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Mymemdc.h
资源名称:1731.rar [点击查看]
上传用户:swkcbjrc
上传日期:2016-04-02
资源大小:45277k
文件大小:1k
源码类别:
游戏
开发平台:
Visual C++
- #ifndef _MEMDC_H_
- #define _MEMDC_H_
- //////////////////////////////////////////////////
- // CMemDC - memory DC
- //
- // Author: Keith Rule
- // Email: keithr@europa.com
- // Copyright 1996-1997, Keith Rule
- //
- // You may freely use or modify this code provided this
- // Copyright is included in all derived versions.
- //
- // This class implements a memory Device Context
- class CMyMemDC : public CDC {
- private:
- CBitmap* m_bitmap;
- CBitmap* m_oldBitmap;
- CDC* m_pDC;
- CRect m_rcBounds;
- public:
- CMyMemDC(CDC* pDC, const CRect& rcBounds) : CDC()
- {
- CreateCompatibleDC(pDC);
- m_bitmap = new CBitmap;
- m_bitmap->CreateCompatibleBitmap(pDC, rcBounds.Width(), rcBounds.Height());
- m_oldBitmap = SelectObject(m_bitmap);
- m_pDC = pDC;
- m_rcBounds = rcBounds;
- }
- ~CMyMemDC()
- {
- m_pDC->BitBlt(m_rcBounds.left, m_rcBounds.top, m_rcBounds.Width(), m_rcBounds.Height(),
- this, m_rcBounds.left, m_rcBounds.top, SRCCOPY);
- SelectObject(m_oldBitmap);
- if (m_bitmap != NULL) delete m_bitmap;
- }
- CMyMemDC* operator->() {
- return this;
- }
- };
- #endif