MFC Edit Control Color

Question

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I have a MFC Edit control which i use to output multiple lines of text onto. I can color the text but it only colors everything, it won't color individual lines of text.

I know this is because i treat the text as one big buffer, but is there a way around this?

My Class:

C++

CColorEdit::CColorEdit()
{
	BackColor = GetSysColor( COLOR_3DFACE );
	TextColor = RGB( 0, 0, 0 );
	BackBrush.CreateSolidBrush( BackColor );
}

CColorEdit::~CColorEdit()
{
}

void CColorEdit::SetReadOnly ()
{
	CEdit::SetReadOnly( true );
	SetBGColor( RGB( 255, 255, 255 ) );
	SetTextColor( RGB( 0, 0, 0 ) );
}

void CColorEdit::SetTextColor ( COLORREF Color )
{
	TextColor = Color;
	RedrawWindow();
}

void CColorEdit::SetBGColor ( COLORREF Color )
{
	BackColor = Color;

	BackBrush.DeleteObject();
	BackBrush.CreateSolidBrush( BackColor );
	RedrawWindow( );
}

HBRUSH CColorEdit::CtlColor(CDC* pDC, UINT nCtlColor)
{
	pDC->SetBkColor( BackColor ); 
	pDC->SetTextColor( TextColor );
	nCtlColor = CTLCOLOR_EDIT;

	return BackBrush;
}

BEGIN_MESSAGE_MAP(CColorEdit, CEdit)
	ON_WM_CTLCOLOR_REFLECT()
END_MESSAGE_MAP()

I call like:

C++

Tools.AppendWindowText( RGB( 0, 192, 0 ), "[%s] %s", CurrentService->Status, CurrentService->Name );

Here's the function:

C++

void CTools::AppendWindowText( COLORREF Color, char* AppendText, ... )
{
    static char AppendData[ 256 ];
    static char CurrentData[ 2048000 ];
    ZeroMemory( CurrentData, sizeof( CurrentData ) );
    ZeroMemory( AppendData, sizeof( AppendData ) );

    va_list valist;
    va_start( valist, AppendText );
    _vsnprintf( AppendData, sizeof( AppendData ) - strlen( AppendData ), AppendText, valist );
    va_end( valist );

    int CurrentTextLen = pClientDlg->m_ResultsWindow.GetWindowTextLengthA( );
    int AppendDataLen = strlen( AppendData );
    int DataLength = ( CurrentTextLen + AppendDataLen + 2 );

    pClientDlg->m_ResultsWindow.GetWindowTextA( CurrentData, DataLength );
    if ( CurrentTextLen > 0 ) { strcat( CurrentData, "\r\n" ); }

    strcat( CurrentData, AppendData );
    pClientDlg->m_ResultsWindow.SetTextColor( Color );
    pClientDlg->m_ResultsWindow.SetWindowTextA( CurrentData );
}

Thanks

Posted 9-Sep-12 6:37am

sjsteve33171

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JJMatthews · Accepted Answer · 2012-09-10T04:07:00

Hello, I believe you have 4 options:

1) Use a rich edit control
2) Use a listbox
3) Draw the text yourself (but I dont see in the code above a mechanism for storing which code gets what color)
4) Use html and a html view (if your application is using frame windows)

what your trying to do can be done, just needs a little extra code