WebBrowser OCX - Invalid handle. Not initialized or points to a deleted object. (3135)

[Richard Clarke]

Hi,

Newbie question!

I have a webbrowser control on a form and it displays a PDF. The application is going onto a touchscreen computer and I need the user to able to scroll through the document.

Have set a variable:-

DEFINE PRIVATE VARIABLE hWebBrowser AS system.windows.forms.htmldocument.

In my method to scroll:-
hWebBrowser = webBrowser1ocument.
hwebBrowser:WINDOW:ScrollTo( 0,300).

Error occurs on the ScrollTo.

Help please!

TIA

Richard

 

[RealHeavyDude]

Is this Internet Explorer 8+ ? If yes, then you might have the multi-tabbing issue.

http://blogs.msdn.com/b/askie/archi...a-new-process-with-internet-explorer-8-0.aspx

Heavy Regards, RealHeavyDude.

 

[Richard Clarke]

Is this Internet Explorer 8+ ? If yes, then you might have the multi-tabbing issue.

http://blogs.msdn.com/b/askie/archi...a-new-process-with-internet-explorer-8-0.aspx

Heavy Regards, RealHeavyDude.

Hi,

No only a single tab open displaying a PDF.

Thanks.

Richard.

 

[Richard Clarke]

Have found the answer.

Set the webbrowser control as the activecontrol
then
System.Windows.Forms.SendKeys:Send( "~{PGUP~}").
System.Windows.Forms.SendKeys:Send( "~{PGDN~}").

Discovered that the ~ character is need to make Progress read then{} as lietral characters.