How would I show raw html inside of a text box?

Try this...

Use Entities, instead of <, ", and >, because I don't think they will work, they will just show up HTML code. Entities can be found here. http://www.w3schools.com/html/html_entities.asp

<textarea rows="5" cols="30">
<img src="yourimagesource.type">
</textarea>

<textarea>HTML CODE HERE</textarea>

<form>
<textarea cols="48" rows="3">
<img width="100"src="your codes inside the textarea tags but these cannot include textarea tags"height="100">
</textarea>
</form>

does this make sense?
also be sure to include height and width tags it makes loading faster Also arranging these elements in the order of: width, src, height will make it more quickly interpreted by Internet Explorer!

you use <xmp></xmp> tags. but they are spacey. it removed hte next for a text box...

or here is the coed for a text box.

<input id='box name' type='text' style='width: (WIDTH NUMBER)px; height: (HEIGHT NUMBER)px;'value='madd text here.'><br>

Here is the raw code:
<textarea>"insert picture html here"</textarea>

Use the appropriate html entities (http://w3schools.com/tags/ref_entities.asp) so:

< becomes &lt;
> becomes &gt;

you'll write & lt; in the page's code, but it will display as < on the page.

So for a whole image tag you'd end up with something like

&lt;img src=&quot;path&quot;&gt;

which then displays as:
<img src="path">

Place <textarea> tags around the code. You can further specify the height and width of the text box using col="#" and row="#" inside the <textarea> tag.

ie. <textarea col="10" row="10">[code]</textarea>

put the code in notepad then uplaod to photobucket that notepad doc(name it htmlcode.jpg so photobucket thinks its a pic)thenyou know the rest