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IconBitmapUtils.h
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// Copyright (C) 2011 Fog Creek Software // Copyright (C) 2009 TortoiseSVN // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software Foundation, // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. // // Adapted for use in TortoiseHg by Veniamin Albaev #pragma once #include <uxtheme.h> typedef HRESULT (WINAPI *FN_GetBufferedPaintBits) (HPAINTBUFFER hBufferedPaint, RGBQUAD **ppbBuffer, int *pcxRow); typedef HPAINTBUFFER (WINAPI *FN_BeginBufferedPaint) (HDC hdcTarget, const RECT *prcTarget, BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS *pPaintParams, HDC *phdc); typedef HRESULT (WINAPI *FN_EndBufferedPaint) (HPAINTBUFFER hBufferedPaint, BOOL fUpdateTarget); /** * \ingroup utils * provides helper functions for converting icons to bitmaps */ class CIconBitmapUtils { public: CIconBitmapUtils(); ~CIconBitmapUtils(); HBITMAP IconToBitmap(HICON hIcon); HBITMAP IconToBitmapPARGB32(HICON hIcon); HRESULT Create32BitHBITMAP(HDC hDC, const SIZE *pSize, void **ppvBits, HBITMAP* phBitmap); HRESULT ConvertBufferToPARGB32(HPAINTBUFFER hPaintBuffer, HDC hDC, HICON hIcon, SIZE& sizeIcon); bool HasAlpha(DWORD *pargb, SIZE& sizeImage, int cxRow); HRESULT ConvertToPARGB32(HDC hDC, DWORD* pargb, HBITMAP hBitmap, SIZE& sizeImage, int cxRow); private: HMODULE m_hUxTheme; FN_GetBufferedPaintBits m_pfnGetBufferedPaintBits; FN_BeginBufferedPaint m_pfnBeginBufferedPaint; FN_EndBufferedPaint m_pfnEndBufferedPaint; };