charfilterdevice.h

武安河 电子书所副代码,包括windows驱动编程的基本方面

// CharFilterDevice.h
//
// Generated by DriverWizard version DriverStudio 3.1.0 (Build 1722)
// Requires Compuware's DriverWorks classes
//

#ifndef __CharFilterDevice_h__
#define __CharFilterDevice_h__


class CharFilterDevice : public KWdmFilterDevice
{
	SAFE_DESTRUCTORS
public:
	CharFilterDevice(PDEVICE_OBJECT Pdo, ULONG unit);

	virtual NTSTATUS DeviceControl(KIrp I);			

	MEMBER_PASSTHROUGH_COMPLETE(CharFilterDevice, IrpCompletionRoutine);

#ifdef _COMMENT_ONLY

		// The following member functions are actually defined by the
		// a DEVMEMBER_xxx or MEMBER_xxx macro (such as DEVMEMBER_DISPATCHERS).
		// The macro __COMMENT_ONLY never gets defined.  These comment-only
		// definitions simply allow easy navigation to the functions within
		// the Developer Studio using the class browser.

	NTSTATUS IrpCompletionRoutine(KIrp I);
#endif


	KPnpLowerDevice	m_Lower;
	ULONG			m_Unit;
	ULONG nin,nout;	//定义输入、输出字节长度变量
	PCHAR cin,cout;	//定义输入、输出缓冲区指针
private:

	//Prevent the compiler from generating default copy 
	//constructor and assignment operator
	CharFilterDevice(CharFilterDevice&);
	operator=(CharFilterDevice&);
};


#endif