CreateClusterNotifyPort function (clusapi.h)
Creates or modifies a notification port. For information on notification ports, see Receiving Cluster Events. The PCLUSAPI_CREATE_CLUSTER_NOTIFY_PORT type defines a pointer to this function.
Syntax
HCHANGE CreateClusterNotifyPort(
[in] HCHANGE hChange,
[in] HCLUSTER hCluster,
[in] DWORD dwFilter,
[in] DWORD_PTR dwNotifyKey
);
Parameters
[in] hChange
Handle to a notification port or INVALID_HANDLE_VALUE, indicating that a new handle should be created. If hChange is an existing handle, the events specified in dwFilter are added to the notification port.
[in] hCluster
Handle to the cluster to be associated with the notification port identified by hChange, or INVALID_HANDLE_VALUE, indicating that the notification port should not be associated with a cluster. If hChange is not set to INVALID_HANDLE_VALUE, hCluster cannot be set to INVALID_HANDLE_VALUE.
[in] dwFilter
Bitmask of flags enumerated from the CLUSTER_CHANGE enumeration that specifies the events that will cause notifications to be stored in the queue. One or more of the following flags can be set using the OR operator, or you can specify all of the flags by using the value CLUSTER_CHANGE_ALL.
CLUSTER_CHANGE_CLUSTER_PROPERTY (0x40000000)
The queue receives a notification when the cluster's properties change.
CLUSTER_CHANGE_CLUSTER_RECONNECT (0x00080000)
The queue receives a notification when the connection to the cluster identified by hCluster is reestablished after a brief disconnect. Some events generated immediately before or after this event may have been lost. You need to close all open connections and reconnect to receive accurate state information.
CLUSTER_CHANGE_CLUSTER_STATE (0x20000000)
The queue receives a notification when the cluster becomes unavailable, meaning that all attempts to communicate with the cluster fail.
CLUSTER_CHANGE_GROUP_ADDED (0x00004000)
The queue receives a notification when a new group is created in the cluster.
CLUSTER_CHANGE_GROUP_DELETED (0x00002000)
The queue receives a notification when an existing group is deleted.
CLUSTER_CHANGE_GROUP_PROPERTY (0x00008000)
The queue receives a notification when the properties of a group change or when a resource is added or removed from a group.
CLUSTER_CHANGE_GROUP_STATE (0x00001000)
The queue receives a notification when a group changes state. For a list of the possible group state values, see GetClusterGroupState.
CLUSTER_CHANGE_HANDLE_CLOSE (0x80000000)
The queue receives a notification when a handle associated with a cluster object is closed.
CLUSTER_CHANGE_NETINTERFACE_ADDED (0x04000000)
The queue receives a notification when a new network interface is added to a cluster node.
CLUSTER_CHANGE_NETINTERFACE_DELETED (0x02000000)
The queue receives a notification when a network interface is permanently removed from a cluster node.
CLUSTER_CHANGE_NETINTERFACE_PROPERTY (0x08000000)
The queue receives a notification when the properties of an existing network interface change.
CLUSTER_CHANGE_NETINTERFACE_STATE (0x01000000)
The queue receives a notification when a network interface changes state. For a list of the possible network interface state values, see GetClusterNetInterfaceState.
CLUSTER_CHANGE_NETWORK_ADDED (0x00400000)
The queue receives a notification when a new network is added to the cluster environment.
CLUSTER_CHANGE_NETWORK_DELETED (0x00200000)
The queue receives a notification when a network is permanently removed from the cluster environment.
CLUSTER_CHANGE_NETWORK_PROPERTY (0x00800000)
The queue receives a notification when the properties of an existing network change.
CLUSTER_CHANGE_NETWORK_STATE (0x00100000)
The queue receives a notification when a network changes state. For a list of the possible network state values, see GetClusterNetworkState.
CLUSTER_CHANGE_NODE_ADDED (0x00000004)
The queue receives a notification when a new node is added to the cluster. A node can be added only when the Cluster service is initially installed on the node.
CLUSTER_CHANGE_NODE_DELETED (0x00000002)
The queue receives a notification when a node is permanently removed from a cluster. A node can be permanently deleted from an existing cluster with a call to the EvictClusterNode function.
CLUSTER_CHANGE_NODE_PROPERTY (0x00000008)
The queue receives a notification when the node's properties change.
CLUSTER_CHANGE_NODE_STATE (0x00000001)
The queue receives a notification when a node changes state. For a list of possible node state values, see GetClusterNodeState.
CLUSTER_CHANGE_QUORUM_STATE (0x10000000)
This notification is reserved for future use.
CLUSTER_CHANGE_REGISTRY_ATTRIBUTES (0x00000020)
The queue receives a notification when a cluster database key's attributes are changed. The only currently defined cluster database key attribute is its security descriptor, which can be changed with ClusterRegSetKeySecurity.
CLUSTER_CHANGE_REGISTRY_NAME (0x00000010)
The queue receives a notification when the name of a cluster database key has changed.
CLUSTER_CHANGE_REGISTRY_SUBTREE (0x00000080)
Indicates that the other CLUSTER_CHANGE_REGISTRY events apply to the entire cluster database. If this flag is not included, the events apply only to the specified key.
CLUSTER_CHANGE_REGISTRY_VALUE (0x00000040)
The queue receives a notification when a value of the specified cluster database key is changed or deleted. Cluster database values can be changed with the ClusterRegSetValue function and deleted with the ClusterRegDeleteValue function.
CLUSTER_CHANGE_RESOURCE_ADDED (0x00000400)
The queue receives a notification when a new resource is created in the cluster.
CLUSTER_CHANGE_RESOURCE_DELETED (0x00000200)
The queue receives a notification when a resource is deleted.
CLUSTER_CHANGE_RESOURCE_PROPERTY (0x00000800)
The queue receives a notification when the properties, dependencies, or possible owner nodes of a resource change.
CLUSTER_CHANGE_RESOURCE_STATE (0x00000100)
The queue receives a notification when a resource changes state. For a list of the possible resource state values, see GetClusterResourceState.
CLUSTER_CHANGE_RESOURCE_TYPE_ADDED (0x00020000)
The queue receives a notification when a new resource type is created in the cluster.
CLUSTER_CHANGE_RESOURCE_TYPE_DELETED (0x00010000)
The queue receives a notification when an existing resource type is deleted.
CLUSTER_CHANGE_RESOURCE_TYPE_PROPERTY (0x00040000)
The queue receives a notification when the properties of a resource type change.
[in] dwNotifyKey
A user-specified value to be associated with retrieving notifications from the notification port. The dwNotifyKey is returned from GetClusterNotify when an event of one of the types specified in dwFilter occurs.
Return value
If the operation succeeds, the function returns a notification port handle.
If the operation fails, the function returns NULL. For more information about the error, call GetLastError.
Remarks
For more information on using the CreateClusterNotifyPort, GetClusterNotify, and RegisterClusterNotify, functions, see Receiving Cluster Events.
Examples
See the Notification Port Example.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | None supported |
| Minimum supported server | Windows Server 2008 Enterprise, Windows Server 2008 Datacenter |
| Target Platform | Windows |
| Header | clusapi.h |
| Library | ClusAPI.lib |
| DLL | ClusAPI.dll |
See also
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