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/Demos/Duel/dputil.h

@@ -0,0 +1,41 @@
+//-----------------------------------------------------------------------------
+// File: DPUtil.h
+//
+// Desc: Communication routines include file
+//
+// Copyright (C) 1995-2001 Microsoft Corporation. All Rights Reserved.
+//-----------------------------------------------------------------------------
+#define IDIRECTPLAY2_OR_GREATER
+#include <dplay.h>
+
+
+//-----------------------------------------------------------------------------
+// Prototypes
+//-----------------------------------------------------------------------------
+HRESULT DPUtil_FreeDirectPlay();
+HRESULT DPUtil_InitDirectPlay( VOID* pCon );
+HRESULT DPUtil_CreatePlayer( DPID* ppidID, LPTSTR pPlayerName, HANDLE hEvent, 
+                           VOID* pData, DWORD dwDataSize );
+HRESULT DPUtil_CreateSession( TCHAR* strSessionName );
+HRESULT DPUtil_DestroyPlayer( DPID pid );
+HRESULT DPUtil_EnumPlayers( GUID* pSessionGuid,
+                          LPDPENUMPLAYERSCALLBACK2 lpEnumCallback, 
+                          VOID* pContext, DWORD dwFlags );
+HRESULT DPUtil_EnumSessions( DWORD dwTimeout,
+                           LPDPENUMSESSIONSCALLBACK2 lpEnumCallback, 
+                           VOID* pContext, DWORD dwFlags );
+HRESULT DPUtil_GetSessionDesc();
+BOOL    DPUtil_IsDPlayInitialized();
+HRESULT DPUtil_OpenSession( GUID* pSessionGuid );
+HRESULT DPUtil_Receive( DPID* pidFrom, DPID* pidTo, DWORD dwFlags, VOID* pData, 
+                      DWORD* pdwDataSize );
+HRESULT DPUtil_Release();
+HRESULT DPUtil_Send( DPID idFrom, DPID idTo, DWORD dwFlags, VOID* pData, 
+                   DWORD dwDataSize );
+HRESULT DPUtil_SetPlayerLocalData( DPID pid, VOID* pData, DWORD dwSize );
+HRESULT DPUtil_GetPlayerLocalData( DPID pid, VOID* pData, DWORD* pdwDataSize );
+
+
+
+
+