mshtml and frames/iframes

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mshtml and frames/iframes

P: n/a

michelqa

Hi,

I'm doing a kind of control picker like the one in spy++ but for html

document.

When the control picker is over an IFRAME, the mshtml function

ElementFromPoint return an IFrame element.

How can I identify this particular frame/iframe in the frame

collection??? I can only select frame in the framecollection by using

the index or the frame name but the frame name is not always defined.

This is the part of code that try call recursivly

ElementFromPoint...only the last section of the code is releated to my

question

using mshtml;

//..

//--- Get document

IHTMLDocument2 HtmlDoc;

IHTMLDocument3 HtmlDoc; // to get HtmlDoc3.documentElement.ScrollTop,

ScrollLeft

HtmlDoc = GetIHTMLDocumentFromHandle(found); /found=internet

explorer_server handle

HtmlDoc3 = GetIHTMLDocumentFromHandle(found);

//--- Get the elementfromPoint in the main page

IHTMLElement Element;

Point pt;

pt = new Point(Control.MousePosition.X, Control.MousePosition.Y);

ScreenToClient(found, ref pt);

Element = HtmlDoc.elementFromPoint((int)pt.X, (int)pt.Y);

//--- Determine real element size and position relative to the main

page.

int ElementLeft = Element.offsetLeft;

int ElementTop = Element.offsetTop;

mshtml.IHTMLElement TmpElem = Element.offsetParent;

while (TmpElem != null)

{

ElementLeft = ElementLeft + TmpElem.offsetLeft;

ElementTop = ElementTop + TmpElem.offsetTop;

TmpElem = TmpElem.offsetParent;

}

//--- Highlight element

HighlightHtmlElement(found, ElementLeft - ScrollLeft, ElementTop -

ScrollTop, (int)Element.offsetWidth, (int)Element.offsetHeight);

//This is where my nightmare begins

if (Element.TagName.ToString().ToLower()=="iframe")

{

// Need to get an IHtmlDocument2 that point to the correct frame.

FramesCollection frm = (mshtml.FramesCollection)HtmlDoc.frames;

for (int Cnt=0;Cnt<frm.Length)

{

object FrameRefIndex=Cnt; //This is the

mshtml.IHTMLWindow2 HtmlWin = (mshtml.IHTMLWindow2)frm.item(ref

FrameRefIndex);

Trace.write("Inner html of the

iframe="+HtmlWin.Document.Body.InnerHtml.ToString( ));

// If (the framed document is the one contained in the iframe

tag returned by ElementFromPoint)

// doing my stuff to highlight the elements

}

MY QUESTION : In the last line of code it look like there is no way to

identify which framed document is associated with my iframe element

returned by ElementFromPoint.

I'm desesperatively working on this frame issue since many many many

many hours :( Really need help of an mshtml good samaritin expert.

Thanks

Sep 15 '08 #1

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P: n/a

michelqa

On Sep 15, 1:51*am, michelqa <miche...@yahoo.cawrote: Hi,

*I'm doing a kind of control picker like the one in spy++ but for html

document.

When the control picker is over an IFRAME, *the mshtml function

ElementFromPoint return an IFrame element.

How can I identify this particular frame/iframe in the frame

collection??? I can only select frame in the framecollection by using

the index or the frame name but the frame name is not always defined.

This is the part of code that try call recursivly

ElementFromPoint...only the last section of the code is releated to my

question

using mshtml;

//..

//--- Get document

IHTMLDocument2 HtmlDoc;

IHTMLDocument3 HtmlDoc; // to get HtmlDoc3.documentElement.ScrollTop,

ScrollLeft

HtmlDoc = GetIHTMLDocumentFromHandle(found); * /found=internet

explorer_server handle

HtmlDoc3 = GetIHTMLDocumentFromHandle(found);

//--- Get the elementfromPoint in the main page

IHTMLElement Element;

Point pt;

pt = new Point(Control.MousePosition.X, Control.MousePosition.Y);

ScreenToClient(found, ref pt);

Element = HtmlDoc.elementFromPoint((int)pt.X, (int)pt.Y);

//--- Determine real element size and position relative to the main

page.

int ElementLeft = Element.offsetLeft;

int ElementTop = Element.offsetTop;

mshtml.IHTMLElement TmpElem = Element.offsetParent;

while (TmpElem != null)

{

* * * * ElementLeft = ElementLeft + TmpElem.offsetLeft;

* * * * ElementTop = ElementTop + TmpElem.offsetTop;

* * * * TmpElem = TmpElem.offsetParent;

}

//--- Highlight element

HighlightHtmlElement(found, ElementLeft - ScrollLeft, ElementTop -

ScrollTop, (int)Element.offsetWidth, (int)Element.offsetHeight);

//This is where my nightmare begins

if (Element.TagName.ToString().ToLower()=="iframe")

{

* * // Need to get an IHtmlDocument2 that point to the correct frame.

* * FramesCollection frm = (mshtml.FramesCollection)HtmlDoc.frames;

* * for (int Cnt=0;Cnt<frm.Length)

* * {

* * * *object FrameRefIndex=Cnt; * *//This is the

* * * *mshtml.IHTMLWindow2 HtmlWin = (mshtml.IHTMLWindow2)frm.item(ref

FrameRefIndex);

* * * *Trace.write("Inner html of the

iframe="+HtmlWin.Document.Body.InnerHtml.ToString( ));

* * * *// If (the framed document is the one contained in the iframe

tag returned by ElementFromPoint)

* * *// doing my stuff to highlight the elements

* *}

}

MY QUESTION : In the last line of code it look like there is no way to

identify which framed document is associated with my iframe element

returned by ElementFromPoint.

I'm desesperatively working on this frame issue since many many many

many hours :( *Really need help of an mshtml good samaritin expert.

ThanksThe only way I can imagine is to manually scan all document element...

pseudo maybe look like this :

FrameIndex=0

foreach element in the document

{

if (elment TagName="iframe" or "frame")

{

if the element got the same offsetleft an offsettop as the item

returned by elementfrompoint= break the loop

FrameIndex++

}

FrameIndex will be my frameindex and now i will ***MAY*** be able to

identify the right frame....

but this assume that the frame collection parse all the frame exactly

the same way as my application when parsing each element and counting

my own index

I'm sure it's not the right way to do this :(

Sep 15 '08 #2

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