_IEAction($oIE,"refresh") error when trying to refresh a webpage

[CRSounds]

Hi All,

This is my first time posting, so I hope you forgive me if I step on any toes. I did a search for help with this and did not come up with anything relevant. The error I am receiving is:

"IE.au3 V2.4-0 Error from function _IETagNameAllGetCollection, $_IEStatus_InvalidObjectType".

It occurs when I run the following code. The code simply tries to extract an artist name and song title from an XM Radio web page and do so periodically (as the songs change). Any and all help is appreciated.

#include <IE.au3>
;The purpose of this script is to continously get the current artist and track name
;for transmission to another device that is listening to a standalone XM radio receiver

;turn off image downloads to allow text portion of page to load faster
$sIERegImg = RegRead("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main","Display Inline Images")  ;get current setting for image download
RegWrite("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main","Display Inline Images","REG_SZ","no") ;turn off images in downloads

$temp=0  ;just a temp variable
$oIE = _IECreate("http://www.xmradio.com/onxm/channelpage.xmc?ch=25",1,0,1,1);dont try to attach(0), hide browser window(0), wait for page to load(1), bring window into focus(1)
$oDiv = _IEGetObjById ($oIE, "on-xm-pad-data") ;on-xm-pad-data is the ID for the artist + Song name data
$oChanName = _IEGetObjById ($oIE, "channel-nav")


While 1
    $oElements = _IETagNameAllGetCollection ($oChanName) ;get all elements from the channel-nav level
    $oCount = @extended 
    ;ConsoleWrite("Number of Elements is " & $oCount & @CR) ;just get the number of elements within this collection
    
    $oElement = _IETagNameAllGetCollection ($oChanName,0)  ;channel is the 0th element returned
    ConsoleWrite("Channel is " & $oElement.innerText & @CR)
    $oElement = _IETagNameAllGetCollection ($oChanName,6)  ;station is the 6th element returned (rel 0)
    ConsoleWrite("Station is """ & $oElement.innerText & """" & @CR)

    ConsoleWrite("   ARTIST   -  TITLE" & @CR & _IEPropertyGet($oDiv, "innertext") & @CR) ;print the artist and title on the line below this
    _IEAction($oIE,"refresh") ;refresh the page
    _IELoadWait ($oIE)
    Sleep(5000)
    if $temp > 200 then ExitLoop
    $temp = $temp + 1   
;   _IEQuit ($oIE)  ;closes browser session (but doing this takes a long time between iterations because the browser has to load again)

WEnd
_IEQuit ($oIE)  ;closes browser session
RegWrite("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main","Display Inline Images","REG_SZ",$sIERegImg) ;reset IE image setting to original

Regards

CR

[DaleHohm]

"IE.au3 V2.4-0 Error from function _IETagNameAllGetCollection, $_IEStatus_InvalidObjectType"

When IE.au3 checks for errors like thi one, it checks first to see if the variable is an object and then if it is the right type of object... in this case it checks to see if it is an IE object (that it can drill into to get a document object), a document or a document element. It passed the initial object test and failed the second test in this case.

It doesn't seem to make much sense that it would fail the second test looking at your code, so I'll suggest that you likely have a page that is releading on its own and is invalidating objects as we try to examine them.

My suggestion would be that you use _IEErrorHandlerRegister() to allow you to make such errors non-fatal and allow you to trap the condition on your own and retry. Some additional use of _IELoadWait() may also be in order to again try to insure the page is quiescent.

Dale

[CRSounds]

Hi Dale,

Thanks for the help. When I looked at the code again I started to juggle lines that were in the loop against those that were out of the loop. Not sure why this worked but here is my follow up which is working now. Hopefully someone else can benefit from my lesson learned.

Thanks for your help, and the great work on IE.AU3

Regards

Carlton

#include <IE.au3>
;The purpose of this script is to continously get the current artist and track name
;for transmission to another device that is listening to a standalone XM radio receiver

;turn off image downloads to allow text portion of page to load faster
$sIERegImg = RegRead("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main","Display Inline Images")  ;get current setting for image download
RegWrite("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main","Display Inline Images","REG_SZ","no") ;turn off images in downloads

$temp=0  ;just a temp variable
$oIE = _IECreate("http://www.xmradio.com/onxm/channelpage.xmc?ch=25",1,0,1,1);dont try to attach(0), hide browser window(0), wait for page to load(1), bring window into focus(1)


While $temp < 200 ;loop for some arbitrary number of times
    $oChanName = _IEGetObjById ($oIE, "channel-nav")
    $oDiv = _IEGetObjById ($oIE, "on-xm-pad-data") ;on-xm-pad-data is the ID for the artist + Song name data
    $oElements = _IETagNameAllGetCollection ($oChanName) ;get all elements from the channel-nav level
    $oCount = @extended 
    ;ConsoleWrite("Number of Elements is " & $oCount & @CR) ;just get the number of elements within this collection
    
    $oElement = _IETagNameAllGetCollection ($oChanName,0)  ;channel is the 0th element returned
    ConsoleWrite("Channel is " & $oElement.innerText & @CR)
    $oElement = _IETagNameAllGetCollection ($oChanName,6)  ;station is the 6th element returned (rel 0)
    ConsoleWrite("Station is """ & $oElement.innerText & """" & @CR)

    ConsoleWrite("   ARTIST   -  TITLE" & @CR & _IEPropertyGet($oDiv, "innertext") & @CR) ;print the artist and title on the line below this
    _IEAction($oIE,"refresh") ;refresh the page
    _IELoadWait ($oIE)
    Sleep(5000)
    $temp = $temp + 1   
WEnd
_IEQuit ($oIE)  ;closes browser session
RegWrite("HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main","Display Inline Images","REG_SZ",$sIERegImg) ;reset IE image setting to original