www.pudn.com > Windows 2000设备驱动程序设计指南 .zip > Unicode.h

// Unicode.h 
// 
// Copyright (C) 2000 by Jerry Lozano 
// 
// 
 
#pragma once 
 
 
class CUString { 
public: 
	CUString() {Init(); }	// constructor relies on internal Init function 
	CUString(const char* pAnsiString); 
	CUString(PCWSTR pWideString); 
	~CUString();			// destructor gives back buffer allocation 
	void Init();			// performs "real" initialization 
	void Free();			// performs real destruct 
	CUString(const CUString& orig);	// copy constructure (required) 
	CUString operator=(const CUString& rop);	// assignment operator overload (required) 
	BOOLEAN operator==(const CUString& rop) const;	// comparison operator overload 
	CUString operator+(const CUString& rop) const;	// concatenation operator 
	CUString& operator+=(const CUString& rop);	// and a convenient concat 
	operator PWSTR() const;		// cast operator into wchar_t 
	operator UNICODE_STRING&();	// cast into UNICODE_STRING 
	operator ULONG() const;		// cast operator into ULONG 
	CUString(ULONG value);		// converter:  ULONG->CUString 
	WCHAR& operator[](int idx);	// buffer access operator 
	USHORT Length() {return uStr.Length/2;} 
 
protected: 
	UNICODE_STRING uStr;	// W2K kernel structure for Unicode string 
	enum ALLOC_TYPE {Empty, FromCode, FromPaged, FromNonPaged}; 
	ALLOC_TYPE	aType;		// where buffer is allocated 
};