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/DMO/GargleDMO/igargle.h

@@ -0,0 +1,59 @@
+//------------------------------------------------------------------------------
+// File: IGargle.h
+//
+// Desc: DirectShow sample code - custom interface to allow the user
+//       to adjust the modulation rate.  It defines the interface between
+//       the user interface component (the property sheet) and the filter
+//       itself.  This interface is exported by the code in Gargle.cpp and
+//       is used by the code in GargProp.cpp.
+//
+// Copyright (c) 1992-2001 Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------------------------
+
+
+#ifndef __IGARGLEDMO__
+#define __IGARGLEDMO__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+//
+// IGargleDMOSample's GUID
+//
+// {9AE9B11C-4EF8-42bc-9484-65EA0008964F}
+DEFINE_GUID(IID_IGargleDMOSample, 
+0x9ae9b11c, 0x4ef8, 0x42bc, 0x94, 0x84, 0x65, 0xea, 0x0, 0x8, 0x96, 0x4f);
+
+typedef struct _GargleFX
+{
+    DWORD       dwRateHz;               // Rate of modulation in hz
+    DWORD       dwWaveShape;            // GARGLE_FX_WAVE_xxx
+} GargleFX, *LPGargleFX;
+
+#define GARGLE_FX_WAVE_TRIANGLE        0
+#define GARGLE_FX_WAVE_SQUARE          1
+
+typedef const GargleFX *LPCGargleFX;
+
+#define GARGLE_FX_RATEHZ_MIN           1
+#define GARGLE_FX_RATEHZ_MAX           1000
+
+//
+// IGargleDMOSample
+//
+DECLARE_INTERFACE_(IGargleDMOSample, IUnknown) {
+
+    // IGargleDMOSample methods
+    STDMETHOD(SetAllParameters)     (THIS_ LPCGargleFX pcGargleFx) PURE;
+    STDMETHOD(GetAllParameters)     (THIS_ LPGargleFX pGargleFx) PURE;
+
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __IGARGLEDMO__