WebBrowser.Print() wait until complete. .NET

.net, browser, c#, printing, vb.net

Solution

Check out the `PrintTemplateTeardown` event of the underlying unmanaged WebBrowser object. Sometimes that event gets fired multiple times but hopefully this will point you in the right direction. You need to add a reference to `Microsoft Internet Controls`.

Private Sub Print()
    AddHandler DirectCast(WebBrowser1.ActiveXInstance, SHDocVw.WebBrowser).PrintTemplateTeardown, AddressOf PrintDone
    WebBrowser1.Print()
End Sub
Private Sub PrintDone(ByVal obj As Object)
    Trace.WriteLine("printed")
    RemoveHandler DirectCast(WebBrowser1.ActiveXInstance, SHDocVw.WebBrowser).PrintTemplateTeardown, AddressOf PrintDone
End Sub

Problem

I am using a WebBrowser control in VB.NET and calling the Print() method. I am printing out using a PDF printer and when Print() is called it is not immediately kicked off (it waits until it has completed running code for the entire Sub or block. I need to make sure the file I am printing too is complete and continue process with this file, therefore, I would like to print on demand and get some status of when the operation is complete. I have tried usign printDocument and process without luck. Anyone have any ideas?

Original source