WndProperty property; property.SetDataField("property_data");In this example, a WndProperty object is created and the SetDataField function is called to set the data field to “property_data”. This function can be used to store any type of data within the WndProperty object. This function belongs to the MFC (Microsoft Foundation Class) library which is used for developing Windows-based applications. It provides a set of classes that simplify the creation of graphical user interfaces (GUI) for Windows.