System.IOleInPlaceUIWindow

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C++

IOleInPlaceUIWindow : public IOleWindow
typedef interface IOleInPlaceUIWindow IOleInPlaceUIWindow;

Properties

Type	Visibility	Source	Unit	Parent
class	public	oleidl.h	System	System

Description

Is a special base interface.

System.IOleInPlaceUIWindow inherits from System.IUnknown. All content below this line refers to System.IUnknown.

Is a special base interface.

IUnknown is a base interface with features that are important to C++ programmers and also programmers who utilize COM objects.

Note: In Delphi code, IUnknown is simply another name for IInterface. Descending from IUnknown instead of IInterface informs the Delphi compiler that the interface must be compatible with COM objects. Cross-platform applications can use interfaces descended from IUnknown, but must not use them to access COM objects, which are only available under Windows.

See Also

• IInterface

• DelphiInterface