internal extern static int PeerGetNextItem(SafeCollabEnum hPeerEnum,
ref UInt32 pCount,
out SafeCollabData pppvItems);
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;
}
internal extern static int PeerCollabEnumContacts(out SafeCollabEnum phPeerEnum);
internal extern static int PeerGetItemCount(SafeCollabEnum hPeerEnum, ref UInt32 pCount);
internal extern static int PeerCollabEnumPeopleNearMe(out SafeCollabEnum phPeerEnum);
internal extern static int PeerCollabEnumEndpoints(ref PEER_CONTACT pcContact,
out SafeCollabEnum phPeerEnum);
internal extern static int PeerGetNextItem(SafeCollabEnum hPeerEnum,
ref UInt32 pCount,
out SafeCollabData pppvItems);
internal extern static int PeerCollabEnumApplications(IntPtr pcEndpoint,
IntPtr pObjectId,
out SafeCollabEnum phPeerEnum);
internal extern static int PeerGetItemCount(SafeCollabEnum hPeerEnum, ref UInt32 pCount);
internal extern static int PeerCollabEnumContacts(out SafeCollabEnum phPeerEnum);
internal extern static int PeerCollabEnumEndpoints(ref PEER_CONTACT pcContact,
out SafeCollabEnum phPeerEnum);
internal extern static int PeerCollabEnumPeopleNearMe(out SafeCollabEnum phPeerEnum);
internal extern static int PeerCollabEnumApplications( IntPtr pcEndpoint,
IntPtr pObjectId,
out SafeCollabEnum phPeerEnum);
