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>

Tools/Launcher/memdc.h

@@ -0,0 +1,44 @@
+#ifndef _MEMDC_H_
+#define _MEMDC_H_
+
+//////////////////////////////////////////////////
+// CMemDC - memory DC
+//
+// Author: Keith Rule
+// Email:  keithr@europa.com
+// Copyright 1996-1997, Keith Rule
+//
+// You may freely use or modify this code provided this
+// Copyright is included in all derived versions.
+//
+// This class implements a memory Device Context
+
+class CMemDC : public CDC {
+private:
+	CBitmap*	m_bitmap;
+	CBitmap*	m_oldBitmap;
+	CDC*		m_pDC;
+	CRect		m_rcBounds;
+public:
+	CMemDC(CDC* pDC, const CRect& rcBounds) : CDC()
+	{
+		CreateCompatibleDC(pDC);
+		m_bitmap = new CBitmap;
+		m_bitmap->CreateCompatibleBitmap(pDC, rcBounds.Width(), rcBounds.Height());
+		m_oldBitmap = SelectObject(m_bitmap);
+		m_pDC = pDC;
+		m_rcBounds = rcBounds;
+	}
+	~CMemDC() 
+	{
+		m_pDC->BitBlt(m_rcBounds.left, m_rcBounds.top, m_rcBounds.Width(), m_rcBounds.Height(), 
+					this, m_rcBounds.left, m_rcBounds.top, SRCCOPY);
+		SelectObject(m_oldBitmap);
+		if (m_bitmap != NULL) delete m_bitmap;
+	}
+	CMemDC* operator->() {
+		return this;
+	}
+};
+
+#endif