getcolordlg.cpp

获取当前界面中任何一个坐标的颜色参数的小程序

// getcolorDlg.cpp : implementation file
//

#include "stdafx.h"
#include "getcolor.h"
#include "getcolorDlg.h"

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

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

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}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
	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)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetcolorDlg dialog

CGetcolorDlg::CGetcolorDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGetcolorDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGetcolorDlg)
	m_CO16 = _T("");
	m_COB = _T("");
	m_COG = _T("");
	m_COR = _T("");
	m_POI_X = _T("");
	m_POI_Y = _T("");
	//}}AFX_DATA_INIT
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CGetcolorDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGetcolorDlg)
	DDX_Text(pDX, IDC_EDIT16, m_CO16);
	DDX_Text(pDX, IDC_EDITB, m_COB);
	DDX_Text(pDX, IDC_EDITG, m_COG);
	DDX_Text(pDX, IDC_EDITR, m_COR);
	DDX_Text(pDX, IDC_EDITX, m_POI_X);
	DDX_Text(pDX, IDC_EDITY, m_POI_Y);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGetcolorDlg, CDialog)
	//{{AFX_MSG_MAP(CGetcolorDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_HOTKEY,OnHotKey)	//消息与相应处理函数相关联 
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetcolorDlg message handlers

BOOL CGetcolorDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}
	SetIcon(m_hIcon, TRUE);
	SetIcon(m_hIcon, FALSE);

	OnCreate();	//初始化时注册热键
	return TRUE; 
}

void CGetcolorDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

void CGetcolorDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); 

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

HCURSOR CGetcolorDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CGetcolorDlg::OnOK() 
{
	OnGetColor();
}

void CGetcolorDlg::OnCancel() 
{
	OnDestroy(); //退出时注销热键
	CDialog::OnCancel();
}

void CGetcolorDlg::OnCreate()	//向系统登记热键
{
	RegisterHotKey(m_hWnd,1001,MOD_CONTROL,'2');	//向系统登记热键CTRL+2
	RegisterHotKey(m_hWnd,1002,MOD_CONTROL | MOD_SHIFT,'F');		//向系统登记热键CTRL+SHIFT+F
	//不能注册WINDOWS系统使用的热键，如CTRL+A等
}

void CGetcolorDlg::OnDestroy()	//注销热键
{
	UnregisterHotKey(m_hWnd,1001);           
	UnregisterHotKey(m_hWnd,1002);
}

LRESULT CGetcolorDlg::OnHotKey(WPARAM wParam,LPARAM lParam)
{
	if(wParam==1001||wParam==1002)
	OnGetColor();
	return 0;
}

void CGetcolorDlg::OnGetColor()	//采集颜色
{
	POINT lpPoint;
	GetCursorPos(&lpPoint);		//获取当前鼠标位置
	m_POI_X.Format("%d",lpPoint.x);
	m_POI_Y.Format("%d",lpPoint.y);
	HDC hDC = ::GetDC(NULL);	//取得屏幕句柄
	COLORREF clr;   
    clr = ::GetPixel(hDC,lpPoint.x,lpPoint.y);	//采集屏幕颜色   
	m_COR.Format("%d",GetRValue(clr));	//将颜色红色段数据以10进制转换为CString
	m_COG.Format("%d",GetGValue(clr));	//将颜色绿色段数据以10进制转换为CString
	m_COB.Format("%d",GetBValue(clr));	//将颜色蓝色段数据以10进制转换为CString
	m_CO161.Format("%02x",GetRValue(clr));	//将颜色红色段数据以16进制转换为CString
	m_CO162.Format("%02x",GetGValue(clr));	//将颜色绿色段数据以16进制转换为CString
	m_CO163.Format("%02x",GetBValue(clr));	//将颜色蓝色段数据以16进制转换为CString
	m_CO16 = m_CO163+m_CO162+m_CO161;
	UpdateData(FALSE);		//显示

	//复制到剪贴板 此段代码是标准剪贴板应用代码，不再做说明。
	if(OpenClipboard())
	{
		HGLOBAL clipbuffer;
		char * buffer;
		EmptyClipboard();	
		clipbuffer = GlobalAlloc(GMEM_DDESHARE, m_CO16.GetLength()+1);
		buffer = (char*)GlobalLock(clipbuffer);
		strcpy(buffer, LPCSTR(m_CO16));
		GlobalUnlock(clipbuffer);
		SetClipboardData(CF_TEXT,clipbuffer);
		CloseClipboard();
	}
}