63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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//#---------------------------------------------------------------
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// File: pxpacket.h
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//
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// Synopsis: This file contains the structure definations for
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// the CProxyPacket class.
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//
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// Copyright (C) 1995 Microsoft Corporation
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// All rights reserved.
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//
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// Authors: t-alexwe
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//----------------------------------------------------------------
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#ifndef __PXPACKET_H__
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#define __PXPACKET_H__
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#include "cliproto.h"
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//
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// The CProxyPacket class is a just a wrapper for the PROXYPACKET structure.
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// it has no data members except those that it inherits from PROXYPACKET
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// and is used to manipulate messages found in a packet.
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//
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class CProxyPacket : public PROXYPACKET {
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public:
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CProxyPacket();
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~CProxyPacket();
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//
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// reset a packet to have no messages or data
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//
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void clear() { cLength = PACKETHDRSIZE; cMessages = 0; }
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//
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// Get the next available data area in the packet. Once
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// data has been written here it must be registered with
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// AddMessage()
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//
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PVOID getNextDataPointer(void)
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{ return (PVOID) ((DWORD_PTR) pData + (cLength - PACKETHDRSIZE)); }
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//
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// get the number of bytes of available space in the data area
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//
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WORD getAvailableSpace(void)
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{ return sizeof(PROXYPACKET) - cLength - PACKETHDRSIZE; }
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//
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// add a message to a packet
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//
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void addMessage(WORD wCommand, WORD cData);
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//
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// gets the length of the entire packet
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//
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WORD getSize(void) { return cLength; }
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//
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// Gets the number of messages in a packet
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//
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WORD getMessageCount(void) { return cMessages; }
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//
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// retrieves a pointer to the message data for a particular
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// message.
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//
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PVOID getMessage(WORD wIndex, PWORD pwCommand, PWORD pcData);
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};
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#endif
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