It just occurred to me that you are just using a standard tooltip control so as it is it will not support any html tags. Maybe you should consider setting its style to Balloon (TTS_BALLOON) which will allow the kml's name entry to be bolded at the top. It also has the benefit of supporting an icon. It has been far too long since I wrote any programs using tooltips, need to bit of research on this but as I recall the title of a balloon does support html tags?
You must be parsing the text yourself as when I try to use "\r\n" it just displays the text instead of adding a line break, however if I use <br></br> it does insert a line break. Also noticed that the closing </br> is required which technically isn't required for html. The reason I mention this is all the POI's in the ORBX kml's use this method. See picture below...
- HTML-Tags.jpg (93.66 KiB) Viewed 3859 times
Edit: Open image in new tab to get a larger view of it.
Edit2: Just realized in the image above the line breaks are not closed. Also the <B> and </B> are for bolded text. These should be stripped for a tooltip control. Here is a list of other possibilities...
Code: Select all
Styles: <i>Italics</i>, <b>Bold</b>, <u>Underlined</u>,
<s>Strike Out</s>, subscript<sub>subscript</sub>,
superscript<sup>superscript</sup>,
<big>Big</big>, <small>Small</small>, <tt>Typewriter</tt>,
<em>Emphasized</em>, <strong>Strong</strong>, <code>Code</code>