resolutiondlg.h

visual c++ 实例编程

// resolutionDlg.h : header file
//

#if !defined(AFX_RESOLUTIONDLG_H__E9D5F62A_AC18_4097_8B84_95BA07D27A0D__INCLUDED_)
#define AFX_RESOLUTIONDLG_H__E9D5F62A_AC18_4097_8B84_95BA07D27A0D__INCLUDED_

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

#ifndef __AFXTEMPL_H__
#pragma error("This module requires afxtempl.h in your precompilled header")
#endif

/////////////////////////////////////////////////////////////////////////////
// CResolutionDlg dialog

class CResolutionDlg : public CDialog
{
// Construction
public:
	CResolutionDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CResolutionDlg)
	enum { IDD = IDD_RESOLUTION_DIALOG };
	CEdit	m_edctrl;
	CString	m_edit1;
	//}}AFX_DATA

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

// Implementation
protected:
	HICON m_hIcon;

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

//the class  store video mode information
class CVideoMode
{
public:
//Constructors / Destructors /operation
  CVideoMode();
  CVideoMode(DWORD BitsPerPixel, DWORD Width, DWORD Height, DWORD Frequency);
  CVideoMode(const CVideoMode& mode);
  CVideoMode& operator=(const CVideoMode& mode);

//Public variables
  DWORD m_dwFrequency;
  DWORD m_dwHeight;
  DWORD m_dwWidth;
  DWORD m_dwBitsPerPixel;
};

//array for allavialiable mode 
typedef CArray<CVideoMode, CVideoMode&> CAvailableVideoModes; 

//class for video mode operation
class CVideoModes
{
public:
  static BOOL GetCurrentVideoMode(CVideoMode& mode);
  static BOOL GetAvailableVideoModes(CAvailableVideoModes& modes);
  static LONG ChangeVideoModePermanently(const CVideoMode& mode);
  static LONG ChangeVideoModeTemporarily(const CVideoMode& mode);
  static LONG CanChangeVideoMode(const CVideoMode& mode);
  static LONG RevertVideoModeToDefault();

protected:
  static void ReportChangeVideoErrorValue(LONG lError);
  static void CreateCompatibleDEVMODE(DEVMODE* pdm, DWORD BitsPerPixel, DWORD Width, DWORD Height, DWORD Frequency);
};

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

#endif // !defined(AFX_RESOLUTIONDLG_H__E9D5F62A_AC18_4097_8B84_95BA07D27A0D__INCLUDED_)