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171 lines
4.5 KiB
171 lines
4.5 KiB
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//==============================================================;
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//
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// This source code is only intended as a supplement to existing Microsoft documentation.
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//
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//
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//
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
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//
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//
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//
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//==============================================================;
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#include "About.h"
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#include "resource.h"
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#include "globals.h"
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#include <crtdbg.h>
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CSnapinAbout::CSnapinAbout()
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: m_cref(0)
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{
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OBJECT_CREATED
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m_hSmallImage = (HBITMAP)LoadImage(g_hinst, MAKEINTRESOURCE(IDB_SMBMP), IMAGE_BITMAP, 16, 16, LR_LOADTRANSPARENT);
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m_hLargeImage = (HBITMAP)LoadImage(g_hinst, MAKEINTRESOURCE(IDB_LGBMP), IMAGE_BITMAP, 32, 32, LR_LOADTRANSPARENT);
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m_hSmallImageOpen = (HBITMAP)LoadImage(g_hinst, MAKEINTRESOURCE(IDB_SMOPEN), IMAGE_BITMAP, 16, 16, LR_LOADTRANSPARENT);
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m_hAppIcon = LoadIcon(g_hinst, MAKEINTRESOURCE(IDI_ICON1));
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}
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CSnapinAbout::~CSnapinAbout()
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{
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if (m_hSmallImage != NULL)
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FreeResource(m_hSmallImage);
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if (m_hLargeImage != NULL)
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FreeResource(m_hLargeImage);
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if (m_hSmallImageOpen != NULL)
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FreeResource(m_hSmallImageOpen);
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if (m_hAppIcon != NULL)
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FreeResource(m_hAppIcon);
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m_hSmallImage = NULL;
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m_hLargeImage = NULL;
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m_hSmallImageOpen = NULL;
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m_hAppIcon = NULL;
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OBJECT_DESTROYED
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}
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///////////////////////
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// IUnknown implementation
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///////////////////////
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STDMETHODIMP CSnapinAbout::QueryInterface(REFIID riid, LPVOID *ppv)
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{
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if (!ppv)
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return E_FAIL;
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*ppv = NULL;
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if (IsEqualIID(riid, IID_IUnknown))
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*ppv = static_cast<ISnapinAbout *>(this);
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else if (IsEqualIID(riid, IID_ISnapinAbout))
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*ppv = static_cast<ISnapinAbout *>(this);
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if (*ppv)
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{
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reinterpret_cast<IUnknown *>(*ppv)->AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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STDMETHODIMP_(ULONG) CSnapinAbout::AddRef()
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{
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return InterlockedIncrement((LONG *)&m_cref);
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}
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STDMETHODIMP_(ULONG) CSnapinAbout::Release()
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{
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if (InterlockedDecrement((LONG *)&m_cref) == 0)
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{
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// we need to decrement our object count in the DLL
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delete this;
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return 0;
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}
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return m_cref;
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}
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///////////////////////////////
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// Interface ISnapinAbout
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///////////////////////////////
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STDMETHODIMP CSnapinAbout::GetSnapinDescription(
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/* [out] */ LPOLESTR *lpDescription)
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{
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_TCHAR szDesc[MAX_PATH];
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LoadString(g_hinst, IDS_SNAPINDESC, szDesc, sizeof(szDesc));
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return AllocOleStr(lpDescription, szDesc);
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}
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STDMETHODIMP CSnapinAbout::GetProvider(
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/* [out] */ LPOLESTR *lpName)
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{
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return AllocOleStr(lpName, _T("Copyright © 1998 Microsoft Corporation"));;
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}
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STDMETHODIMP CSnapinAbout::GetSnapinVersion(
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/* [out] */ LPOLESTR *lpVersion)
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{
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return AllocOleStr(lpVersion, _T("1.0"));;
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}
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STDMETHODIMP CSnapinAbout::GetSnapinImage(
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/* [out] */ HICON *hAppIcon)
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{
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*hAppIcon = m_hAppIcon;
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if (*hAppIcon == NULL)
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return E_FAIL;
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else
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return S_OK;
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}
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STDMETHODIMP CSnapinAbout::GetStaticFolderImage(
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/* [out] */ HBITMAP *hSmallImage,
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/* [out] */ HBITMAP *hSmallImageOpen,
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/* [out] */ HBITMAP *hLargeImage,
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/* [out] */ COLORREF *cMask)
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{
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*hSmallImage = m_hSmallImage;
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*hLargeImage = m_hLargeImage;
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*hSmallImageOpen = m_hSmallImageOpen;
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*cMask = RGB(0, 128, 128);
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if (*hSmallImage == NULL || *hLargeImage == NULL || *hSmallImageOpen == NULL)
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return E_FAIL;
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else
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return S_OK;
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}
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// this allocates a chunk of memory using CoTaskMemAlloc and copies our chars into it
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HRESULT CSnapinAbout::AllocOleStr(LPOLESTR *lpDest, _TCHAR *szBuffer)
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{
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MAKE_WIDEPTR_FROMTSTR_ALLOC(wszStr, szBuffer);
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*lpDest = wszStr;
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return S_OK;
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}
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