readme.wzd

《Visual C++ MFC编程实例》配套代码,如果大家正在学习此教程

/////////////////////////////////////////////////////////////////////
// Example file.
/////////////////////////////////////////////////////////////////////

WzdPrjct.h -- an include file that defines a project's registry keys

/////////////////////////////////////////////////////////////////////
// Modify the Application Class.
/////////////////////////////////////////////////////////////////////

// 1) locate the SetRegistryKey() function and change argument to company key
// (failure to do this will cause your application's options to be saved to
// a .ini file in your system's os directory)
	SetRegistryKey(COMPANY_KEY);

/////////////////////////////////////////////////////////////////////
// Modify the Mainframe Class.
/////////////////////////////////////////////////////////////////////

// 1) at start of OnCreate(), call a LoadOptions() helper function
	LoadOptions1();
	
// 2) in OnClose(), call a SaveOptions() helper function
void CMainFrame::OnClose() 
{
	SaveOptions1();
	
	CMDIFrameWnd::OnClose();
}

/////////////////////////////////////////////////////////////////////
// if GetProfileBinary()/WriteProfileBinary() are supported in your version of MFC
/////////////////////////////////////////////////////////////////////
void CMainFrame::LoadOptions1()
{

// 1) to load string options
	m_sOption1=AfxGetApp()->GetProfileString(SETTINGS_KEY,OPTION1_KEY,"Default");

// 2) to load integer options
	m_nOption2=AfxGetApp()->GetProfileInt(SETTINGS_KEY,OPTION2_KEY, 3 );

// 3) to load binary options
	BYTE *p;
	UINT size;
	m_dOption3=33.3;
	if (AfxGetApp()->GetProfileBinary(SETTINGS_KEY,OPTION3_KEY, &p, &size ))
	{
		memcpy(&m_dOption3,p,size);
		delete []p;
	}
}

void CMainFrame::SaveOptions1()
{
// 4) to save string options
	AfxGetApp()->WriteProfileString(SETTINGS_KEY,OPTION1_KEY,m_sOption1);

// 5) to save integer options
	AfxGetApp()->WriteProfileInt(SETTINGS_KEY,OPTION2_KEY, m_nOption2 );

// 6) to save binary options
	AfxGetApp()->WriteProfileBinary(SETTINGS_KEY, OPTION3_KEY, (BYTE*)&m_dOption3, sizeof(m_dOption3));

}

/////////////////////////////////////////////////////////////////////
// if GetProfileBinary()/WriteProfileBinary() are NOT supported on your version of MFC
/////////////////////////////////////////////////////////////////////
void CMainFrame::LoadOptions2()
{
	HKEY key;
	DWORD size, type;
	if(RegOpenKeyEx( HKEY_CURRENT_USER,APPLICATION_KEY,0,KEY_READ,&key) == ERROR_SUCCESS )
	{
// 1) to load string options
		size=128;
		type = REG_SZ;
		LPSTR psz = m_sOption1.GetBuffer(size);
		RegQueryValueEx( key,OPTION1_KEY,0,&type,(LPBYTE)psz,&size );
		m_sOption1.ReleaseBuffer();

// 2) to load integer options
		size=4;
		type = REG_DWORD;
		RegQueryValueEx( key,OPTION2_KEY,0,&type,(LPBYTE)&m_nOption2,&size );

// 3) to load binary options
		size=sizeof(DOUBLE);
		type = REG_BINARY;
		RegQueryValueEx( key,OPTION3_KEY,0,&type,(LPBYTE)&m_dOption3,&size );

		RegCloseKey( key );
	}
}

void CMainFrame::SaveOptions2()
{
	HKEY key;
	DWORD size, type, disposition;
	if (RegOpenKeyEx( HKEY_CURRENT_USER,APPLICATION_KEY,0,
           KEY_WRITE,&key)!=ERROR_SUCCESS)
	{
		RegCreateKeyEx( HKEY_CURRENT_USER,APPLICATION_KEY,0,"",
        		REG_OPTION_NON_VOLATILE,KEY_ALL_ACCESS,NULL,
					&key,&disposition);
	}

// 4) to save string options
	type = REG_SZ;
	size = m_sOption1.GetLength();
	RegSetValueEx( key,OPTION1_KEY,0,type,(LPBYTE)LPCSTR(m_sOption1),size );

// 5) to save int options
	type = REG_DWORD;
	size = 4;
	RegSetValueEx( key,OPTION2_KEY,0,type,(LPBYTE)&m_nOption2,size );

// 6) to save binary options
	type = REG_BINARY;
	size = sizeof(DOUBLE);
	RegSetValueEx( key,OPTION3_KEY,0,type,(LPBYTE)&m_dOption3,size );


	RegCloseKey( key );

}

/////////////////////////////////////////////////////////////////////
// From: Visual C++ MFC Programming by Example by John E. Swanke
// Copyright (C) 1998 jeswanke. All rights reserved.
/////////////////////////////////////////////////////////////////////