imgscaleview.h

这是一个图像处理的程序,改变参数控制图片的大小

// ImgScaleView.h : interface of the CImgScaleView class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_IMGSCALEVIEW_H__9AE0128D_4167_11D4_9D99_0080AD8441D2__INCLUDED_)
#define AFX_IMGSCALEVIEW_H__9AE0128D_4167_11D4_9D99_0080AD8441D2__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


class CImgScaleView : public CView
{
protected: // create from serialization only
	CImgScaleView();
	DECLARE_DYNCREATE(CImgScaleView)

// Attributes
public:
	CImgScaleDoc* GetDocument();

// Operations
public:

private:
	void Scale(CDC *pDC, CDib *pDib, int x, int y, int nWidth, int nHeight);
	int  m_nWidth;
	int  m_nHeight;
	DWORD m_dwOperation;
	
	//插值质量
	int m_nQuality;
	
	//缩放比例
	float m_fsx;
	float m_fsy;



// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CImgScaleView)
	public:
	virtual void OnDraw(CDC* pDC);  // overridden to draw this view
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	protected:
	//}}AFX_VIRTUAL

// Implementation
public:
	virtual ~CImgScaleView();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:

// Generated message map functions
protected:
	//{{AFX_MSG(CImgScaleView)
	afx_msg void OnImageScale();
	afx_msg void OnUpdateImageScale(CCmdUI* pCmdUI);
	afx_msg void OnImageRestore();
	afx_msg void OnUpdateImageRestore(CCmdUI* pCmdUI);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

#ifndef _DEBUG  // debug version in ImgScaleView.cpp
inline CImgScaleDoc* CImgScaleView::GetDocument()
   { return (CImgScaleDoc*)m_pDocument; }
#endif

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_IMGSCALEVIEW_H__9AE0128D_4167_11D4_9D99_0080AD8441D2__INCLUDED_)