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/ddmm.cpp

@@ -0,0 +1,126 @@
+//------------------------------------------------------------------------------
+// File: DDMM.cpp
+//
+// Desc: DirectShow base classes - implements routines for using DirectDraw
+//       on a multimonitor system.
+//
+// Copyright (c) 1995-2001 Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------------------------
+
+
+#include <streams.h>
+#include <ddraw.h>
+#include "ddmm.h"
+
+/*
+ * FindDeviceCallback
+ */
+typedef struct {
+    LPSTR   szDevice;
+    GUID*   lpGUID;
+    GUID    GUID;
+    BOOL    fFound;
+}   FindDeviceData;
+
+BOOL CALLBACK FindDeviceCallback(GUID* lpGUID, LPSTR szName, LPSTR szDevice, LPVOID lParam) {
+    FindDeviceData *p = (FindDeviceData*)lParam;
+
+    if(lstrcmpiA(p->szDevice, szDevice) == 0) {
+        if(lpGUID) {
+            p->GUID = *lpGUID;
+            p->lpGUID = &p->GUID;
+        }
+        else {
+            p->lpGUID = NULL;
+        }
+        p->fFound = TRUE;
+        return FALSE;
+    }
+    return TRUE;
+}
+
+
+BOOL CALLBACK FindDeviceCallbackEx(GUID* lpGUID, LPSTR szName, LPSTR szDevice, LPVOID lParam, HMONITOR hMonitor) {
+    FindDeviceData *p = (FindDeviceData*)lParam;
+
+    if(lstrcmpiA(p->szDevice, szDevice) == 0) {
+        if(lpGUID) {
+            p->GUID = *lpGUID;
+            p->lpGUID = &p->GUID;
+        }
+        else {
+            p->lpGUID = NULL;
+        }
+        p->fFound = TRUE;
+        return FALSE;
+    }
+    return TRUE;
+}
+
+
+/*
+ * DirectDrawCreateFromDevice
+ *
+ * create a DirectDraw object for a particular device
+ */
+IDirectDraw * DirectDrawCreateFromDevice(LPSTR szDevice, PDRAWCREATE DirectDrawCreateP, PDRAWENUM DirectDrawEnumerateP) {
+    IDirectDraw*    pdd = NULL;
+    FindDeviceData  find;
+
+    if(szDevice == NULL) {
+        DirectDrawCreateP(NULL, &pdd, NULL);
+        return pdd;
+    }
+
+    find.szDevice = szDevice;
+    find.fFound   = FALSE;
+    DirectDrawEnumerateP(FindDeviceCallback, (LPVOID)&find);
+
+    if(find.fFound) {
+        //
+        // In 4bpp mode the following DDraw call causes a message box to be popped
+        // up by DDraw (!?!).  It's DDraw's fault, but we don't like it.  So we
+        // make sure it doesn't happen.
+        //
+        UINT ErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);
+        DirectDrawCreateP(find.lpGUID, &pdd, NULL);
+        SetErrorMode(ErrorMode);
+    }
+
+    return pdd;
+}
+
+
+/*
+ * DirectDrawCreateFromDeviceEx
+ *
+ * create a DirectDraw object for a particular device
+ */
+IDirectDraw * DirectDrawCreateFromDeviceEx(LPSTR szDevice, PDRAWCREATE DirectDrawCreateP, LPDIRECTDRAWENUMERATEEXA DirectDrawEnumerateExP) {
+    IDirectDraw*    pdd = NULL;
+    FindDeviceData  find;
+
+    if(szDevice == NULL) {
+        DirectDrawCreateP(NULL, &pdd, NULL);
+        return pdd;
+    }
+
+    find.szDevice = szDevice;
+    find.fFound   = FALSE;
+    DirectDrawEnumerateExP(FindDeviceCallbackEx, (LPVOID)&find,
+        DDENUM_ATTACHEDSECONDARYDEVICES);
+
+    if(find.fFound) {
+        //
+        // In 4bpp mode the following DDraw call causes a message box to be popped
+        // up by DDraw (!?!).  It's DDraw's fault, but we don't like it.  So we
+        // make sure it doesn't happen.
+        //
+        UINT ErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);
+        DirectDrawCreateP(find.lpGUID, &pdd, NULL);
+        SetErrorMode(ErrorMode);
+    }
+
+    return pdd;
+}
+