
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Extended WPF Toolkit
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Copyright (C) 2007-2013 Xceed Software Inc.
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This program is provided to you under the terms of the Microsoft Public
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License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
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For more features, controls, and fast professional support,
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pick up the Plus Edition at http://xceed.com/wpf_toolkit
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Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
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***********************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading;
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namespace Xceed.Wpf.AvalonDock.Controls
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{
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class FocusChangeEventArgs : EventArgs
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{
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public FocusChangeEventArgs(IntPtr gotFocusWinHandle, IntPtr lostFocusWinHandle)
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{
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GotFocusWinHandle = gotFocusWinHandle;
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LostFocusWinHandle = lostFocusWinHandle;
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}
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public IntPtr GotFocusWinHandle
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{
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get;
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private set;
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}
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public IntPtr LostFocusWinHandle
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{
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get;
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private set;
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}
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}
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class WindowHookHandler
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{
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public WindowHookHandler()
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{
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}
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IntPtr _windowHook;
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Win32Helper.HookProc _hookProc;
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public void Attach()
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{
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_hookProc = new Win32Helper.HookProc(this.HookProc);
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_windowHook = Win32Helper.SetWindowsHookEx(
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Win32Helper.HookType.WH_CBT,
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_hookProc,
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IntPtr.Zero,
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(int)Win32Helper.GetCurrentThreadId());
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}
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public void Detach()
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{
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Win32Helper.UnhookWindowsHookEx(_windowHook);
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}
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public int HookProc(int code, IntPtr wParam, IntPtr lParam)
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{
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if (code == Win32Helper.HCBT_SETFOCUS)
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{
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if (FocusChanged != null)
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FocusChanged(this, new FocusChangeEventArgs(wParam, lParam));
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}
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else if (code == Win32Helper.HCBT_ACTIVATE)
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{
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if (_insideActivateEvent.CanEnter)
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{
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using (_insideActivateEvent.Enter())
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{
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//if (Activate != null)
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// Activate(this, new WindowActivateEventArgs(wParam));
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}
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}
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}
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return Win32Helper.CallNextHookEx(_windowHook, code, wParam, lParam);
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}
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public event EventHandler<FocusChangeEventArgs> FocusChanged;
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//public event EventHandler<WindowActivateEventArgs> Activate;
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ReentrantFlag _insideActivateEvent = new ReentrantFlag();
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}
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}
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