IMAPIFormAdviseSink : IUnknown
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Enables form servers to receive notifications from form viewers.
Header file: |
Mapiform.h |
Exposed by: |
Form advise sink objects |
Implemented by: |
Form servers |
Called by: |
Form viewers |
Interface identifier: |
IID_IMAPIFormAdviseSink |
Pointer type: |
LPMAPIFORMADVISESINK |
Vtable Order
Indicates that a change has occurred in the status of the form viewer. |
|
Indicates whether the form can handle the message class of the next message to display. |
Remarks
Form servers use a form advise sink object to implement IMAPIFormAdviseSink instead of including it with their form object. Therefore, form viewers should expect a failed call to a form's IUnknown::QueryInterface method to obtain a pointer to this interface.
Form servers call a viewer's IMAPIViewContext::SetAdviseSink method to register for notifications. A pointer to their IMAPIFormAdviseSink implementation is included as a parameter.