By default, the CaptionFormat property is exText.  Use the CaptionFormat property to allow built-in HTML tags to the group's caption. Use the Caption property to access the group's caption. Use the AddItem method to add a new item to the group. The Caption property supports the following built-in HTML tags:

• <b> bold </b>
• <u> underline </u>
• <s> strikeout </s>
• <i> italic </i>
• <fgcolor = FF0000> fgcolor </fgcolor>
• <bgcolor = FF0000> bgcolor </bgcolor>
• <br> breaks a line. 
• <solidline> draws a solid line
• <dotline> draws a dotted line
• <upline> draws the line to the top of the text line
• <r> aligns the rest of the text line to the right side
• <img>number</img> inserts an icon inside the item's caption. The number indicates the index of the icon being inserted.
• <img>key[:width]</img> inserts a custom size picture being loaded using the HTMLPicture property. The Key parameter indicates the key of the picture being displayed. The Width parameter indicates a custom size, if you require to stretch the picture, else the original size of the picture is used.
• <font face;size>text </font> displays portions of text with a different font and/or different size. For instance, the <font Tahoma;12>bit</font> draws the bit text using the Tahoma font, on size 12 pt. If the name of the font is missing, and instead size is present, the current font is used with a different size. For instance, <font ;12>bit</font> displays the bit text using the current font, but with a different size.

The following VB sample adds an HTML item:

With ListBar1.Groups(0)
    With .AddItem("This is an <fgcolor=000080><b>HTML</b></fgcolor> item.")
        .CaptionFormat = exHTML
    End With
End With

The following C++ sample adds an HTML item:

COleVariant vtMissing; V_VT( &vtMissing ) = VT_ERROR;
CGroup group = m_listbar.GetGroups().GetItem( COleVariant( long(0) ) );
CItem item = group.AddItem( "This is an <fgcolor=000080><b>HTML</b></fgcolor> item.", vtMissing );
item.SetCaptionFormat( 1 /*exHTML*/ );

The following VB.NET sample adds an HTML item:

With AxListBar1.Groups(0)
    With .AddItem("This is an <fgcolor=000080><b>HTML</b></fgcolor> item.")
        .CaptionFormat = EXLISTBARLib.CaptionFormatEnum.exHTML
    End With
End With

The following C# sample adds an HTML item:

EXLISTBARLib.Item item = axListBar1.Groups[0].AddItem("This is an <fgcolor=000080><b>HTML</b></fgcolor> item.", null);
item.CaptionFormat = EXLISTBARLib.CaptionFormatEnum.exHTML;

The following VFP sample adds an HTML item:

With thisform.ListBar1.Groups(0)
    With .AddItem("This is an <fgcolor=000080><b>HTML</b></fgcolor> item.")
        .CaptionFormat = 1 && exHTML
    EndWith
EndWith