182 lines
4.6 KiB
C++
182 lines
4.6 KiB
C++
//____________________________________________________________________________
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1995 - 1999
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//
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// File: guidhelp.cpp
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//
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// Contents:
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//
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// Classes:
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//
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// Functions:
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//
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// History: 9/18/1996 JonN Created
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//
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//____________________________________________________________________________
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#include <objbase.h>
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#include <basetyps.h>
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#include "dbg.h"
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#include "cstr.h"
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DECLARE_INFOLEVEL(AMCCore);
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#include "commctrl.h" // for LV_ITEM needed by ndmgrpriv.h
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// This defines the GUID's in the headers below.
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#ifndef DECLSPEC_UUID
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#define DECLSPEC_UUID(x) __declspec(uuid(x))
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#endif
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#include "mmc.h"
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#include "ndmgr.h"
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#include "ndmgrpriv.h"
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#include "guidhelp.h"
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#include "comdef.h"
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#include "atlbase.h" // USES_CONVERSION
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#include "macros.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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static CLIPFORMAT g_CFNodeType = 0;
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static CLIPFORMAT g_CFSnapInCLSID = 0;
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static CLIPFORMAT g_CFDisplayName = 0;
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HRESULT ExtractData( IDataObject* piDataObject,
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CLIPFORMAT cfClipFormat,
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BYTE* pbData,
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DWORD cbData )
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{
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IF_NULL_RETURN_INVALIDARG2( piDataObject, pbData );
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HRESULT hr = S_OK;
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FORMATETC formatetc = {cfClipFormat, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
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STGMEDIUM stgmedium = {TYMED_HGLOBAL, NULL};
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stgmedium.hGlobal = ::GlobalAlloc(GPTR, cbData);
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do // false loop
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{
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if (NULL == stgmedium.hGlobal)
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{
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ASSERT(FALSE);
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////AfxThrowMemoryException();
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hr = E_OUTOFMEMORY;
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break;
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}
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hr = piDataObject->GetDataHere( &formatetc, &stgmedium );
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if ( FAILED(hr) )
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{
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// ASSERT( FALSE );
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break;
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}
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BYTE* pbNewData = reinterpret_cast<BYTE*>(stgmedium.hGlobal);
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if (NULL == pbNewData)
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{
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ASSERT(FALSE);
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hr = E_UNEXPECTED;
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break;
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}
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::memcpy( pbData, pbNewData, cbData );
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} while (FALSE); // false loop
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if (NULL != stgmedium.hGlobal)
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{
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#if (_MSC_VER >= 1200)
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#pragma warning (push)
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#endif
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#pragma warning(disable: 4553) // "==" operator has no effect
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VERIFY( NULL == ::GlobalFree(stgmedium.hGlobal) );
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#if (_MSC_VER >= 1200)
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#pragma warning (pop)
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#endif
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}
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return hr;
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} // ExtractData()
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HRESULT ExtractSnapInCLSID( IDataObject* piDataObject, CLSID* pclsidSnapin )
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{
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if( !g_CFSnapInCLSID )
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{
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USES_CONVERSION;
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g_CFSnapInCLSID = (CLIPFORMAT) RegisterClipboardFormat(W2T(CCF_SNAPIN_CLASSID));
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}
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return ExtractData( piDataObject, g_CFSnapInCLSID, (PBYTE)pclsidSnapin, sizeof(CLSID) );
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}
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HRESULT ExtractObjectTypeGUID( IDataObject* piDataObject, GUID* pguidObjectType )
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{
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if( !g_CFNodeType )
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{
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USES_CONVERSION;
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g_CFNodeType = (CLIPFORMAT) RegisterClipboardFormat(W2T(CCF_NODETYPE));
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}
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return ExtractData( piDataObject, g_CFNodeType, (PBYTE)pguidObjectType, sizeof(GUID) );
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}
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HRESULT GuidToCStr( CStr* pstr, const GUID& guid )
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{
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WCHAR awch[MAX_PATH];
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HRESULT hr = StringFromGUID2(guid, awch, sizeof(awch)/sizeof(awch[0]));
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ASSERT(SUCCEEDED(hr));
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if (FAILED(hr))
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return hr;
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USES_CONVERSION;
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LPTSTR lptstr = OLE2T(awch);
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*pstr = lptstr;
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return hr;
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}
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HRESULT CStrToGuid( const CStr& str, GUID* pguid )
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{
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USES_CONVERSION;
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LPOLESTR lpolestr = T2OLE(((LPTSTR)(LPCTSTR)str));
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HRESULT hr = CLSIDFromString(lpolestr, pguid);
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ASSERT(SUCCEEDED(hr));
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return hr;
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}
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HRESULT ExtractObjectTypeCStr( IDataObject* piDataObject, CStr* pstr )
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{
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GUID guidObjectType;
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HRESULT hr = ExtractObjectTypeGUID( piDataObject, &guidObjectType );
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ASSERT(SUCCEEDED(hr));
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return GuidToCStr( pstr, guidObjectType );
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}
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HRESULT LoadRootDisplayName(IComponentData* pIComponentData,
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CStr& strDisplayName)
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{
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IDataObjectPtr spIDataObject;
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HRESULT hr = pIComponentData->QueryDataObject(NULL, CCT_SNAPIN_MANAGER, &spIDataObject);
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CHECK_HRESULT(hr);
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if ( FAILED(hr) )
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return hr;
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if( !g_CFDisplayName )
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{
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USES_CONVERSION;
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g_CFDisplayName = (CLIPFORMAT) RegisterClipboardFormat(W2T(CCF_DISPLAY_NAME));
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}
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hr = ExtractString( spIDataObject,
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g_CFDisplayName,
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strDisplayName);
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CHECK_HRESULT(hr);
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return hr;
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}
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