Retrieve return value of a Javascript function in the WebBrowser control in vb6

Question

I have a vb6 application,

I make a function call with WebBrowser script but I need to get the return value of that function

my current function is

v = WebBrowser1.Document.parentWindow("v = function(){return callOther();};v()");

Then, i need the v value.. the posible value is javascript function.

How to retrieve "v", my test response with Error 91 (Object variable with block variable no set).. i'm beginner with vb6.

Related question: How to retrive form value using execScript in VB6? — Deanna
– Deanna, Commented Apr 5, 2013 at 9:29

Ilya Kurnosov · Accepted Answer · 2013-04-04 00:33:03Z

10

Assign return value of your JavaScript function to JavaScript variable.
Use execScript method of WebBrowser.Document.ParentWindow to call your JavaScript code.

Now retrieve value of the variable via WebBrowser.Document.Script.<JavaScript variable name, case-sensitive> in VB6.

Private Sub cmdJsFunc_Click()
    Dim retVal As String

    Call WebBrowser1.Document.parentWindow.execScript("v = function(){return 3.14;}; tempJsVar=v();")
    retVal = WebBrowser1.Document.Script.tempJsVar

    MsgBox retVal
End Sub

answered Apr 4, 2013 at 0:33

Ilya Kurnosov

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Comments

Mark Bertenshaw · Accepted Answer · 2012-01-26 13:25:29Z

1

Try:

Set v = WebBrowser1.Document.parentWindow("v = function(){return callOther();};v()")

answered Jan 26, 2012 at 13:25

Mark Bertenshaw

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