How to Change the color of an MFC

// Bitmap1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Bitmap1.h"
#include "Bitmap1Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CBitmap1Dlg dialog



CBitmap1Dlg::CBitmap1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBitmap1Dlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CBitmap1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//DDX_Control(pDX, IDC_PICTURE, m_picture);
}

BEGIN_MESSAGE_MAP(CBitmap1Dlg, CDialog)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_ERASEBKGND()
	ON_WM_CTLCOLOR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


// CBitmap1Dlg message handlers

BOOL CBitmap1Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 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
	//CBitmap Bit1;
//	HBITMAP hBitmap;
	m_picture.Create(NULL, WS_CHILD|WS_VISIBLE|BS_BITMAP,CRect(10,10,400,50), this, IDC_PICTURE);
	//BOOL bRet = Bit1.LoadBitmapW(MAKEINTRESOURCE(IDB_BITMAP1));
	hBitmap = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_BITMAP1));
	m_picture.SetBitmap(hBitmap);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// 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 CBitmap1Dlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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();
		hBitmap = MakeBitMapTransparent(hBitmap);
		m_picture.SetBitmap(hBitmap);
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CBitmap1Dlg::OnQueryDragIcon()
{
	return static_cast<hcursor>(m_hIcon);
}

BOOL CBitmap1Dlg::OnEraseBkgnd(CDC* pDC)
{
	CRect r;
	////GetClientRect gets the width & height of the client area of the Dialog
	GetClientRect(&r);
	CBrush br(RGB(0,100,0));
	pDC->SelectObject(br);
	pDC->FillRect(r,&br);

	//Make sure to return TRUE;
 //return CDialogEx::OnEraseBkgnd(pDC);
	return TRUE;
}
HBRUSH CBitmap1Dlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
//	HBRUSH hbr = CDialogEx::OnCtlColor(pDC, pWnd, nCtlColor);
 //return hbr;

 //Make sure to return the Brush color should be same as Dialog Background color
        CBrush br(RGB(0,255,0));
	return (HBRUSH)br;
}</hcursor></wparam>

// Bitmap1Dlg.h : header file
//

#pragma once
#include "afxwin.h"
#include "afxext.h"


// CBitmap1Dlg dialog
class CBitmap1Dlg : public CDialog
{
// Construction
public:
	CBitmap1Dlg(CWnd* pParent = NULL);	// standard constructor
	HBITMAP hBitmap;

// Dialog Data
	enum { IDD = IDD_BITMAP1_DIALOG };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support


// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	virtual BOOL OnInitDialog();
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg BOOL OnEraseBkgnd(CDC*);
	afx_msg HBRUSH OnCtlColor(CDC* , CWnd* , UINT );
	DECLARE_MESSAGE_MAP()
public:
	CBitmapButton m_picture;
};