color.cpp

可以在状态栏中随鼠标移动实时显示出设备坐标和逻辑坐标

// color.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "color.h"
#include "coloredit.h"

#include "MainFrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CColorApp

BEGIN_MESSAGE_MAP(CColorApp, CWinApp)
//{{AFX_MSG_MAP(CColorApp)
ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
// NOTE - the ClassWizard will add and remove mapping macros here.
//    DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CColorApp construction

CColorApp::CColorApp()
	{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
	}

/////////////////////////////////////////////////////////////////////////////
// The one and only CColorApp object

CColorApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CColorApp initialization

BOOL CColorApp::InitInstance()
	{
	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.
	
	// Change the registry key under which our settings are stored.
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization.
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));//将应用程序的设置保存在注册表
	
	
	// To create the main window, this code creates a new frame window
	// object and then sets it as the application's main window object.
	
	CMainFrame* pFrame = new CMainFrame;
	m_pMainWnd = pFrame;
	
	// create and load the frame with its resources
	
	pFrame->LoadFrame(IDR_MAINFRAME,
		WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, NULL,
		NULL);
	
	
	
	
	// The one and only window has been initialized, so show and update it.
	pFrame->ShowWindow(SW_SHOW);
	pFrame->UpdateWindow();
	
	return TRUE;
	}

/////////////////////////////////////////////////////////////////////////////
// CColorApp message handlers





/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
	{
	public:
		HBRUSH m_brMine;
		CAboutDlg();
		
		// Dialog Data
		//{{AFX_DATA(CAboutDlg)
		enum { IDD = IDD_ABOUTBOX };
		CColorEdit	m_coloredit;
		//}}AFX_DATA
		
		// ClassWizard generated virtual function overrides
		//{{AFX_VIRTUAL(CAboutDlg)
	protected:
		virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
		//}}AFX_VIRTUAL
		
		// Implementation
	protected:
		//{{AFX_MSG(CAboutDlg)
		afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);
	afx_msg void OnClickRedraw();
	//}}AFX_MSG
		DECLARE_MESSAGE_MAP()
	};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
	{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
	}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
	{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	DDX_Control(pDX, IDC_EDIT2, m_coloredit);
	//}}AFX_DATA_MAP
	}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
ON_WM_CTLCOLOR()
	ON_BN_CLICKED(IDC_REDRAW, OnClickRedraw)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

// App command to run the dialog
void CColorApp::OnAppAbout()
	{
	CAboutDlg aboutDlg;
	aboutDlg.DoModal();
	}

/////////////////////////////////////////////////////////////////////////////
// CColorApp message handlers


HBRUSH CAboutDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
	{
	
	// TODO: Change any attributes of the DC here
	
	// TODO: Return a different brush if the default is not desired
	if ((pWnd->GetDlgCtrlID() == IDC_EDIT1) && (nCtlColor == CTLCOLOR_EDIT))
		{
		COLORREF clr = RGB(255,0,0);
		pDC->SetTextColor(clr);   //设置红色的文本
		clr = RGB(0,0,0);
		pDC->SetBkColor(clr);     //设置黑色的背景
		m_brMine = ::CreateSolidBrush(clr);
		return m_brMine;  //作为约定，返回背景色对应的刷子句柄
		}
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	return hbr;
	}

void CAboutDlg::OnClickRedraw() 
{
	// TODO: Add your control notification handler code here
	// I will desmontrate how to redraw a dialog here
	CPaintDC * pDC;
	pDC = (CPaintDC *) GetDC();
	pDC->TextOut(250,200,"I love you");
	Invalidate(FALSE);
}