VS.NET 2005/webbrowser control and images.. | Tech Off

sc00ter
Always in motion the future is..

I've been trying to get an Image from an htmlelement (<IMG> tag). is there a way to convert over the IMG tag to an Image object in vs.net 2005 (vb)

Sure I can grab the url from the src attrib adn download that via webclient object, wb.downloaddata -> memorystream -> new image(ms) etc.. but since the webbrowser downloads everything anyways, wouldn't it be overkill to do that? There's got to be an easy way of doing this?

JohnAskew
9 girl in pink sweater

You want to pull the image out of memory after it's already been pulled down by the browser?

Neat idea. I can't help at all, though, sorry. What's cached?

sc00ter
Always in motion the future is..

You mentioned "What's Cached?"

Do you mean I could get it from the cache? If so How?

JohnAskew
9 girl in pink sweater

http://www.port80software.com/200ok/articles/177.aspx

I don't know. That link explains some about browser cache.

sc00ter
Always in motion the future is..

Ok, so if by loading the web site via WebBrowser control and then getting an image via WebClient, maybe that image is actually coming from the cache? Smiley if thats the case, then thats ok. Anything to cut down on the amount of data that needs to be dl'd.

I'll have to do some testing on this, this is just an pesonal app and won't be published anywhere, so even if I don't get the info I need, thats ok.

sc00ter
Always in motion the future is..

Well, it turns out..

it doesn't load images, so it gives me more control over images and allows me to dl only the ones I want. No double downloading. Smiley

dim wc as new webclient
dim ms as memorystream
dim img as image

    ms=new memorystream(wc.downloaddata(myURLtoIMAGE))
    img = image.fromstream(ms)
    ms.close

Is there a better way? Smiley

BeTeP

In reply to sc00ter

#Apr 4th, 2006 @ 2:47 PM

Hi
Is it possible to get the HTMLImgClass to an System.Drawing.Image. Without the additional HttpReqest?
The Webbrowser control might cache it some were. I need to fill the list view of downloaded images. Is there any way to this?

stevo_
Human after all

In reply to BeTeP

#Jun 4th, 2008 @ 1:52 AM

All http actions will go through the cache anyway, all you would be doing by asking for the url, would be querying the cache again..

The caching is abstracted but there is control over caching by one of the properties of the request (I believe).