windows-nt/Source/XPSP1/NT/admin/activec/samples/sdksamples/cmenuext/cmenuext.h
2020-09-26 16:20:57 +08:00

72 lines
2.1 KiB
C++

//==============================================================;
//
// This source code is only intended as a supplement to existing Microsoft documentation.
//
//
//
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
//
//
//
//==============================================================;
#ifndef _CContextMenuExtension_H_
#define _CContextMenuExtension_H_
#include <tchar.h>
#include <mmc.h>
class CContextMenuExtension : public IExtendContextMenu
{
private:
ULONG m_cref;
HRESULT ExtractObjectTypeGUID( IDataObject* piDataObject, GUID* pguidObjectType );
HRESULT ExtractSnapInCLSID( IDataObject* piDataObject, CLSID* pclsidSnapin );
HRESULT ExtractString( IDataObject *piDataObject,
CLIPFORMAT cfClipFormat,
WCHAR *pstr,
DWORD cchMaxLength);
HRESULT ExtractData( IDataObject* piDataObject,
CLIPFORMAT cfClipFormat,
BYTE* pbData,
DWORD cbData );
// clipboard format
static UINT s_cfDisplayName;
static UINT s_cfSnapInCLSID;
static UINT s_cfNodeType;
public:
CContextMenuExtension();
~CContextMenuExtension();
///////////////////////////////
// Interface IUnknown
///////////////////////////////
STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
///////////////////////////////
// Interface IExtendContextMenu
///////////////////////////////
virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE AddMenuItems(
/* [in] */ LPDATAOBJECT piDataObject,
/* [in] */ LPCONTEXTMENUCALLBACK piCallback,
/* [out][in] */ long __RPC_FAR *pInsertionAllowed);
virtual /* [helpstring] */ HRESULT STDMETHODCALLTYPE Command(
/* [in] */ long lCommandID,
/* [in] */ LPDATAOBJECT piDataObject);
};
#endif _CContextMenuExtension_H_