Click here to Skip to main content
6,305,776 members and growing! (17,966 online)
Email Password   helpLost your password?
Desktop Development » Edit Controls » General     Beginner License: The Code Project Open License (CPOL)

Changing the style of an edit control

By guanghui wu

This article will tell you an easy way to change the style of an edit control.
VC6Win2K, WinXP, MFC, Dev
Version:2 (See All)
Posted:29 Mar 2008
Views:16,732
Bookmarked:33 times
Announcements
Loading...
 
Search    
Advanced Search
printPrint   Broken Article?Report       add Share
  Discuss Discuss   Recommend Article Email
5 votes for this article.
Popularity: 2.62 Rating: 3.75 out of 5
1 vote, 20.0%
1

2
1 vote, 20.0%
3
1 vote, 20.0%
4
2 votes, 40.0%
5

Introduction

This is an easy way to change the style of an edit control. We can add a message handler for WM_CTLCOLOR in the parent window (a dialog) and then use a switch sentence to determine a change with the edit control style. When there are many edit boxed, you find this unadvisable. So, I decided to write my own edit class named CExEdit, which is derived from CEdit.

Using the code

The following member functions are provided by the new class CExEdit:

void setTextColor( COLORREF clrText );      // set the text color of edit control
void setFontSize( int nSize );   // set size of font 
void setFontStyle( BOOL bItalic, BOOL bBold, BOOL bUnderLine );
void setBkColor( COLORREF clrBk );   //set the background color of edit control
void setFont( CString strFontName, BYTE language );  // set font name, and character set
void drawEditFrame();            //draw edit border  
void setFontHelper();

Its implementation is very easy. Like in the following code:

void CExEdit::setTextColor( COLORREF clrText )
{
     m_clrText = clrText;
}
void CExEdit::setFontSize( int nSize )
{
     m_nFontSize = nSize;
}
void CExEdit::setFontStyle( BOOL bItalic, BOOL bBold, BOOL bUnderLine )
{
     m_bItalic = bItalic;
     m_bBold = bBold;
     m_bUnderLine = bUnderLine;
}
void CExEdit::setBkColor( COLORREF clrBk )
{
     m_clrBk = clrBk;
     if( m_bkBrush.m_hObject )
         m_bkBrush.DeleteObject();
 
     m_bkBrush.CreateSolidBrush( m_clrBk );
     //m_bkBrush.CreateSolidBrush( RGB( 0, 255, 255 ) );
}
void CExEdit::setFont( CString strFontName, BYTE language )
{
     m_strFontName = strFontName;
     m_language = language;
}
void CExEdit::drawEditFrame()
{
     CRect rcItem;
     CDC* pDC=this->GetDC();
     this->GetClientRect(&rcItem);
     if( !this->IsWindowEnabled() )
     {
          rcItem.InflateRect( 1, 1 );
          pDC->Draw3dRect( rcItem, RGB( 96, 96, 96),RGB( 96, 96, 96));
          rcItem.InflateRect(1,1);
          pDC->Draw3dRect( rcItem, RGB( 128, 128, 128),RGB( 128, 128, 128 ) );
          ReleaseDC( pDC );
          return;
     }
     if( m_bOver&& m_bFocus )
     {
          rcItem.InflateRect(1,1);
          pDC->Draw3dRect(rcItem,RGB( 255, 102, 51 ),RGB( 255, 102, 51 ) );
          rcItem.InflateRect(1,1);
          pDC->Draw3dRect(rcItem,RGB( 255, 163, 132 ),RGB( 255, 163, 132 ) );
     }
     if( m_bOver && !m_bFocus )
     {
          rcItem.InflateRect( 1, 1 );
          pDC->Draw3dRect( rcItem,RGB( 0, 176, 88 ),RGB( 0, 176, 88 ) );
          rcItem.InflateRect(1,1);
              pDC->Draw3dRect( rcItem,RGB( 122, 189, 32 ),RGB( 122, 189, 32 ) );
     }
     if( !m_bOver )
     {
          rcItem.InflateRect( 1, 1 );
          pDC->Draw3dRect(rcItem,RGB(102,102,153),RGB(102,102,153));
          rcItem.InflateRect( 1, 1);
          pDC->Draw3dRect(rcItem,RGB(174,174,202),RGB(174,174,202));
     }
     ReleaseDC(pDC);
}
void CExEdit::setFontHelper()
{   
    if( m_pFont->m_hObject )
        m_pFont->DeleteObject();
    LOGFONT  lgFont;
    lgFont.lfCharSet = m_language;
    lgFont.lfClipPrecision = 0;
    lgFont.lfEscapement = 0;
    strcpy( lgFont.lfFaceName, m_strFontName );
    lgFont.lfHeight = m_nFontSize;
    lgFont.lfItalic = m_bItalic;
    lgFont.lfOrientation = 0;
    lgFont.lfOutPrecision = 0;
    lgFont.lfPitchAndFamily = 2;
    lgFont.lfQuality = 0;
    lgFont.lfStrikeOut = 0;
    lgFont.lfUnderline = m_bUnderLine;
    lgFont.lfWidth = 0;
    if( m_bBold )
       lgFont.lfWeight = FW_BOLD;
    else
       lgFont.lfWeight = FW_NORMAL;
    m_pFont->CreatePointFontIndirect( &lgFont );
    SetFont( m_pFont );
}

Adding a message handler

Add the following message handler in the CExEdit class:

afx_msg void OnKillfocus();
afx_msg void OnSetfocus();
afx_msg void OnMouseMove(UINT nFlags, CPoint point);
afx_msg LRESULT OnMouseHover( WPARAM wParam, LPARAM lParam );
afx_msg LRESULT OnMouseLeave( WPARAM wParam, LPARAM lParam );
afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);

First, we must add the following code to track mouse events to the dynamic style changes of the edit control.

void CExEdit::OnMouseMove(UINT nFlags, CPoint point) 
{
     // TODO: Add your message handler code here and/or call default
     TRACKMOUSEEVENT mouseEvent;
 
     mouseEvent.cbSize = sizeof( TRACKMOUSEEVENT );
     mouseEvent.dwFlags = TME_HOVER | TME_LEAVE;
     mouseEvent.dwHoverTime = 0;
     mouseEvent.hwndTrack = m_hWnd;
     _TrackMouseEvent( &mouseEvent );
     CEdit::OnMouseMove(nFlags, point);
}

The following code is very important, in which we can change the background color, the text color, and others.

HBRUSH CExEdit::CtlColor(CDC* pDC, UINT nCtlColor) 
{
     // TODO: Change any attributes of the DC here
     drawEditFrame();
     
     pDC->SetTextColor( m_clrText );
     pDC->SetBkColor( m_clrBk );
     //pDC->SetBkMode( TRANSPARENT );
     // TODO: Return a non-NULL brush if the parent's handler should not be called
     return m_bkBrush;
}

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

guanghui wu


Member

Occupation: Web Developer
Location: China China

Other popular Edit Controls articles:

Article Top
You must Sign In to use this message board.
FAQ FAQ 
 
Noise Tolerance  Layout  Per page   
 Msgs 1 to 10 of 10 (Total in Forum: 10) (Refresh)FirstPrevNext
GeneralError with multiline edit PinmemberErnst Sauer5:54 4 Apr '08  
GeneralRe: Error with multiline edit Pinmemberguanghui wu20:09 4 Apr '08  
GeneralRe: Error with multiline edit PinmemberErnst Sauer10:11 5 Apr '08  
Generalrelease version crash of your sample code Pinmemberchris_liush23:35 31 Mar '08  
GeneralRe: release version crash of your sample code [modified] Pinmemberguanghui wu8:20 1 Apr '08  
GeneralBRUSH! Pinmemberbcde0319113021:29 31 Mar '08  
GeneralRe: BRUSH! PinmemberAllen.fan21:11 25 Feb '09  
GeneralRe: BRUSH! Pinmemberguanghui wu23:39 1 Mar '09  
GeneralSwitch Wrap on or off? Pinmemberpeterboulton8:21 29 Mar '08  
Generalgood work Pinmemberbughoho7:46 29 Mar '08  

General General    News News    Question Question    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

PermaLink | Privacy | Terms of Use
Last Updated: 29 Mar 2008
Editor: Smitha Vijayan
Copyright 2008 by guanghui wu
Everything else Copyright © CodeProject, 1999-2009
Web19 | Advertise on the Code Project