fixed function signature.

synergy/CXWindowsClipboard.cpp

@@ -14,9 +14,10 @@ CXWindowsClipboard::~CXWindowsClipboard()
 {
 }
 
-void					CXWindowsClipboard::open()
+bool					CXWindowsClipboard::open()
 {
 	log((CLOG_INFO "open clipboard"));
+	return true;
 }
 
 void					CXWindowsClipboard::close()

synergy/CXWindowsClipboard.h

@@ -9,7 +9,7 @@ class CXWindowsClipboard : public IClipboard {
 	virtual ~CXWindowsClipboard();
 
 	// IClipboard overrides
-	virtual void		open();
+	virtual bool		open();
 	virtual void		close();
 	virtual void		add(EFormat, const CString& data);
 	virtual bool		has(EFormat) const;