103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1997.
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//
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// File: C F P I D L . C P P
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//
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// Contents: Connections Folder structures and classes.
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//
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// Notes:
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//
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// Author: jeffspr 11 Nov 1997
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//
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//----------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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//+---------------------------------------------------------------------------
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//
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// Function: ConvertToUPnPDevicePIDL
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//
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// Purpose: Convert a pidl to UPNPDEVICEFOLDPIDL
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//
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// Arguments:
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// pidl [] PIDL to convert
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//
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//
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// Returns: The converted pidl
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//
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// Author: tongl 16 Feb 2000
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//
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// Notes:
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//
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//
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PUPNPDEVICEFOLDPIDL ConvertToUPnPDevicePIDL(LPCITEMIDLIST pidl)
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{
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return reinterpret_cast<PUPNPDEVICEFOLDPIDL>
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(ILSkip(pidl, FIELD_OFFSET(DELEGATEITEMID, rgb)));
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}
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//+---------------------------------------------------------------------------
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//
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// Function: FIsUPnPDeviceFoldPidl
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//
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// Purpose: Determine whether a particular PIDL is a UPNPDEVICEFOLDPIDL
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//
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// Arguments:
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// pidl [] PIDL to test
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//
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//
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// Returns: TRUE if it is a UPNPDEVICEFOLDPIDL, FALSE otherwise
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//
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// Author: jeffspr 24 Oct 1997
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//
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// Notes: tongl 2/16/00: use the ConvertToUPnPDevicePIDL as we are
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// a delegate folder now
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//
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//
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BOOL FIsUPnPDeviceFoldPidl(LPCITEMIDLIST pidl)
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{
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BOOL fReturn = FALSE;
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if (pidl)
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{
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PUPNPDEVICEFOLDPIDL pudfp = ConvertToUPnPDevicePIDL(pidl);
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UNALIGNED UPNPUI_PIDL_HEADER * puph;
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puph = (UPNPUI_PIDL_HEADER *)pudfp;
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if (puph->iCB >= CBUPNPDEVICEFOLDPIDL_MIN)
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{
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if (puph->uLeadId == UPNPDEVICEFOLDPIDL_LEADID &&
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puph->uTrailId == UPNPDEVICEFOLDPIDL_TRAILID)
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{
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if (UPNPDEVICEFOLDPIDL_MINVER(puph->dwVersion) <=
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UPNPDEVICEFOLDPIDL_MINVER(UP_DEVICE_FOLDER_IDL_VERSION))
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{
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fReturn = TRUE;
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}
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else
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{
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TraceTag(ttidShellFolder, "Pidl version (0x%x) != UP_DEVICE_FOLDER_IDL_VERSION (0x%x)",
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puph->dwVersion, UP_DEVICE_FOLDER_IDL_VERSION);
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}
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}
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else
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{
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TraceTag(ttidShellFolder, "Pidl format != connections pidl format. Lead or trail ID not found");
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}
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}
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else
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{
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TraceTag(ttidShellFolder, "Pidl size inconsistent with UPNPDEVICEFOLDPIDL");
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}
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}
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else
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{
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TraceTag(ttidShellFolder, "Pidl NULL in FIsUPnPDeviceFoldPidl");
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}
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return fReturn;
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}
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