reactos/dll/shellext/shellbtrfs/iconoverlay.h

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/* Copyright (c) Mark Harmstone 2016-17
*
* This file is part of WinBtrfs.
*
* WinBtrfs is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public Licence as published by
* the Free Software Foundation, either version 3 of the Licence, or
* (at your option) any later version.
*
* WinBtrfs is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public Licence for more details.
*
* You should have received a copy of the GNU Lesser General Public Licence
* along with WinBtrfs. If not, see <http://www.gnu.org/licenses/>. */
2017-11-26 13:16:29 +00:00
#pragma once
#include <shlobj.h>
extern LONG objs_loaded;
class BtrfsIconOverlay : public IShellIconOverlayIdentifier {
public:
BtrfsIconOverlay() {
refcount = 0;
InterlockedIncrement(&objs_loaded);
}
virtual ~BtrfsIconOverlay() {
InterlockedDecrement(&objs_loaded);
}
// IUnknown
HRESULT __stdcall QueryInterface(REFIID riid, void **ppObj);
ULONG __stdcall AddRef() {
return InterlockedIncrement(&refcount);
}
ULONG __stdcall Release() {
LONG rc = InterlockedDecrement(&refcount);
if (rc == 0)
delete this;
return rc;
}
// IShellIconOverlayIdentifier
virtual HRESULT __stdcall GetOverlayInfo(PWSTR pwszIconFile, int cchMax, int* pIndex, DWORD* pdwFlags);
virtual HRESULT __stdcall GetPriority(int *pPriority);
virtual HRESULT __stdcall IsMemberOf(PCWSTR pwszPath, DWORD dwAttrib);
private:
LONG refcount;
};