setcolor.cpp

自己编的程序大家下载一下很好的希望大家多多提出意见

// SetColor.cpp : implementation file
//

#include "stdafx.h"
#include "liming02.h"
#include "SetColor.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSetColor dialog


CSetColor::CSetColor(CWnd* pParent /*=NULL*/)
	: CDialog(CSetColor::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSetColor)
	//}}AFX_DATA_INIT
}


void CSetColor::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSetColor)
	DDX_Control(pDX, IDC_SLIDERR, m_red);
	DDX_Control(pDX, IDC_SLIDERG, m_green);
	DDX_Control(pDX, IDC_SLIDERB, m_blue);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CSetColor, CDialog)
	//{{AFX_MSG_MAP(CSetColor)
	ON_WM_PAINT()
	ON_WM_HSCROLL()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSetColor message handlers

void CSetColor::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
	CWnd* pWnd=GetDlgItem(IDC_DRAW);
	pWnd->UpdateWindow ();
	Draw();
	
	// Do not call CDialog::OnPaint() for painting messages
}

//设置相关滚动条的变化关系
void CSetColor::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	// TODO: Add your message handler code here and/or call default
	if(pScrollBar->GetDlgCtrlID ()==IDC_SLIDERR)
	{
		m_R=m_red.GetPos ();
		Draw();
	}
	if(pScrollBar->GetDlgCtrlID ()==IDC_SLIDERG)
	{
		m_G=m_green.GetPos ();
		Draw();
	}
	if(pScrollBar->GetDlgCtrlID ()==IDC_SLIDERB)
	{
		m_B=m_blue.GetPos ();
		Draw();
	}
	CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}
//初始对话框
BOOL CSetColor::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_red.SetRange (0,255);
	m_red.SetPos (0);
	m_green.SetRange (0,255);
	m_green.SetPos (0);
	m_blue.SetRange (0,255);
	m_blue.SetPos (0);
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}
//显示颜色的相关变化
void CSetColor::Draw()
{
	CWnd* pWnd=GetDlgItem(IDC_DRAW);
	CDC *pDC=pWnd->GetDC();
	CBrush drawBrush;
	drawBrush.CreateSolidBrush(RGB(m_R,m_G,m_B));
	CBrush *pOldBrush=pDC->SelectObject(&drawBrush);
	CRect rect;
	pWnd->GetClientRect(&rect);
	pDC->Rectangle(rect);
	pDC->SelectObject(pOldBrush);
}