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62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//文件 MemDC.h
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//主要功能:
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//
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//程序编写: 2005-12-07
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "afxwin.h"
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#include "DrawLocal/MemAlloc.h"
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class AFX_EXT_CLASS CMemoryDC : public CDC
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{
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public:
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CMemoryDC(void);
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virtual ~CMemoryDC(void);
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public:
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virtual BOOL Create(CSize &pImageSize,int nBPP=0, CDC* pDC=NULL);
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virtual CSize GetSize(void);
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virtual void Empty(void);
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void Erase(COLORREF pColor);
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void FromDC(CDC* pDC); //从指定DC获得显示内容
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void Draw(CDC* pDC, int x, int y); //不拉伸显示
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void Draw(CDC* pDC, int x, int y, int cx, int cy); //拉伸显示
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BOOL WriteBitmap(LPCTSTR lpFileName, int nBt=0, BOOL bCompr=FALSE);
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BOOL Save(LPCTSTR lpFileName);
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BOOL CopyToClipboard(HWND hWnd=NULL);
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static BOOL FileDialog(BOOL bOpenFileDialog , CString &name);
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static CString GetFilterType(BOOL bOpenFileDialog);
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HBITMAP CMemoryDC::Detach();
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operator HBITMAP(void) const;
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operator CMemoryDC*(); // Allow usage as a pointer
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CMemoryDC* operator->() {return this;} // Allow usage as a pointer
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protected:
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CMemAlloc m_memAlloc;
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CImage image;
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CSize cImageSize;
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HBITMAP m_hOldBitmap;
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};
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AFX_INLINE CMemoryDC::operator HBITMAP(void) const
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{
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return (HBITMAP)image;
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}
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AFX_INLINE CMemoryDC::operator CMemoryDC*()
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{
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return this;
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}
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AFX_INLINE CSize CMemoryDC::GetSize(void)
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{
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return cImageSize;
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}
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