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61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/* Copyright (c) Mark Harmstone 2016-17
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*
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* This file is part of WinBtrfs.
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*
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* WinBtrfs is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public Licence as published by
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* the Free Software Foundation, either version 3 of the Licence, or
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* (at your option) any later version.
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*
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* WinBtrfs is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public Licence for more details.
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*
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* You should have received a copy of the GNU Lesser General Public Licence
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* along with WinBtrfs. If not, see <http://www.gnu.org/licenses/>. */
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#pragma once
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#include <shlobj.h>
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extern LONG objs_loaded;
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class BtrfsIconOverlay : public IShellIconOverlayIdentifier {
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public:
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BtrfsIconOverlay() {
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refcount = 0;
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InterlockedIncrement(&objs_loaded);
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}
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virtual ~BtrfsIconOverlay() {
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InterlockedDecrement(&objs_loaded);
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}
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// IUnknown
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HRESULT __stdcall QueryInterface(REFIID riid, void **ppObj);
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ULONG __stdcall AddRef() {
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return InterlockedIncrement(&refcount);
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}
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ULONG __stdcall Release() {
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LONG rc = InterlockedDecrement(&refcount);
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if (rc == 0)
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delete this;
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return rc;
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}
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// IShellIconOverlayIdentifier
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virtual HRESULT __stdcall GetOverlayInfo(PWSTR pwszIconFile, int cchMax, int* pIndex, DWORD* pdwFlags);
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virtual HRESULT __stdcall GetPriority(int *pPriority);
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virtual HRESULT __stdcall IsMemberOf(PCWSTR pwszPath, DWORD dwAttrib);
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private:
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LONG refcount;
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};
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