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Instantiate MSHTML and Parse/modify the DOM?

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De

05/06/2004 07:42:21

Mark Frank
Indianapolis, Indiana, États-Unis

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Information générale

Forum:

Visual FoxPro

Catégorie:

Codage, syntaxe et commandes

Titre:

Instantiate MSHTML and Parse/modify the DOM?

Divers

Thread ID:

00910310

Message ID:

00910310

Vues:

80

I need to programmatically parse and modify snippets of HTML on the fly using the DOM. I would like to do it invisibly and efficiently, i.e., just a parser to give me the DOM the way MSXML does for XML. It seems that MSHTML provides the capabilities to do that, but I have not been able to determine if it has a COM interface compatible with VFP. I need something like:

oParser=CreateObject("MSHTML.HTMLDocument")
cHTMLDocument="<HEAD></HEAD><BODY>" + cMyHTMLSnippet + "</BODY></HTML>"
oParser.DocumentHTML=cHTMLDocument    
&&  ... Wait for not busy, then...
nImages=oParser.Document.DOM.Images.Length
&& ...Do something with each image element, such as set height and width attribs
For i=0 to nImages-1
  oThisImage=oParser.Document.DOM.Images[i]
  etc...
Endfor
&& ... Extract the modified HTML (document.body.innerHTML)
cNewHTML=oParser.Document.DOM.body.innerHTML

I can do this, and have it working, by using the DHTMLEdit control and driving it programmatically, but it seems to insist on being instantiated as a form-based control in order to operate. So I have this unnecessary form creation/destruction (and hiding issues). Isn't there a better way? Thanks for any suggestions!

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