midpointdlg.h

可以实现在窗口实现两点连线

// MidpointDlg.h : header file
//

#if !defined(AFX_MIDPOINTDLG_H__3FA004D1_40C1_4A2F_9BCF_319391FEE204__INCLUDED_)
#define AFX_MIDPOINTDLG_H__3FA004D1_40C1_4A2F_9BCF_319391FEE204__INCLUDED_

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

/////////////////////////////////////////////////////////////////////////////
// CMidpointDlg dialog

class CMidpointDlg : public CDialog
{
// Construction
public:
	CMidpointDlg(CWnd* pParent = NULL);	// standard constructor
void Midpoint(int x0, int y0, int x1, int y1, int color);
// Dialog Data
	//{{AFX_DATA(CMidpointDlg)
	enum { IDD = IDD_MIDPOINT_DIALOG };
	int		m_x0;
	int		m_y0;
	int		m_x1;
	int		m_y1;
	int		m_r;
	int		m_g;
	int		m_b;
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CMidpointDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CMidpointDlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg void OnButton1();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

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

#endif // !defined(AFX_MIDPOINTDLG_H__3FA004D1_40C1_4A2F_9BCF_319391FEE204__INCLUDED_)