LowLevelHook.h
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// TODO: add Copyright?
//
// The VNC system is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
//
// If the source code for the VNC system is not available from the place
// whence you received this file, check http://www.uk.research.att.com/vnc or contact
// the authors on vnc@uk.research.att.com for information on obtaining it.
// This is the source for the low-level keyboard hook, which allows intercepting and sending
// special keys (such as ALT,CTRL, ALT+TAB, etc) to the VNCServer side.
// written by Assaf Gordon (Assaf@mazleg.com), 10/9/2003
#pragma once
//#define WINVER 0x0400
//#define _WIN32_WINNT 0x0400
#include <windows.h>
class LowLevelHook
{
public:
static BOOL Initialize(HWND hwndMain);
static BOOL Release();
private:
static BOOL GetScrollLockState() ;
static LRESULT CALLBACK VncLowLevelKbHookProc(INT nCode, WPARAM wParam, LPARAM lParam);
static HWND g_hwndVNCViewer;
static DWORD g_VncProcessID;
static BOOL g_fHookActive;
static BOOL g_fGlobalScrollLock;
static HHOOK g_HookID;
};