Initial commit: ROW Client source code

Game client codebase including:
- CharacterActionControl: Character and creature management
- GlobalScript: Network, items, skills, quests, utilities
- RYLClient: Main client application with GUI and event handlers
- Engine: 3D rendering engine (RYLGL)
- MemoryManager: Custom memory allocation
- Library: Third-party dependencies (DirectX, boost, etc.)
- Tools: Development utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Library/dxx8/samples/Multimedia/DirectShow/BaseClasses/sysclock.h

@@ -0,0 +1,39 @@
+//------------------------------------------------------------------------------
+// File: SysClock.h
+//
+// Desc: DirectShow base classes - defines a system clock implementation of
+//       IReferenceClock.
+//
+// Copyright (c) 1992-2001 Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------------------------
+
+
+#ifndef __SYSTEMCLOCK__
+#define __SYSTEMCLOCK__
+
+//
+// Base clock.  Uses timeGetTime ONLY
+// Uses most of the code in the base reference clock.
+// Provides GetTime
+//
+
+class CSystemClock : public CBaseReferenceClock, public IAMClockAdjust, public IPersist
+{
+public:
+    // We must be able to create an instance of ourselves
+    static CUnknown * WINAPI CreateInstance(LPUNKNOWN pUnk, HRESULT *phr);
+    CSystemClock(TCHAR *pName, LPUNKNOWN pUnk, HRESULT *phr);
+
+    DECLARE_IUNKNOWN
+
+    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid,void ** ppv);
+
+    // Yield up our class id so that we can be persisted
+    // Implement required Ipersist method
+    STDMETHODIMP GetClassID(CLSID *pClsID);
+
+    //  IAMClockAdjust methods
+    STDMETHODIMP SetClockDelta(REFERENCE_TIME rtDelta);
+}; //CSystemClock
+
+#endif /* __SYSTEMCLOCK__ */