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Applications use the methods of the IDDVideoPortContainer interface to create and manipulate DirectDrawVideoPort objects. You retrieve a pointer to this interface by calling the IUnknown::QueryInterface method of a DirectDraw object, specifying the IID_IDDVideoPortContainer reference identifier.
The methods of the IDDVideoPortContainer interface can be organized into the following groups:
| Creating objects | CreateVideoPort |
| Video ports | EnumVideoPorts |
| QueryVideoPortStatus | |
| Connections | GetVideoPortConnectInfo |
The IDDVideoPortContainer interface, like all COM interfaces, inherits the IUnknown interface methods.
The IUnknown interface supports the following three methods:
| IUnknown | AddRef |
| QueryInterface | |
| Release |
You can use the LPDDVIDEOPORTCONTAINER data type to declare a variable that contains a pointer to an IDDVideoPortContainer interface.
The Dvp.h header file declares the LPDDVIDEOPORTCONTAINER with the following code.
typedef struct IDDVideoPortContainer FAR *LPDDVIDEOPORTCONTAINER;
Requirements
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Dvp.h.
Link Library: Ddraw.lib.
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