Initial commit of the synergy trunk sources from sf.net

lib/platform/CMSWindowsScreenSaver.h

@@ -0,0 +1,92 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2002 Chris Schoeneman
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package 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.
+ */
+
+#ifndef CMSWINDOWSSCREENSAVER_H
+#define CMSWINDOWSSCREENSAVER_H
+
+#include "IScreenSaver.h"
+#include "CString.h"
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+class CThread;
+
+//! Microsoft windows screen saver implementation
+class CMSWindowsScreenSaver : public IScreenSaver {
+public:
+	CMSWindowsScreenSaver();
+	virtual ~CMSWindowsScreenSaver();
+
+	//! @name manipulators
+	//@{
+
+	//! Check if screen saver started
+	/*!
+	Check if the screen saver really started.  Returns false if it
+	hasn't, true otherwise.  When the screen saver stops, \c msg will
+	be posted to the current thread's message queue with the given
+	parameters.
+	*/
+	bool				checkStarted(UINT msg, WPARAM, LPARAM);
+
+	//@}
+
+	// IScreenSaver overrides
+	virtual void		enable();
+	virtual void		disable();
+	virtual void		activate();
+	virtual void		deactivate();
+	virtual bool		isActive() const;
+
+private:
+	class CFindScreenSaverInfo {
+	public:
+		HDESK			m_desktop;
+		HWND			m_window;
+	};
+
+	static BOOL CALLBACK	findScreenSaverFunc(HWND hwnd, LPARAM lParam);
+	static BOOL CALLBACK	killScreenSaverFunc(HWND hwnd, LPARAM lParam);
+
+	DWORD				findScreenSaver();
+	void				watchDesktop();
+	void				watchProcess(HANDLE process);
+	void				unwatchProcess();
+	void				watchDesktopThread(void*);
+	void				watchProcessThread(void*);
+
+	void				setSecure(bool secure, bool saveSecureAsInt);
+	bool				isSecure(bool* wasSecureAnInt) const;
+
+private:
+	bool				m_is95Family;
+	bool				m_is95;
+	bool				m_isNT;
+	BOOL				m_wasEnabled;
+	bool				m_wasSecure;
+	bool				m_wasSecureAnInt;
+
+	HANDLE				m_process;
+	CThread*			m_watch;
+	DWORD				m_threadID;
+	UINT				m_msg;
+	WPARAM				m_wParam;
+	LPARAM				m_lParam;
+
+	// checkActive state.  true if the screen saver is being watched
+	// for deactivation (and is therefore active).
+	bool				m_active;
+};
+
+#endif