I am trying to get a link to open in a new window or tab from my PDF using csharp/synfusion

I have the following code;

PdfUriAnnotation uriAnnotation = new PdfUriAnnotation(new RectangleF(intX + 4, intY, intWidth – 6, height), objSetting.LinkToGoTo);

page.Annotations.Add(uriAnnotation);

// Create JavaScript action to open the link in a new window.
string javaScript = “app.launchURL(‘” + objSetting.LinkToGoTo + “‘, true);”;
PdfJavaScriptAction jsAction = new PdfJavaScriptAction(javaScript);

//Create and add new launch Action to the document.
document.Actions.AfterOpen = jsAction;

//The text that is clicked to launch the link
page.Graphics.DrawString(objSetting.LinkText);

the link works, but does not go to a new window…please can anyone help?

thank you