一个工具箱调色板.........

如图所示
如果想做成工具箱式，直接生成一个DialogBar,将此调色板镶入即可
CColorPicker m_picker;
m_picker.Create("kdfj","dfdf",WS_VISIBLE,CRect(0,0,400,50),this,1023,NULL);
CColorPicker类
#if !defined(AFX_COLORPICKER_H__30EE9CBC_5C0B_4B5E_88E7_95C6D42E3923__INCLUDED_)
#define AFX_COLORPICKER_H__30EE9CBC_5C0B_4B5E_88E7_95C6D42E3923__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// ColorPicker.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// CColorPicker window

class CColorPicker : public CWnd
{
// Construction
public:
 CColorPicker();
 UINT  m_nStyle;
// Attributes
public:

// Operations
public:

// Overrides
 // ClassWizard generated virtual function overrides
 //{{AFX_VIRTUAL(CColorPicker)
 public:
 virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext = NULL);
 //}}AFX_VIRTUAL

// Implementation
public:
 COLORREF GetColor();
 virtual ~CColorPicker();

 // Generated message map functions
protected:
 //{{AFX_MSG(CColorPicker)
 afx_msg void OnPaint();
 afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
 afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
 afx_msg BOOL OnEraseBkgnd(CDC* pDC);
 //}}AFX_MSG
 DECLARE_MESSAGE_MAP()
private:
 COLORREF color[25];
 COLORREF m_color;
 
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_COLORPICKER_H__30EE9CBC_5C0B_4B5E_88E7_95C6D42E3923__INCLUDED_)


// ColorPicker.cpp : implementation file
//

#include "stdafx.h"

#include "ColorPicker.h"

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

/////////////////////////////////////////////////////////////////////////////
// CColorPicker

CColorPicker::CColorPicker()
{m_color=RGB(0,0,0);

color[0]=RGB(0,0,0);
color[1]=RGB(128,0,0);
color[2]=RGB(0,128,0);
color[3]=RGB(128,128,0);
color[4]=RGB(0,0,128);
color[5]=RGB(128,0,128);
color[6]=RGB(0,128,128);
color[7]=RGB(192,192,192);
color[8]=RGB(192,220,192);
color[9]=RGB(166,202,240);
color[10]=RGB(255,251,240);
color[11]=RGB(160,160,164);
color[12]=RGB(128,128,128);
color[13]=RGB(255,0,0);
color[14]=RGB(0,255,0);
color[15]=RGB(255,255,0);
color[16]=RGB(0,0,255); 
color[17]=RGB(255,0,0);
color[18]=RGB(255,0,255);
color[19]=RGB(0,255,255);
color[20]=RGB(255,255,255); 
}

CColorPicker::~CColorPicker()
{
}

BEGIN_MESSAGE_MAP(CColorPicker, CWnd)
 //{{AFX_MSG_MAP(CColorPicker)
 ON_WM_PAINT()
 ON_WM_LBUTTONDOWN()
 ON_WM_LBUTTONDBLCLK()
 ON_WM_ERASEBKGND()
 //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CColorPicker message handlers

BOOL CColorPicker::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
 // TODO: Add your specialized code here and/or call the base class
 m_nStyle = dwStyle;
 
 if (CWnd::Create(AfxRegisterWndClass(CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW, AfxGetApp()->LoadStandardCursor(IDC_ARROW), (HBRUSH)GetStockObject(LTGRAY_BRUSH), NULL),
  NULL,
  dwStyle&~ WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
  rect,
  pParentWnd,
  nID))
 return TRUE;
 return FALSE;

 

 return CWnd::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);
}

 

void CColorPicker::OnPaint()
{
 CPaintDC dc(this); // device context for painting
 CRect rect;
 CBrush br;
// CBrush *pr;
 int index=0;
 this->GetClientRect(&rect);
 long x1=rect.left+rect.Width()/10,y1=rect.top,x2=rect.right-rect.Width()/10,y2=rect.bottom;
 
 for(int i=x1;i<x2;i+=(x2-x1)/10)
  for(int j=y1;j<y2;j+=rect.Height()/2)
  { br.CreateSolidBrush(color[index]);
   dc.SelectObject(&br);
   dc.Rectangle(CRect(i,j,i+rect.Width()/10,j+rect.Height()/2));
   index++;
   br.Detach();
  }
  
  br.CreateSolidBrush(m_color);
  dc.SelectObject(&br);
  dc.Rectangle(CRect(0,0,rect.Width()/11,rect.Height()));
  br.Detach();
 // TODO: Add your message handler code here
 
 // Do not call CWnd::OnPaint() for painting messages
}

void CColorPicker::OnLButtonDown(UINT nFlags, CPoint point)
{CRect rect;
//this->ClientToScreen(&point);
this->GetClientRect(&rect);
int step=0;
long x1=rect.left+rect.Width()/10,y1=rect.top,x2=rect.right-rect.Width()/10,y2=rect.bottom;
for(int i=x1;i<x2;i+=(x2-x1)/10)
for(int j=y1;j<y2;j+=rect.Height()/2)
  {
   if(point.x>i&&point.x<i+(x2-x1)/10
    &&point.y>j&&point.y<j+rect.Height()/2)
    
   { 
    m_color=color[step];//+(step)*519500;
    
   }
  step++;
  }
 this->Invalidate();

 CWnd::OnLButtonDown(nFlags, point);
}

void CColorPicker::OnLButtonDblClk(UINT nFlags, CPoint point)
{
 // TODO: Add your message handler code here and/or call default
 CColorDialog dlg;
 if(dlg.DoModal() == IDOK)
 {m_color = dlg.GetColor();}
 this->Invalidate();
 CWnd::OnLButtonDblClk(nFlags, point);
}

COLORREF CColorPicker::GetColor()
{return m_color;

}

BOOL CColorPicker::OnEraseBkgnd(CDC* pDC)
{
 // TODO: Add your message handler code here and/or call default
 
 return CWnd::OnEraseBkgnd(pDC);
}
演示程序

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