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/Players/PlayWndASF/keyprovider.h

@@ -0,0 +1,27 @@
+//------------------------------------------------------------------------------
+// File: keyprovider.h
+//
+// Desc: DirectShow sample code - describes CKeyProvider helper class
+//
+// Copyright (c) 1999-2001, Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------------------------
+
+
+class CKeyProvider : public IServiceProvider
+{
+    public:
+        //
+        // IUnknown interface
+        //
+        STDMETHODIMP QueryInterface(REFIID riid, void ** ppv);
+        STDMETHODIMP_(ULONG) AddRef();
+        STDMETHODIMP_(ULONG) Release();
+
+        CKeyProvider();
+
+        // IServiceProvider
+        STDMETHODIMP QueryService(REFIID siid, REFIID riid, void **ppv);
+
+    private:
+        ULONG m_cRef;
+};