CEditEx 可改变字体颜色，大小与背景颜

 ///////////////////CEditEx.h

#if !defined(AFX_EDITEX_H__9B5C9C39_B497_4EBB_91BC_8D23F5BFEDBE__INCLUDED_)#define AFX_EDITEX_H__9B5C9C39_B497_4EBB_91BC_8D23F5BFEDBE__INCLUDED_#if _MSC_VER > 1000#pragma once#endif // _MSC_VER > 1000// EditEx.h : header file///////////////////////////////////////////////////////////////////////////////// CEditEx windowclass CEditEx : public CEdit{// Constructionpublic:CEditEx();// Attributespublic:// Operationspublic:// Overrides// ClassWizard generated virtual function overrides//{{AFX_VIRTUAL(CEditEx)//}}AFX_VIRTUAL// Implementationpublic:virtual ~CEditEx();void SetTextColor(COLORREF rgb);void SetBackColor(COLORREF rgb);void SetTextFont(int nSize);// Generated message map functionsprotected://text and text background colorsCOLORREF m_crText;COLORREF m_crBackGnd;//background brushCBrush m_brBackGnd;//{{AFX_MSG(CEditEx)afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);//}}AFX_MSGDECLARE_MESSAGE_MAP()};///////////////////////////////////////////////////////////////////////////////{{AFX_INSERT_LOCATION}}// Microsoft Visual C++ will insert additional declarations immediately before the previous line.#endif // !defined(AFX_EDITEX_H__9B5C9C39_B497_4EBB_91BC_8D23F5BFEDBE__INCLUDED_)

 

////////////////////CEditEx.cpp

// EditEx.cpp : implementation file//#include "stdafx.h"#include "EditEx.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CEditExCEditEx::CEditEx(){}CEditEx::~CEditEx(){}BEGIN_MESSAGE_MAP(CEditEx, CEdit)//{{AFX_MSG_MAP(CEditEx)ON_WM_CTLCOLOR_REFLECT()//}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CEditEx message handlersHBRUSH CEditEx::CtlColor(CDC* pDC, UINT nCtlColor) {// TODO: Change any attributes of the DC here// TODO: Return a non-NULL brush if the parent's handler should not be called// TODO: Return a non-NULL brush if the parent's handler should not be called//set text colorpDC->SetTextColor(m_crText);//set the text's background colorpDC->SetBkColor(m_crBackGnd);//return the brush used for background this sets control backgrounreturn m_brBackGnd;}void CEditEx::SetBackColor(COLORREF rgb){//set background color ref (used for text's background)m_crBackGnd = rgb;//free brushif (m_brBackGnd.GetSafeHandle()) m_brBackGnd.DeleteObject();//set brush to new colorm_brBackGnd.CreateSolidBrush(rgb);//redrawInvalidate(TRUE);}void CEditEx::SetTextColor(COLORREF rgb){//set text color refm_crText = rgb;//redrawInvalidate(TRUE);}void CEditEx::SetTextFont(int nSize) { CClientDC dc(this); CFont* font = new CFont; font->CreatePointFont(nSize, _T("System"), &dc); SetFont(font, TRUE); delete font;}