Print web browser control within vb.net form

[Kenny62]

Hi - i'm trying to printing the contents of a web browser control. Users want the prompt dialog displayed before printing.

I done something like this:

AxWebBrowser.ExecWB(SHDocVw.OLECMDID.OLECMDID_PRINT, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_PROMPTUSER, 0, 0)

If i on clicking the cancel button on this dialog i get a runtime error with the following call stack:

Trying to revoke a drop target that has not been registered
Original Source::Interop.SHDocVw
at SHDocVw.IWebBrowser2.ExecWB(OLECMDID cmdID, OLECMDEXECOPT cmdexecopt, Object& pvaIn, Object& pvaOut)
at AxSHDocVw.AxWebBrowser.ExecWB(OLECMDID cmdID, OLECMDEXECOPT cmdexecopt, Object& pvaIn, Object& pvaOut)
at wfm.frmInfo2.btnPrint_Click(Object sender, EventArgs e) in ...

Does anyone know why this error occurs and how do i fix it.

(If i use OLECMDEXECOPT_DONTPROMPTUSER in code - there are no errors - the print dialog is not displayed. I have looked at previous post ...)

Thanks for any help in advanced, Ken

 

[chrissie1]

AxWebBrowser1.ExecWB(SHDocVw.OLECMDID.OLECMDID_PRINT, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_PROMPTUSER)

I use this and it works fine.

Christiaan Baes
Belgium

If you want to get an answer read this FAQ faq796-2540
There's no such thing as a winnable war - Sting

 

[Kenny62]

Thanks for the suggestion - i now get a diffent runtime error:
Exception has been thrown by the target of an invocation.
Original Source::mscorlib
at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess)
at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean verifyAccess)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
at System.Reflection.MethodInfo.Invoke(Object obj, Object[] parameters)
at AxSHDocVw.AxWebBrowser.ExecWB(OLECMDID cmdID, OLECMDEXECOPT cmdexecopt)
at wfm.frmInfo2.btnPrint_Click(Object sender, EventArgs e) in

Any idea - this happens when i click the cancel button on the print dialog

Thanks for any help in advanced, Ken