47 lines
950 B
C
47 lines
950 B
C
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/** @file memory_dc.h
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* @brief <EFBFBD>ڴ<EFBFBD>dc<EFBFBD>࣬ά<EFBFBD><EFBFBD>HBITMAP<EFBFBD><EFBFBD>HDC<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٵĴ<EFBFBD><EFBFBD><EFBFBD>λͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @copyright (c) 2016, NetEase Inc. All rights reserved
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* @author Redrain
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* @date 2016/7/19
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*/
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#pragma once
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class MemoryDC
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{
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public:
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MemoryDC();
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~MemoryDC();
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// <20><>ʼ<EFBFBD><CABC><EFBFBD>ڴ<EFBFBD>dc<64><63><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>λͼ<CEBB><CDBC><EFBFBD><EFBFBD>
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// <20><><EFBFBD><EFBFBD>pBits<74><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><D5A3><EFBFBD><EFBFBD><EFBFBD>pBits<74><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λͼ
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// <20>˺<EFBFBD><CBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>Զ<EFBFBD>ɾ<EFBFBD><C9BE>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD>λͼ<CEBB><CDBC><EFBFBD><EFBFBD>
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bool Init(HDC src_dc, int width, int height, const LPVOID pBits = NULL);
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// ɾ<><C9BE>λͼ<CEBB><CDBC><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void DeleteDC();
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// <20>ж<EFBFBD><D0B6>ڴ<EFBFBD>dc<64>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>
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bool IsValid();
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HDC GetDC();
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HBITMAP GetBitmap();
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// <20><>ȡ<EFBFBD>ڴ<EFBFBD>λͼ<CEBB><CDBC><EFBFBD><EFBFBD>ָ<EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λͼ
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BYTE* GetBits();
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// <20><>ȡ<EFBFBD>ڴ<EFBFBD>λͼ<CEBB>Ŀ<EFBFBD><C4BF><EFBFBD>
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int GetWidth();
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// <20><>ȡ<EFBFBD>ڴ<EFBFBD>λͼ<CEBB>ĸ߶<C4B8>
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int GetHeight();
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private:
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bool CreateMemoryDC(HDC src_dc, int width, int height, void** pBits);
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private:
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HDC mem_dc_;
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HBITMAP bitmap_;
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HBITMAP old_bitmap_;
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BITMAP bitmap_info_;
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SIZE bitmap_size_;
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bool valid_;
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};
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