public void Destroy()
{
if (ieInstance != null)
{
try
{
Marshal.ReleaseComObject(ieInstance);
}
catch { }
}
if (_browser != null)
{
_browser.Dispose();
}
if (testHelp != null)
{
testHelp.Dispose();
}
testHelp = null;
_browser = null;
host = null;
ieInstance = null;
_mainHWND = IntPtr.Zero;
}
private void CheckUIHostRegistration()
{
lock (_uiHostRegisteredLock)
{
if (testHelp != null)
{
testHelp.StartInfo = this.StartInfo;
}
if (isUIHostRegistered || ieInstance == null)
{
return;
}
ICustomDoc cDoc = ieInstance.Document as ICustomDoc;
IOleObject oleObj = ieInstance.Document as IOleObject;
if (oleObj != null && cDoc != null)
{
IOleClientSite clientSite = null;
oleObj.GetClientSite(ref clientSite);
if (cDoc != null)
{
_browser = new BrowserIEImpl(ieInstance, _mainHWND, _canvasHWND);
testHelp = new IETestHelp(clientSite as IDocHostUIHandler, _browser, host);
cDoc.SetUIHandler(testHelp);
isUIHostRegistered = true;
}
}
}
}