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CComControlBase::m_spDataAdviseHolder

Provides a standard means to hold advisory connections between data objects and advise sinks.

CComPtr<IDataAdviseHolder> m_spDataAdviseHolder;

Remarks

注意

To use this data member within your control class, you must declare it as a data member in your control class. Your control class will not inherit this data member from the base class because it is declared within a union in the base class.

A data object is a control that can transfer data and that implements IDataObject, whose methods specify the format and transfer medium of the data.

The interface m_spDataAdviseHolder implements the IDataObject::DAdvise and IDataObject::DUnadvise methods to establish and delete advisory connections to the container. The control's container must implement an advise sink by supporting the IAdviseSink interface.

Requirements

Header: atlctl.h

See Also

Reference

CComControlBase Class

CComPtr Class

Other Resources

CComControlBase Members