Re: xmlRequest.onprogress questions

Michael Vincent van Rantwijk wrote:
> Christian Biesinger wrote:
>> Michael Vincent van Rantwijk wrote:
>>> Eh, how? Like this:
>>>
>>> aEvent.QueryInterface(Components.interfaces.nsIDOMLSProgressEvent).position 
>>>
>>
>> Yes.
> 
> I got this error:
> 
> Error: [JavaScript Error: "[Exception... "Could not convert JavaScript 
> argument (NULL value cannot
> be used for a C++ reference type) arg 0 [nsISupports.QueryInterface]" 
> nsresult:
> "0x8057000b (NS_ERROR_XPC_BAD_CONVERT_JS_NULL_REF)"  location: "JS frame 
> :: ...
> 
> so I checked nsIDOMLSProgressEvent but that is undefined!

and the output for this:

dump("\nnsIDOMEvent: " + Components.interfaces.nsIDOMEvent);
dump("\nnsIDOMLSProgressEvent: + 
Components.interfaces.nsIDOMLSProgressEvent);

is this:

nsIDOMEvent: nsIDOMEvent
nsIDOMLSProgressEvent: undefined

in SeaMonkey build 2005092006

I hope this helps,
Michael