private void Zoom(object zoomPercent)
{
// grab a handle to the underlying ActiveX object
IServiceProvider serviceProvider = null;
if (this.webReport.Document != null)
{
serviceProvider = (IServiceProvider)this.webReport.Document;
}
Guid serviceGuid = SID_SWebBrowserApp;
Guid iid = typeof(SHDocVw.IWebBrowser2).GUID;
SHDocVw.IWebBrowser2 browserInst = (SHDocVw.IWebBrowser2)serviceProvider.QueryService(ref serviceGuid, ref iid);
while (browserInst.QueryStatusWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM) != (SHDocVw.OLECMDF.OLECMDF_SUPPORTED & SHDocVw.OLECMDF.OLECMDF_ENABLED))
{
}
// send the zoom command to the ActiveX object
browserInst.ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER, ref zoomPercent, IntPtr.Zero);
}
