MediaQueryEngine_t::OemExtensionUpnpQuery (Windows CE 5.0)

项目
09/14/2012

The OemExtensionUpnpQuery method creates a new MediaQuery_t object for the specified container id, search string and sort criteria.

You should use this method only if the generic query function does not enable you to make a specific UPnP query.

Syntax

MediaQuery_t OemExtensionUpnpQuery (  const WCHAR* pContainerIdStr,  const WCHAR* pSearchString,  const WCHAR* pSortString,  int BatchSize);

Parameters

pContainerIdStr
This is the container number for the query. The container number specifies the portion of media collection to search for. For example, container id 1 is for AllMusic, Container id 2 is AllVideo. For complete list see How to Build a Network Device Compatible with WMC.
pSearchString
You can filter the data based on file extension or property of media item data. For more information see How to Build a Network Device Compatible with WMC.
pSortString
You can sort the result based on any property of media item data. see How to Build a Network Device Compatible with WMC.
BatchSize
The number of media items in one batch.

Return Value

This method returns an MediaQuery_t object.

Remarks

Call IsValid on the returned media query to make sure the requested query was valid. If the returned MediaQuery_t object is not valid, call GetLastError to find out reason for the failure.

All strings must be less than s_MAX_INPUTSTRING (256 chars)

Requirements

OS Versions: Windows CE 5.0 Networked Media Device Feature Pack.
Header: MediaQueryEngine.hpp.
Link Library: MQELib.lib.

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