I have hidden those features in the 2nd row of the toolbar under my name and status. You can see the 3 buttons, Share primary desktop, Stop Sharing, and a pull down that contains the other monitors and running apps.
Let's first start with the code to populate the combo, I redo this on a timer, as applications you open after the first launch would not display otherwise.
Task.Factory.StartNew(() =>
{
System.Threading.Thread.Sleep(1000);
this.Dispatcher.BeginInvoke((Action)delegate()
{
cbSharedResources.Items.Clear();
try
{
_sharingModality = _conversation.Modalities[ModalityTypes.ApplicationSharing] as ApplicationSharingModality;
foreach (SharingResource s in _sharingModality.ShareableResources)
{
try
{
cbSharedResources.Items.Add(s.Name);
}
catch { }
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}, DispatcherPriority.Normal);
});
The 2nd part of this is to act when we change the selected item in that combo box of applications and other screens.
try
{
_sharingModality = _conversation.Modalities[ModalityTypes.ApplicationSharing] as ApplicationSharingModality;
foreach (SharingResource s in _sharingModality.ShareableResources)
{
try
{
if (s.Name == cbSharedResources.SelectedItem.ToString())
{
ShareSelectedResource(new SharingResource_Wrapper(s));
}
else
{
Console.WriteLine(s.Name);
}
}
catch { }
}
}
catch { }
As you can see there are some functions needed to make this happen.
private void ShareSelectedResource(SharingResource_Wrapper selectedResource)
{
SharingResourceType selectedResourceType = SharingResourceType.Invalid;
SharingResource sharingResource = null;
foreach (SharingResource s in _sharingModality.ShareableResources)
{
if (s.Id == selectedResource.ResourceId)
{
//Get the type of resource selected by the user
selectedResourceType = s.Type;
sharingResource = s;
break;
}
}
CanShareDetail sharingDetail;
if (!_sharingModality.CanShare(selectedResourceType, out sharingDetail))
{
switch (sharingDetail)
{
case CanShareDetail.DisabledByOrganizerPolicy:
MessageBox.Show("The conversation organizer has disallowed sharing");
break;
case CanShareDetail.DisabledByPolicy:
MessageBox.Show("Sharing resources is not allowed ");
break;
case CanShareDetail.DisabledByRole:
MessageBox.Show("Conference attendees cannot share resources");
break;
}
return;
}
if (selectedResourceType == SharingResourceType.Desktop)
{
_sharingModality.BeginShareDesktop((ar) =>
{
_sharingModality.EndShareDesktop(ar);
}
, null);
}
else if (selectedResourceType == SharingResourceType.Monitor)
{
_sharingModality.BeginShareResources(sharingResource, (ar) =>
{
_sharingModality.EndShareResources(ar);
}, null);
}
else
{
_sharingModality.BeginShareResources(sharingResource, (ar) =>
{
try
{
_sharingModality.EndShareResources(ar);
}
catch (OperationException oe) { throw oe; }
catch (LyncClientException lce) { throw lce; }
}
, null);
}
}
private void ShareMonitorCallback(System.IAsyncResult ar)
{
try
{
ApplicationSharingModality sharingModality = (ApplicationSharingModality)ar.AsyncState;
}
catch (InvalidCastException) { }
catch (LyncClientException) { }
}
private void ShareResourcesCallback(System.IAsyncResult ar)
{
try
{
((ApplicationSharingModality)ar.AsyncState).EndShareResources(ar);
}
catch (OperationException) { }
catch (LyncClientException) { }
catch (InvalidCastException) { };
}
private void ShareDesktopCallback(System.IAsyncResult ar)
{
try
{
ApplicationSharingModality sharingModality = (ApplicationSharingModality)ar.AsyncState;
sharingModality.EndShareDesktop(ar);
}
catch (LyncClientException) { }
catch (InvalidCastException) { };
}
The last 2 parts are the sharing of the primary desktop, and the stopping of all app or monitor sharing.
try
{
_sharingModality = _conversation.Modalities[ModalityTypes.ApplicationSharing] as ApplicationSharingModality;
foreach (SharingResource s in _sharingModality.ShareableResources)
{
try
{
if (s.Name == "Primary Monitor")
{
ShareSelectedResource(new SharingResource_Wrapper(s));
}
else
{
Console.WriteLine(s.Name);
}
}
catch { }
}
}
catch { }
try
{
if (_sharingModality != null && _sharingModality.CanInvoke(ModalityAction.Disconnect))
{
_sharingModality.BeginDisconnect(ModalityDisconnectReason.None, (ar) =>
{
_sharingModality.EndDisconnect(ar);
}, null);
}
}
catch { }
This concludes our series on building the Ultimate Lync Presentation Tool Helper. Check back for a download link for the running exe you can use in your environment.
Doug Routledge, C# Lync, SQL, Exchange, UC Developer
