310 lines
8.8 KiB
C++
310 lines
8.8 KiB
C++
//____________________________________________________________________________
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1995 - 1996.
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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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#ifndef DECLSPEC_UUID
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#if _MSC_VER >= 1100
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#define DECLSPEC_UUID(x) __declspec(uuid(x))
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#else
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#define DECLSPEC_UUID(x)
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#endif
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#endif
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#include "ndmgr.h"
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#include "safetemp.h"
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#include "guidhelp.h"
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#include "atlbase.h" // USES_CONVERSION
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#include "macros.h"
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USE_HANDLE_MACROS("GUIDHELP(guidhelp.cpp)")
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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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PVOID pbData,
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DWORD cbData )
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{
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TEST_NONNULL_PTR_PARAM( piDataObject );
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TEST_NONNULL_PTR_PARAM( 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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// JonN Jan 7 1999: don't assert here, some errors are perfectly reasonable
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break;
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}
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PVOID pbNewData = reinterpret_cast<PVOID>(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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//VERIFY( stgmedium.hGlobal);
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VERIFY( NULL == ::GlobalFree(stgmedium.hGlobal) );
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}
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return hr;
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} // ExtractData()
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HRESULT ExtractString( IDataObject* piDataObject,
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CLIPFORMAT cfClipFormat,
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CStr* pstr, // OUT: Pointer to CStr to store data
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DWORD cchMaxLength)
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{
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TEST_NONNULL_PTR_PARAM( piDataObject );
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TEST_NONNULL_PTR_PARAM( pstr );
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ASSERT( cchMaxLength > 0 );
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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, sizeof(WCHAR)*cchMaxLength);
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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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// This failure happens when 'searching' for
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// clipboard format supported by the IDataObject.
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// t-danmo (24-Oct-96)
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// Skipping ASSERT( FALSE );
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break;
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}
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LPWSTR pszNewData = reinterpret_cast<LPWSTR>(stgmedium.hGlobal);
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if (NULL == pszNewData)
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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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pszNewData[cchMaxLength-1] = L'\0'; // just to be safe
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USES_CONVERSION;
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*pstr = OLE2T(pszNewData);
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} while (FALSE); // false loop
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if (NULL != stgmedium.hGlobal)
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{
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VERIFY(NULL == ::GlobalFree(stgmedium.hGlobal));
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}
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return hr;
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} // ExtractString()
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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, (PVOID)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, (PVOID)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, MAX_PATH); // JonN 11/21/00 PREFIX 226769
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ASSERT(SUCCEEDED(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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#if 0
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HRESULT bstrToGuid( const bstr& str, GUID* pguid )
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{
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HRESULT hr = CLSIDFromString(const_cast<LPOLESTR>((LPCWSTR)str), pguid);
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ASSERT(SUCCEEDED(hr));
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return hr;
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}
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#endif
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HRESULT LoadRootDisplayName(IComponentData* pIComponentData,
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CStr& strDisplayName)
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{
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IDataObject* pIDataObject = NULL;
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HRESULT hr = pIComponentData->QueryDataObject(NULL, CCT_SNAPIN_MANAGER, &pIDataObject);
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CHECK_HRESULT(hr);
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if ( FAILED(hr) )
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return hr;
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XSafeInterfacePtr<IDataObject> safeDataObject( pIDataObject, FALSE );
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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( pIDataObject,
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g_CFDisplayName,
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&strDisplayName,
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MAX_PATH); // CODEWORK maximum length
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CHECK_HRESULT(hr);
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return hr;
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}
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HRESULT LoadAndAddMenuItem(
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IContextMenuCallback* pIContextMenuCallback,
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UINT nResourceID, // contains text and status text seperated by '\n'
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long lCommandID,
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long lInsertionPointID,
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long fFlags,
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HINSTANCE hInst)
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{
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ASSERT( pIContextMenuCallback != NULL );
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// load the resource
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CStr strText;
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strText.LoadString(hInst, nResourceID );
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ASSERT( !strText.IsEmpty() );
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// split the resource into the menu text and status text
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CStr strStatusText;
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int iSeparator = strText.Find(_T('\n'));
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if (0 > iSeparator)
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{
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ASSERT( FALSE );
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strStatusText = strText;
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}
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else
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{
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strStatusText = strText.Right( strText.GetLength()-(iSeparator+1) );
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strText = strText.Left( iSeparator );
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}
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// add the menu item
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USES_CONVERSION;
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CONTEXTMENUITEM contextmenuitem;
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::ZeroMemory( &contextmenuitem, sizeof(contextmenuitem) );
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contextmenuitem.strName = T2OLE(const_cast<LPTSTR>((LPCTSTR)strText));
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contextmenuitem.strStatusBarText = T2OLE(const_cast<LPTSTR>((LPCTSTR)strStatusText));
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contextmenuitem.lCommandID = lCommandID;
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contextmenuitem.lInsertionPointID = lInsertionPointID;
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contextmenuitem.fFlags = fFlags;
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contextmenuitem.fSpecialFlags = ((fFlags & MF_POPUP) ? CCM_SPECIAL_SUBMENU : 0L);
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HRESULT hr = pIContextMenuCallback->AddItem( &contextmenuitem );
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ASSERT(hr == S_OK);
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return hr;
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}
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HRESULT AddSpecialSeparator(
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IContextMenuCallback* pIContextMenuCallback,
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long lInsertionPointID )
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{
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CONTEXTMENUITEM contextmenuitem;
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::ZeroMemory( &contextmenuitem, sizeof(contextmenuitem) );
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contextmenuitem.strName = NULL;
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contextmenuitem.strStatusBarText = NULL;
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contextmenuitem.lCommandID = 0;
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contextmenuitem.lInsertionPointID = lInsertionPointID;
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contextmenuitem.fFlags = MF_SEPARATOR;
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contextmenuitem.fSpecialFlags = CCM_SPECIAL_SEPARATOR;
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HRESULT hr = pIContextMenuCallback->AddItem( &contextmenuitem );
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ASSERT(hr == S_OK);
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return hr;
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}
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HRESULT AddSpecialInsertionPoint(
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IContextMenuCallback* pIContextMenuCallback,
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long lCommandID,
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long lInsertionPointID )
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{
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CONTEXTMENUITEM contextmenuitem;
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::ZeroMemory( &contextmenuitem, sizeof(contextmenuitem) );
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contextmenuitem.strName = NULL;
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contextmenuitem.strStatusBarText = NULL;
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contextmenuitem.lCommandID = lCommandID;
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contextmenuitem.lInsertionPointID = lInsertionPointID;
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contextmenuitem.fFlags = 0;
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contextmenuitem.fSpecialFlags = CCM_SPECIAL_INSERTION_POINT;
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HRESULT hr = pIContextMenuCallback->AddItem( &contextmenuitem );
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ASSERT(hr == S_OK);
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return hr;
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}
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