getanydlg.cpp

转载一个获取颜色的小程序

// GetAnyDlg.cpp : implementation file
//

#include "stdafx.h"
#include "GetAny.h"
#include "GetAnyDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CGetAnyDlg dialog

CGetAnyDlg::CGetAnyDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGetAnyDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGetAnyDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_bTop=FALSE;
	m_bTransparent=FALSE;
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CGetAnyDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGetAnyDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGetAnyDlg, CDialog)
	//{{AFX_MSG_MAP(CGetAnyDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_START, OnStart)
	ON_BN_CLICKED(IDC_PAUSE, OnPause)
	ON_BN_CLICKED(IDC_EXIT, OnExit)
	ON_BN_CLICKED(IDC_CHECKTOP, OnChecktop)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_CHECKTRASNPARENT, OnChecktrasnparent)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetAnyDlg message handlers

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

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	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);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CGetAnyDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

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

		// Center icon in client rectangle
		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;

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

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CGetAnyDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CGetAnyDlg::OnStart() 
{
	// TODO: Add your control notification handler code here
	SetTimer(1,100,NULL);
}

void CGetAnyDlg::OnPause() 
{
	// TODO: Add your control notification handler code here
	KillTimer(1);
}

void CGetAnyDlg::OnExit() 
{
	// TODO: Add your control notification handler code here
	KillTimer(1);
	CDialog::EndDialog(0);
}

void CGetAnyDlg::OnChecktop() 
{
	// TODO: Add your control notification handler code here
	if(m_bTop==FALSE)
	{
		
		::SetWindowPos(m_hWnd ,HWND_TOPMOST,0,0,0,0,SWP_NOSIZE | SWP_NOMOVE);
		m_bTop=TRUE;
	}
	else
	{
		::SetWindowPos(m_hWnd ,HWND_NOTOPMOST,0,0,0,0,SWP_NOSIZE | SWP_NOMOVE);
		m_bTop=FALSE;
	}
}

void CGetAnyDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	POINT Pos;
	CString s,s1;
	LPTSTR strText,strClassName;
	COLORREF rgb;
	BYTE r,g,b;
	s1="X: ";
	HWND WinHwnd;
    GetCursorPos(&Pos);
	s.Format("%d",Pos.x);
	s1+=s;
	s1+="  Y: ";
	s.Format("%d",Pos.y);
	s1+=s;
	SetDlgItemText(IDC_EDITXY,s1); 
	rgb=::GetPixel(::GetDC(0),Pos.x ,Pos.y);
	r=GetRValue(rgb);
	g=GetGValue(rgb);
	b=GetBValue(rgb);
	s1="R:";
	s.Format("%d",r);
	s1+=s;
	s1+=" G:";
	s.Format("%d",g);
	s1+=s;
	s1+=" B:";
	s.Format("%d",b);
	s1+=s;
	SetDlgItemText(IDC_EDITRGB,s1);
	CDC *pDC=GetDC();
	CRect rect;
	GetClientRect(rect);
	rect.DeflateRect(200,92);
	rect.OffsetRect(100,-88); 
	CBrush br(RGB(r,g,b));
	pDC->FillRect(rect, &br);
	pDC->DeleteDC(); 
	WinHwnd=::WindowFromPoint(Pos);  
	strText=s.GetBuffer(255); 
	::SendMessage(WinHwnd,WM_GETTEXT,255,(LPARAM)strText);
	s.ReleaseBuffer(); 
	SetDlgItemText(IDC_EDITTEXT,strText);
	strClassName=s.GetBuffer(255);
	::GetClassName(WinHwnd,strClassName,255);
	SetDlgItemText(IDC_EDITCLASSNAME,strClassName);
	s.ReleaseBuffer(); 
	CDialog::OnTimer(nIDEvent);
}

void CGetAnyDlg::OnChecktrasnparent() 
{
	// TODO: Add your control notification handler code here
	SetWindowLong(this->GetSafeHwnd(),GWL_EXSTYLE,GetWindowLong(this->GetSafeHwnd(),GWL_EXSTYLE)^0x80000); 
	HINSTANCE hinst=LoadLibrary("User32.dll");
	if(hinst)
	{
		typedef BOOL (WINAPI *MYFUNC)(HWND,COLORREF,BYTE,DWORD);
		MYFUNC fun=NULL;
		fun=(MYFUNC)GetProcAddress(hinst,"SetLayeredWindowAttributes");
		if(fun)
		{
			if(m_bTransparent==FALSE)
			{
				fun(this->GetSafeHwnd(),0,100,2);
				m_bTransparent=TRUE;
			}
			else
			{
				fun(this->GetSafeHwnd(),0,0,2);
				m_bTransparent=FALSE;
			}
			FreeLibrary(hinst);
		}
	}
}