Cómo cambiar el color de fondo de un control de edición MFC

      // editdlg.h : header file
      // 

//////////////////////////////////////////////////////////////////////// 
      /// 
      // CEditDialog dialog

      class CEditDialog : public CDialog
      {
      // Construction
      public:
          CEditDialog(CWnd* pParent = NULL);    // standard constructor

      // Add a CBrush* to store the new background brush for edit controls.
          CBrush* m_pEditBkBrush;

      // Dialog Data
          //{{AFX_DATA(CEditDialog)
          enum { IDD = IDD_EDITDIALOG };
              // NOTE: The ClassWizard will add data members here.
          //}}AFX_DATA

      // Overrides
      // ClassWizard generated virtual function overrides
      //{{AFX_VIRTUAL(CEditDialog)
      protected:
      virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
      //}}AFX_VIRTUAL

      // Implementation
         protected:

          // Generated message map functions
          //{{AFX_MSG(CEditDialog)
          afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);
          afx_msg void OnDestroy();
          //}}AFX_MSG
          DECLARE_MESSAGE_MAP()
      };

      // editdlg.cpp : implementation file
      // 

      #include "stdafx.h"
      #include "mdi.h"
      #include "editdlg.h"

      #ifdef _DEBUG
      #undef THIS_FILE
      static char BASED_CODE THIS_FILE[] = __FILE__;
      #endif

   ////////////////////////////////////////////////////////////////////// 
      // CEditDialog dialog

      CEditDialog::CEditDialog(CWnd* pParent /*=NULL*/)
          : CDialog(CEditDialog::IDD, pParent)
      {
          //{{AFX_DATA_INIT(CEditDialog)
              // NOTE: The ClassWizard will add member initialization here.
          //}}AFX_DATA_INIT

          // Instantiate and initialize the background brush to black.
          m_pEditBkBrush = new CBrush(RGB(0, 0, 0));
      }

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

      BEGIN_MESSAGE_MAP(CEditDialog, CDialog)
          //{{AFX_MSG_MAP(CEditDialog)
          ON_WM_CTLCOLOR()
          ON_WM_DESTROY()
          //}}AFX_MSG_MAP
      END_MESSAGE_MAP()

////////////////////////////////////////////////////////////////////// 
      // CEditDialog message handlers

      HBRUSH CEditDialog::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
      {
          switch (nCtlColor) {

          case CTLCOLOR_EDIT:
          case CTLCOLOR_MSGBOX:
              // Set color to green on black and return the background
                 brush.
              pDC->SetTextColor(RGB(0, 255, 0));
              pDC->SetBkColor(RGB(0, 0, 0));
              return (HBRUSH)(m_pEditBkBrush->GetSafeHandle());

          default:
              return CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
          }
      }

      void CEditDialog::OnDestroy()
      {
          CDialog::OnDestroy();

          // Free the space allocated for the background brush
          delete m_pEditBkBrush;
      }