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- /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
- *
- * This 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 software 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 software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- // -=- WMHooks.h
-
- #ifndef __RFB_WIN32_WM_HOOKS_H__
- #define __RFB_WIN32_WM_HOOKS_H__
-
- #include <windows.h>
- #include <rfb/UpdateTracker.h>
- #include <rdr/Exception.h>
- #include <rfb_win32/Win32Util.h>
-
- namespace rfb {
-
- namespace win32 {
-
- // -=- WMHooks
- // Uses the wm_hooks DLL to intercept window messages, to get _hints_ as
- // to what may have changed on-screen. Updates are notified via a Win32
- // event, and retrieved using the getUpdates method, which is thread-safe.
- class WMHooks {
- public:
- WMHooks();
- ~WMHooks();
-
- // Specify the event object to notify. Starts the hook subsystem if it is
- // not already active, and returns false if the hooks fail to start.
- bool setEvent(HANDLE updateEvent);
-
- // Copies any new updates to the UpdateTracker. Returns true if new updates
- // were added, false otherwise.
- bool getUpdates(UpdateTracker* ut);
-
- #ifdef _DEBUG
- // Get notifications of any messages in the given range, to any hooked window
- void setDiagnosticRange(UINT min, UINT max);
- #endif
-
- // * INTERNAL NOTIFICATION FUNCTION *
- void NotifyHooksRegion(const Region& r);
- protected:
- HANDLE updateEvent;
- bool updatesReady;
- SimpleUpdateTracker updates;
- };
-
- // -=- Support for filtering out local input events while remote connections are
- // active. Implemented using SetWindowsHookEx for portability.
- class WMBlockInput {
- public:
- WMBlockInput();
- ~WMBlockInput();
- bool blockInputs(bool block);
- protected:
- bool active;
- };
-
- };
-
- };
-
- #endif // __RFB_WIN32_WM_HOOKS_H__
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