IMAPISupport::SpoolerNotify

Last modified: July 23, 2011

Applies to: Outlook

Notifies the MAPI spooler of a change in status or a request for service.

HRESULT SpoolerNotify(
ULONG ulFlags,
LPVOID lpvData
);

ulFlags

[in] A bitmask of flags that indicates the type of notification. Transport providers can set all of the flags except for NOTIFY_NEWMAIL_RECEIVED; only NOTIFY_NEWMAIL_RECEIVED and NOTIFY_READTOSEND are valid for message store providers. The following flags are valid for the ulFlags parameter:

NOTIFY_CONFIG_CHANGE

Registers a request to change the transport provider's configuration.

NOTIFY_CRITICAL_ERROR

An unrecoverable error has occurred to the transport provider. Because both NOTIFY_SENTDEFERRED and NOTIFY_CRITICAL_ERROR use the lpvData parameter for transport provider calls, these flags are mutually exclusive.

NOTIFY_CRITSEC

Requests a critical section for the transport provider. The lpvData parameter is undefined and should be NULL.

NOTIFY_NEWMAIL

The MAPI spooler should download any newly received messages at the next available time. The lpvData parameter is undefined and should be set to NULL.

NOTIFY_NEWMAIL_RECEIVED

A new message has been received in the message store. The lpvData parameter points to a NEWMAIL_NOTIFICATION structure that describes the message. This flag is used for message store providers that are tightly coupled with transport providers and is ignored if the store provider is logged on with the MAPI_NO_MAIL flag set.

NOTIFY_NONCRIT

Releases a critical section that was obtained with a previous call to SpoolerNotify with ulFlags set to NOTIFY_CRITSEC. The lpvData parameter is undefined and should be set to NULL.

NOTIFY_READYTOSEND

The transport or message store provider is ready to send messages. The lpvData parameter is undefined and should be set to NULL.

NOTIFY_SENTDEFERRED

A previously deferred message should now be sent, and the transport provider should be notified when the message is ready to be delivered by using a call to the IXPLogon::SubmitMessage method. The entry identifier of the deferred message is contained in an SBinary structure pointed to by lpvData. Because both NOTIFY_SENTDEFERRED and NOTIFY_CRITICAL_ERROR use the lpvData parameter, these flags are mutually exclusive.

lpvData

[in] A pointer to associated data applicable to a notification. The lpvData parameter points to valid data only when the following flags are set (lpvData is NULL when ulFlags is set to the other notification types):

ulFlags setting

lpvData value

NOTIFY_CRITICAL_ERROR

Information about the error.

NOTIFY_NEWMAIL_RECEIVED

A NEWMAIL_NOTIFICATION structure that contains information about the newly delivered message.

NOTIFY_SENTDEFERRED

An SBinary structure that contains the entry identifier of deferred message.

S_OK

The notification was successful.

The IMAPISupport::SpoolerNotify method is implemented for message store and transport provider support objects. These providers call SpoolerNotify to notify the MAPI spooler of a change in status or a request for service. SpoolerNotify is called primarily by transport providers and may be called at any time during the session.

If you have changed your transport provider configuration, call SpoolerNotify and set ulFlags to NOTIFY_CONFIG_CHANGED. SpoolerNotify responds by calling the IXPLogon::AddressTypes method to query for a change in supported address types.

If you need a critical section to ensure uninterrupted processing, call SpoolerNotify with ulFlags set to NOTIFY_CRITSEC. Setting this flag informs the MAPI spooler that it should not call the IXPLogon::Idle and IXPLogon::Poll methods. While you have a critical section open, return MAPI_E_BUSY whenever the IMAPIStatus::ValidateState method is called. When you are finished with the critical section, make another call to SpoolerNotify with ulFlags set to NOTIFY_NONCRIT.

For example, if your remote transport provider is in the process of uploading messages, you might need to allow a user to enter a telephone number to establish the remote connection. Before you loop through the dialog box procedure, you should declare a critical section. When the user closes the dialog box, terminating the dialog box procedure, you should release the critical section.

When you set ulFlags to NOTIFY_CRITICAL_ERROR, the MAPI spooler makes no further calls to the provider except to release it. If you call SpoolerNotify with NOTIFY_CRITICAL_ERROR set from the IXPLogon::StartMessage or IXPLogon::SubmitMessage methods, return with an appropriate error value from the StartMessage or SubmitMessage call immediately after the SpoolerNotify call.

If your transport provider recovered from a condition that previously caused it to fail, call SpoolerNotify with ulFlags set to NOTIFY_READYTOSEND. This flag indicates that the provider is again ready to handle messages.

Call SpoolerNotify, passing the NOTIFY_READYTOSEND flag in ulFlags, before you make your first call to IMAPISupport::PrepareSubmit in IMessage::SubmitMessage. This call to SpoolerNotify needs to be made only once per session.

If your message store provider is tightly coupled with a transport provider and you call SpoolerNotify with ulFlags set to NOTIFY_NEWMAIL_RECEIVED, the MAPI spooler opens the new message and begins processing the new message hook function. When processing is complete, the MAPI spooler calls the IMsgStore::NotifyNewMail method to inform you of your own new message.

For more information about calling SpoolerNotify, see any of the following topics:

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