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/DirectInput/DIConfig/usefuldi.h

@@ -0,0 +1,39 @@
+//-----------------------------------------------------------------------------
+// File: usefuldi.h
+//
+// Desc: Contains various DInput-specific utility classes and functions
+//       to help the UI carry its operations more easily.
+//
+// Copyright (C) 1999-2001 Microsoft Corporation. All Rights Reserved.
+//-----------------------------------------------------------------------------
+
+#ifndef __USEFULDI_H__
+#define __USEFULDI_H__
+
+
+struct DIDEVOBJSTRUCT {
+	DIDEVOBJSTRUCT() : nObjects(0), pdoi(NULL) {}
+	~DIDEVOBJSTRUCT() {if (pdoi != NULL) free(pdoi);}
+	DWORD GetTypeFromObjID(DWORD);
+	int nObjects;
+	DIDEVICEOBJECTINSTANCEW *pdoi;
+	int n;
+};
+HRESULT FillDIDeviceObjectStruct(DIDEVOBJSTRUCT &os, LPDIRECTINPUTDEVICE8W pDID);
+
+LPTSTR AllocConfigureFlagStr(DWORD dwFlags);
+LPTSTR AllocActionFlagStr(DWORD dwFlags);
+LPTSTR AllocActionHowFlagStr(DWORD dwFlags);
+
+void CleanupActionFormatCopy(DIACTIONFORMATW &c);
+HRESULT CopyActionFormat(DIACTIONFORMATW &to, const DIACTIONFORMATW &from);
+LPDIACTIONFORMATW DupActionFormat(LPCDIACTIONFORMATW lpAcFor);
+void FreeActionFormatDup(LPDIACTIONFORMATW &lpAcFor);
+
+void TraceActionFormat(LPTSTR header, const DIACTIONFORMATW &acf);
+
+BOOL IsZeroOrInvalidColorSet(const DICOLORSET &);
+COLORREF D3DCOLOR2COLORREF(D3DCOLOR c);
+
+
+#endif //__USEFULDI_H__