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IconBitmapUtils.h
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// TortoiseSVN - a Windows shell extension for easy version control // 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> #include <GdiPlus.h> #include <map> 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 IconBitmapUtils { public: IconBitmapUtils(void); ~IconBitmapUtils(void); HBITMAP IconToBitmap(HICON hIcon); HBITMAP IconToBitmapPARGB32(HICON hIcon); HRESULT Create32BitHBITMAP(HDC hdc, const SIZE *psize, __deref_opt_out void **ppvBits, __out HBITMAP* phBmp); HRESULT ConvertBufferToPARGB32(HPAINTBUFFER hPaintBuffer, HDC hdc, HICON hicon, SIZE& sizIcon); bool HasAlpha(__in Gdiplus::ARGB *pargb, SIZE& sizImage, int cxRow); HRESULT ConvertToPARGB32(HDC hdc, __inout Gdiplus::ARGB *pargb, HBITMAP hbmp, SIZE& sizImage, int cxRow); private: HMODULE hUxTheme; FN_GetBufferedPaintBits pfnGetBufferedPaintBits; FN_BeginBufferedPaint pfnBeginBufferedPaint; FN_EndBufferedPaint pfnEndBufferedPaint; };