Extracting elements from Web Page using WebBrowser

[jmsrickland]

I found this code on the Net and it works for extracting hyperlinks from a Web Page but how do I do something similar for Images?

Also, any reason why the author used Navigate2 instead of just Navigate. What's the difference?

Dim d As New HTMLDocument
 '
 ' You need to add a Reference to Microsoft HTML Objects Library
 '
Private Sub Command1_Click()
 WebBrowser1.Navigate2 "http://www.somewebsite.com/......./"
End Sub

Private Sub Command2_Click()
 Dim HyperLinks As String
 
 Set d = WebBrowser1.Document
 
 HyperLinks = ""
 
 For i = 0 To d.links.length - 1
   l = d.links.Item(i)
   HyperLinks = HyperLinks & vbNewLine & "<a href='" & l & "'>" & l & "</a>" & "<br>"
 Next
 
 Text1.Text = Text1 & HyperLinks
End Sub

[johnaau]

In place of "links" you could use any of the DHTML terms, so you could use "images" to extract the images.

Perhaps this helps regarding the use of Navigate2:

The Navigate2 method extends the Navigate method to support browsing on special folders—such as Desktop and My Computer—that are represented by a pointer to an item identifier list (PIDL). However, this is not applicable to the Visual Basic programming language.

[jmsrickland]

I did that. I used images in place of links and all I got back was something that read "[object]" and I didn't know what to do with that return value.

[Edgemeal]

Not sure this helps, but I tried the one posted by iPrank and it does get the images,
Saving Web Page Images In Temp Folder!
http://www.vbforums.com/showthread.php?p=2268392

[jmsrickland]

Thanks, edgemeal, that link was perfect and I used the one posted by iPrank.

[Edgemeal]

Thanks, edgemeal, that link was perfect and I used the one posted by iPrank.

Glad I could help,
Would be nice to know if it's possible to get the images directly from the webrowser control instead of having to download them again, since the images are already downloaded right? Anybody?

[jmsrickland]

Yes, it would be nice. They are in the Internet Temp folders by default.

BTW: How does one know to add that .src parameter? That's where I get lost since it didn't show up when I browsed through the VB Object Browser.

WebBrowser1.Document.images.Item(i).src

[iPrank]

Would be nice to know if it's possible to get the images directly from the webrowser control instead of having to download them again, since the images are already downloaded right? Anybody?

You'll need to copy the files from local internet cache. Search for the following APIs at http://allapi.mentalis.org/
FindFirstUrlCacheEntry
FindNextUrlCacheEntry

BTW, URLDownloadToFile uses IE cache. If the images were successfully loaded in the WB control, they will not be downloaded again.

How does one know to add that .src parameter? That's where I get lost since it didn't show up when I browsed through the VB Object Browser.

You'll not get it in Object Browser.
See my Webbrowser related post in this thread for links to some great tutorials: http://www.vbforums.com/showthread.php?t=380879

Also in your MSDN CD look for topics like IHTMLxxxx reference (like IHTMLDocumentElement). In older MSDN CDs you'll get them under 'Web Workshop'.