//implementation of IServiceProvider
/*
* Defines a mechanism for retrieving a service object;
* that is, an object that provides custom support to other objects
* */
public int QueryService(ref Guid guidservice, ref Guid interfacerequested, out IntPtr ppserviceinterface)
{
int hr = HRESULT.E_NOINTERFACE;
Guid iid_htmledithost = new Guid("3050f6a0-98b5-11cf-bb82-00aa00bdce0b");
Guid sid_shtmledithost = new Guid("3050F6A0-98B5-11CF-BB82-00AA00BDCE0B");
if ((guidservice == sid_shtmledithost) & (interfacerequested == iid_htmledithost))
{
CSnap snapper = new CSnap();
ppserviceinterface = Marshal.GetComInterfaceForObject(snapper, typeof(IHTMLEditHost));
if (ppserviceinterface != IntPtr.Zero)
{
hr = HRESULT.S_OK;
}
}
else
{
ppserviceinterface = IntPtr.Zero;
}
return(hr);
}
public void CloseDocument()
{
try
{
container.releaseWndProc();
container.Resize -= new EventHandler(this.Container_Resize);
if (m_document == null) return;
try
{
//this may raise an exception, however it does work and must
//be called
if (view != null)
{
view.Show(-1);
view.UIActivate(-1);
view.SetInPlaceSite(null);
view.CloseView(0);
}
}
catch (Exception e)
{
Debug.WriteLine("CloseView raised exception: " + e.Message);
}
try
{
//this could raise an exception too, but it must be called
m_document.Close((int)tagOLECLOSE.OLECLOSE_NOSAVE);
}
catch (Exception e)
{
Debug.WriteLine("Close document raised exception: " + e.Message);
}
m_document.SetClientSite(null);
win32.OleLockRunning(m_document, false, false);
if (this.iAdviseCookie != 0)
{
m_document.Unadvise(this.iAdviseCookie);
}
if (this.iEventsCookie != 0)
{
m_document.Unadvise(this.iEventsCookie);
}
if (this.iPropertyNotifyCookie != 0)
{
m_document.Unadvise(this.iPropertyNotifyCookie);
}
if (container.changeCookie != 0)
{
((IMarkupContainer2)m_document).UnRegisterForDirtyRange(container.changeCookie);
container.changeCookie = 0;
}
//release COM objects
int RefCount = 0;
if (m_document != null)
do
{
RefCount = Marshal.ReleaseComObject(m_document);
} while (RefCount > 0);
if (view != null)
do
{
RefCount = Marshal.ReleaseComObject(view);
} while (RefCount > 0);
if (activeObject != null)
do
{
RefCount = Marshal.ReleaseComObject(activeObject);
} while (RefCount > 0);
if (snapper != null)
{
IntPtr ppinterface = Marshal.GetComInterfaceForObject(snapper, typeof(IHTMLEditHost));
if (ppinterface != null)
{
do
{
RefCount = Marshal.Release(ppinterface);
} while (RefCount > 0);
}
snapper = null;
}
m_document = null;
view = null;
activeObject = null;
container.mHtmlDoc = null;
container.mDocHTML = null;
}
catch (Exception e)
{
Debug.WriteLine("CloseDocument raised exception: " + e.Message);
}
}
public void CloseDocument()
{
try
{
container.releaseWndProc();
container.Resize -= new EventHandler(this.Container_Resize);
if (m_document == null)
{
return;
}
try
{
//this may raise an exception, however it does work and must
//be called
if (view != null)
{
view.Show(-1);
view.UIActivate(-1);
view.SetInPlaceSite(null);
view.CloseView(0);
}
}
catch (Exception e)
{
Debug.WriteLine("CloseView raised exception: " + e.Message);
}
try
{
//this could raise an exception too, but it must be called
m_document.Close((int)tagOLECLOSE.OLECLOSE_NOSAVE);
}
catch (Exception e)
{
Debug.WriteLine("Close document raised exception: " + e.Message);
}
m_document.SetClientSite(null);
win32.OleLockRunning(m_document, false, false);
if (this.iAdviseCookie != 0)
{
m_document.Unadvise(this.iAdviseCookie);
}
if (this.iEventsCookie != 0)
{
m_document.Unadvise(this.iEventsCookie);
}
if (this.iPropertyNotifyCookie != 0)
{
m_document.Unadvise(this.iPropertyNotifyCookie);
}
if (container.changeCookie != 0)
{
((IMarkupContainer2)m_document).UnRegisterForDirtyRange(container.changeCookie);
container.changeCookie = 0;
}
//release COM objects
int RefCount = 0;
if (m_document != null)
{
do
{
RefCount = Marshal.ReleaseComObject(m_document);
} while (RefCount > 0);
}
if (view != null)
{
do
{
RefCount = Marshal.ReleaseComObject(view);
} while (RefCount > 0);
}
if (activeObject != null)
{
do
{
RefCount = Marshal.ReleaseComObject(activeObject);
} while (RefCount > 0);
}
if (snapper != null)
{
IntPtr ppinterface = Marshal.GetComInterfaceForObject(snapper, typeof(IHTMLEditHost));
if (ppinterface != null)
{
do
{
RefCount = Marshal.Release(ppinterface);
} while (RefCount > 0);
}
snapper = null;
}
m_document = null;
view = null;
activeObject = null;
container.mHtmlDoc = null;
container.mDocHTML = null;
}
catch (Exception e)
{
Debug.WriteLine("CloseDocument raised exception: " + e.Message);
}
}
//implementation of IServiceProvider
/*
* Defines a mechanism for retrieving a service object;
* that is, an object that provides custom support to other objects
* */
public int QueryService(ref System.Guid guidservice, ref System.Guid interfacerequested, out IntPtr ppserviceinterface)
{
int hr = HRESULT.E_NOINTERFACE;
System.Guid iid_htmledithost = new System.Guid("3050f6a0-98b5-11cf-bb82-00aa00bdce0b");
System.Guid sid_shtmledithost = new System.Guid("3050F6A0-98B5-11CF-BB82-00AA00BDCE0B");
if ((guidservice == sid_shtmledithost) & (interfacerequested == iid_htmledithost))
{
this.snapper = new CSnap();
ppserviceinterface = Marshal.GetComInterfaceForObject(snapper, typeof(IHTMLEditHost));
if (ppserviceinterface != IntPtr.Zero)
{
hr = HRESULT.S_OK;
}
}
else
{
ppserviceinterface = IntPtr.Zero;
}
return hr;
}