// </Snippet3>
//------------------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------------------
// <Snippet4>
// Registering Notepad.exe as a collab application with a fixed GUID.
// Note: If you're using the application to send invitations,
// the same application with the same GUID must be registered on the remote peer machine.
private static PeerApplication RegisterCollabApp()
{
PeerApplication application = null;
string pathToApp = "%SystemRoot%\\notepad.exe";
Guid appGuid = new Guid(0xAAAAAAAA, 0xFADE, 0xDEAF, 0xBE, 0xEF, 0xFF, 0xEE, 0xDD, 0xCC, 0xBB, 0xAE);
application = new PeerApplication();
application.Id = appGuid;
application.Path = pathToApp;
application.Description = "Peer Collaboration Sample -- notepad.exe";
application.PeerScope = PeerScope.All;
application.CommandLineArgs = "n";
application.Data = ASCIIEncoding.ASCII.GetBytes("Test");
Console.WriteLine("Attempting to register the application \"notepad.exe\"...");
try
{
PeerApplicationCollection pac = PeerCollaboration.GetLocalRegisteredApplications(PeerApplicationRegistrationType.AllUsers);
if (pac.Contains(application))
{
Console.WriteLine("The application is already registered on the peer.");
}
else
{
PeerCollaboration.RegisterApplication(application, PeerApplicationRegistrationType.AllUsers);
Console.WriteLine("Application registration succeeded!");
}
}
catch (ArgumentException argEx)
{
Console.WriteLine("The application was previously registered with the Peer Collaboration Infrastructure: {0}.", argEx.Message);
}
catch (PeerToPeerException p2pEx)
{
Console.WriteLine("The application failed to register with the Peer Collaboration Infrastructure: {0}", p2pEx.Message);
}
catch (Exception ex)
{
Console.WriteLine("An unexpected exception occurred when trying to register the application: {0}.", ex.Message);
}
return(application);
}
public static PeerApplicationCollection GetLocalRegisteredApplications(PeerApplicationRegistrationType type)
{
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Entering GetLocalRegisteredApplications.");
PeerCollaborationPermission.UnrestrictedPeerCollaborationPermission.Demand();
if ((type < PeerApplicationRegistrationType.CurrentUser) || (type > PeerApplicationRegistrationType.AllUsers)){
throw new ArgumentOutOfRangeException("type");
}
CollaborationHelperFunctions.Initialize();
PeerApplicationCollection peerAppColl = new PeerApplicationCollection();
SafeCollabEnum handlePeerEnum = new SafeCollabEnum();
UInt32 appCount = 0;
int errorCode = 0;
//
// Enumerate and get all the registered applications from native
//
try{
errorCode = UnsafeCollabNativeMethods.PeerCollabEnumApplications(IntPtr.Zero, IntPtr.Zero, out handlePeerEnum);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabEnumApplications returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetLocalAppsFailed), errorCode));
}
errorCode = UnsafeCollabNativeMethods.PeerGetItemCount(handlePeerEnum, ref appCount);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerGetItemCount returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetLocalAppsFailed), errorCode));
}
if (appCount == 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "No local registered PeerApplications found.");
return peerAppColl;
}
unsafe{
SafeCollabData appArray = null;
try{
errorCode = UnsafeCollabNativeMethods.PeerGetNextItem(handlePeerEnum, ref appCount, out appArray);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerGetNextItem returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetLocalAppsFailed), errorCode));
}
//
// Marshal each application from the array
//
IntPtr pPEER_APLICATION = appArray.DangerousGetHandle();
IntPtr* pApps = (IntPtr*)pPEER_APLICATION;
for (ulong i = 0; i < appCount; i++){
PEER_APPLICATION* pPeerApp = (PEER_APPLICATION*)pApps[i];
string description = Marshal.PtrToStringUni(pPeerApp->pwzDescription);
byte[] data = null;
if (pPeerApp->data.cbData != 0){
data = new byte[pPeerApp->data.cbData];
Marshal.Copy(pPeerApp->data.pbData, data, 0, (int)pPeerApp->data.cbData);
}
PeerApplication peerApp = new PeerApplication( CollaborationHelperFunctions.ConvertGUIDToGuid(pPeerApp->guid),
description, data, null, null, PeerScope.None);
peerAppColl.Add(peerApp);
}
}
finally{
appArray.Dispose();
}
}
}
finally{
handlePeerEnum.Dispose();
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Got all local registered Applications. Start filtering");
PeerApplicationCollection peerAppCollFiltered = new PeerApplicationCollection();
//
// Filter the apps according to the Registration type the user wants
//
foreach (PeerApplication peerApplication in peerAppColl)
{
GUID guid = CollaborationHelperFunctions.ConvertGuidToGUID(peerApplication.Id);
SafeCollabData safeAppRegInfo = new SafeCollabData();
try{
errorCode = UnsafeCollabNativeMethods.PeerCollabGetApplicationRegistrationInfo(ref guid,
type,
out safeAppRegInfo);
if (errorCode != 0)
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabGetApplicationRegistrationInfo returned with errorcode {0}", errorCode);
if (!safeAppRegInfo.IsInvalid){
PEER_APPLICATION_REGISTRATION_INFO pari = (PEER_APPLICATION_REGISTRATION_INFO)
Marshal.PtrToStructure(safeAppRegInfo.DangerousGetHandle(),
typeof(PEER_APPLICATION_REGISTRATION_INFO));
peerApplication.Path = pari.pwzApplicationToLaunch;
peerApplication.CommandLineArgs = pari.pwzApplicationArguments;
peerApplication.PeerScope = (PeerScope)pari.dwPublicationScope;
peerAppCollFiltered.Add(peerApplication);
}
}
finally{
safeAppRegInfo.Dispose();
}
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Filtering successful. Returning collection with {0} applications", peerAppCollFiltered.Count);
return peerAppCollFiltered;
}
public static void UnregisterApplication(PeerApplication application, PeerApplicationRegistrationType type)
{
PeerCollaborationPermission.UnrestrictedPeerCollaborationPermission.Demand();
if (application == null){
throw new ArgumentNullException("application");
}
if (application.Id.Equals(Guid.Empty)){
throw new ArgumentException(SR.GetString(SR.Collab_EmptyGuidError));
}
if ((type < PeerApplicationRegistrationType.CurrentUser) || (type > PeerApplicationRegistrationType.AllUsers)){
throw new ArgumentOutOfRangeException("type");
}
CollaborationHelperFunctions.Initialize();
//
// Convert PeerApplication.Guid into native GUID struct
//
GUID guid = CollaborationHelperFunctions.ConvertGuidToGUID(application.Id);
if (Logging.P2PTraceSource.Switch.ShouldTrace(TraceEventType.Information))
{
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "UnregisterApplication() is called with the following Info");
application.TracePeerApplication();
}
int errorCode = UnsafeCollabNativeMethods.PeerCollabUnregisterApplication(ref guid, type);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabUnregisterApplication returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_AppUnregFailed), errorCode));
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "UnregisterApplication successful");
}
public static void RegisterApplication(PeerApplication application, PeerApplicationRegistrationType type)
{
PeerCollaborationPermission.UnrestrictedPeerCollaborationPermission.Demand();
if (application == null){
throw new ArgumentNullException("application");
}
if (application.Path == null){
throw new ArgumentException(SR.GetString(SR.Collab_AppRegNoPathError));
}
if ((type < PeerApplicationRegistrationType.CurrentUser) || (type > PeerApplicationRegistrationType.AllUsers)){
throw new ArgumentOutOfRangeException("type");
}
CollaborationHelperFunctions.Initialize();
int errorCode = 0;
//
// Convert PeerApplication.Guid into native GUID struct
//
PEER_APPLICATION_REGISTRATION_INFO appRegInfo = new PEER_APPLICATION_REGISTRATION_INFO();
appRegInfo.application.guid = CollaborationHelperFunctions.ConvertGuidToGUID(application.Id);
appRegInfo.pwzApplicationArguments = application.CommandLineArgs;
appRegInfo.pwzApplicationToLaunch = application.Path;
appRegInfo.dwPublicationScope = (uint)application.PeerScope;
if (Logging.P2PTraceSource.Switch.ShouldTrace(TraceEventType.Information)){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "RegisterApplication() is called with the following Info");
application.TracePeerApplication();
}
unsafe{
SafeCollabMemory data = null;
appRegInfo.application.data.cbData = (application.Data!=null) ?
(UInt32)application.Data.Length : 0;
GCHandle descHandle = new GCHandle();
try{
//
// Marshal any data to send to native call
//
if ((application.Data!=null) && (application.Data.Length > 0))
{
data = new SafeCollabMemory(application.Data.Length);
appRegInfo.application.data.pbData = data.DangerousGetHandle();
Marshal.Copy(application.Data, 0, appRegInfo.application.data.pbData, application.Data.Length);
}
else
appRegInfo.application.data.pbData = IntPtr.Zero;
descHandle = GCHandle.Alloc(application.Description, GCHandleType.Pinned);
appRegInfo.application.pwzDescription = descHandle.AddrOfPinnedObject();
errorCode = UnsafeCollabNativeMethods.PeerCollabRegisterApplication(ref appRegInfo, type);
}
finally{
if (descHandle.IsAllocated) descHandle.Free();
if (data != null) data.Dispose();
}
}
if (errorCode == UnsafeCollabReturnCodes.PEER_E_ALREADY_EXISTS){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabRegisterApplication returned with errorcode {0}. Application already registered.", errorCode);
throw new ArgumentException(SR.GetString(SR.Collab_AppRegFailed) + " " + SR.GetString(SR.Collab_AppExists));
}
else if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabRegisterApplication returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_AppRegFailed), errorCode));
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "RegisterApplication successful");
}
//------------------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------------------
//List PeerNearMe objects that may be added as contacts.
private static void AddContact()
{
PeerNearMeCollection pnmc = null;
PeerContactCollection peerContacts = null;
bool peerNameFound = false;
PeerApplication application = null;
try
{
Console.WriteLine("Listing the existing contacts...");
peerContacts = PeerCollaboration.ContactManager.GetContacts();
}
catch (PeerToPeerException p2pEx)
{
Console.WriteLine("The Peer Collaboration Infrastructure is not responding to the contact enumeration request: {0}", p2pEx.Message);
}
catch (Exception ex)
{
Console.WriteLine("An unexpected error occurred while attempting to obtain the contact list: {0}", ex.Message);
}
DisplayContacts(peerContacts);
try
{
//Adds one of the PeerNearMe objects as a contact.
pnmc = GetPeersNearMe();
Console.WriteLine("Please enter the nickname of the peer you wish to add as a contact:");
string peerNameToAdd = Console.ReadLine();
application = RegisterCollabApp();
foreach (PeerNearMe pnm in pnmc)
{
PeerInvitationResponse res = null;
if (pnm.Nickname.Contains(peerNameToAdd))
{
peerNameFound = true;
if (!peerContacts.ToString().Contains(pnm.Nickname))
{
Console.WriteLine("Adding peer {0} to the contact list.", pnm.Nickname);
pnm.AddToContactManager();
}
else
{
Console.WriteLine("This peer already exists in your contact list.");
Console.WriteLine("Sending invitation using the Contact structure instead of the PeerNearMe.");
foreach (PeerContact pc in peerContacts)
{
if (pc.Nickname.Equals(pnm.Nickname))
{
res = pnm.Invite(application, "Peer Collaboration Sample", application.Data);
if (res.PeerInvitationResponseType == PeerInvitationResponseType.Accepted)
{
Console.WriteLine("Invitation to contact succeeded.");
}
else
{
Console.WriteLine("Invitation to contact {0}.", res.PeerInvitationResponseType);
}
}
}
}
}
}
if (!peerNameFound)
{
Console.WriteLine("No such peer exists near you. Cannot add to contacts.");
return;
}
peerContacts = PeerCollaboration.ContactManager.GetContacts();
Console.WriteLine("Listing the contacts again...");
DisplayContacts(peerContacts);
}
catch (Exception ex)
{
Console.WriteLine("Error adding a contact: {0}", ex.Message);
}
finally
{
application.Dispose();
}
return;
}
