Delete The Delete method permanently deletes this storage. This is a pass-through method; Windows Media Device Manager just forwards the call to the service provider after validating the parameters. Enable The Enable method enables or disables logging. Logging is enabled by default. End The End method indicates that a read or write operation is finished, whether successful or not, and it returns a completion code.
End The End method indicates that an operation is finished. EndSession The EndSession method indicates the ending of a transfer session. EndSession The EndSession method ends a device session. EnumDevices The EnumDevices method enumerates the installed physical or software devices that are currently attached and are known by the service provider. EnumDevices2 The EnumDevices2 method retrieves an enumeration interface that is used to enumerate portable devices connected to the computer.
Top-level storage for a device is the root directory of the storage medium. ExamineData The ExamineData method determines rights and responsibility for the content by examining data that Windows Media Device Manager passes to this method. FindStorage The FindStorage method finds a storage with the given persistent unique identifier. FindStorage The FindStorage method finds a storage by its persistent unique identifier.
Unlike other methods, this method can search recursively from the root storage. FindStorage The FindStorage method retrieves a storage in the current root storage, based on its persistent unique identifier. GetAttributes The GetAttributes method retrieves the attributes of this storage object. GetAttributes The GetAttributes method retrieves the attributes of the storage. GetAttributes2 The GetAttributes2 method gets attributes of files or storages. GetAttributes2 The GetAttributes2 method retrieves extended attributes of the storage.
GetCapabilities The GetCapabilities method retrieves the capabilities mask for the device with which this control interface is associated. The capabilities describe the methods of the device control that are supported by the media device. GetCapabilities The GetCapabilities method retrieves the capabilities of the storage medium that an instance of this interface is associated with.
GetCapabilities The GetCapabilities method retrieves the device capabilities to determine what operations the device can perform. GetCapabilities The GetCapabilities method retrieves the capabilities of the root storage medium. GetDataDemands The GetDataDemands method reports which data the secure content provider needs to determine the rights and responsibility for a specified piece of content. GetDate The GetDate method retrieves the date on which the storage object file or folder was most recently modified.
GetDate The GetDate method retrieves the date when the storage was last modified. GetDevice The GetDevice method retrieves a pointer to the device on which the storage medium with which this interface is associated is mounted. GetDeviceCount The GetDeviceCount method returns the number of installed physical or software devices that are currently attached and are known by the service provider. GetDeviceCount The GetDeviceCount method retrieves the number of portable devices that are currently connected to the computer.
GetDeviceIcon The GetDeviceIcon method retrieves a handle to the icon that the device manufacturer wants to display when the device is connected. GetFormatCapability The GetFormatCapability method retrieves information from a device about the values or ranges of values supported by the device for each aspect of a particular object format.
The capabilities are expressed as supported properties and their allowed values. The format information includes codecs, file formats, and digital rights management schemes. GetFormatSupport The GetFormatSupport method retrieves all the formats supported by the device, including codecs and file formats. The object must be a music file on the media device. The object must be an audio file on the media device. The file must be an audio file on the media device. GetManufacturer The GetManufacturer method retrieves the name of the manufacturer of the device.
GetMetadata The GetMetadata method retrieves metadata from the service provider. GetMetadata The GetMetadata method retrieves the metadata associated with the storage.
GetName The GetName method retrieves the name of the device. GetName The GetName method retrieves the display name of the storage object. GetName The GetName method retrieves the human-readable name of the media device.
GetName The GetName method retrieves the display name of the storage. This pageprovides links to the web sites for several original equipment manufacturers OEMs ,where you can download the appropriate USB driver for your device. Instead read Using Hardware Devices. Once you've downloaded your USB driver, follow the instructions below to install or upgrade thedriver, based on your version of Windows and whether you're installing for the first timeor upgrading an existing driver.
Then see Using Hardware Devices forother important information about using an Android device fordevelopment. Making any other changes to the driver files may break the installationprocess. Touch screen: On your computer, swipe in from the right edge of the screen and tap Search. Using a mouse: Point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.
If you don't see a link for the manufacturer of your device here, go to the support section of the manufacturer's website and search for USB driver downloads for your device. It also allows for a number of additional functions aimed at managing media. With Windows Mobile Device Center, you can synchronize email, manage memory of your PDA directly from the desktop, transfer all kinds of files and sync your digital photos and music files.
An immediate child of the flash device is the root storage object, which contains a folder, which itself contains an image and a song. An application enumerates the list of attached devices by calling an enumeration method exposed by the root IWMDeviceManager interface. This interface exposes methods to retrieve the device name, format capabilities, serial number, and so on, as well as a method that enumerates storages on the device.
In Windows Media Device Manager, a storage is any kind of object on the device, whether or not it is an actual blob of data. For example: audio files, text files, folders, playlists stored as files, and playlists stored as metadata are all considered storages, even though folders and metadata items probably do not represent a physical file. The type or format of a storage can be retrieved by calling GetAttributes or GetMetadata , requesting the format of the storage.
Storages on a device are stored hierarchically, and all devices have a root storage. Note that each storage in the diagram has attributes and metadata associated with it not all values are shown.
Attributes are simple, Boolean information often describing management or navigational information such as "has folders" or "can delete" , whereas metadata can be string values, numbers, or complex information such as rendering capabilities. Metadata values are retrieved by a unique name; the SDK defines a number of metadata values that devices should support, but devices can define their own metadata constants. However, if a device or service provider defines a new metadata constant, applications won't be able to request or set this value unless the application developers were aware of this new constant.
For more information, see Getting and Setting Metadata and Attributes. The service provider acts as a middleman between the application and the device. The service provider is invisible to the application developer, so an application developer does not need to know anything about developing a service provider.
However, it is the service provider that does the work of communicating with a device. Communication with the desktop application is mediated by Windows Media Device Manager; communication with the device is under the control of the service provider.
A service provider receives requests from the application to enumerate device content, requests for device capabilities, requests to read or write data, and so on. Support for content editing applications. This SDK enables applications to seek to points within a file by presentation time and by video frame. In addition, files created by using the Windows Media Format SDK can maintain timestamps in formats used in film and television production.
Support for reading and editing metadata in MP3 files. Support for Digital Rights Management protection. This SDK provides methods for reading and writing ASF files and network streams that are protected by Digital Rights Management to prevent unauthorized playback or copying of the content.
Section Description About the Windows Media Format SDK Provides overview and background information that you should be familiar with before attempting to create applications. Programming Guide Provides detailed instructions for performing various tasks, such as reading, writing and indexing files, protecting files with Digital Rights Management, streaming ASF data over a network, and so on.
Programming Reference Provides reference information for the interfaces, methods, functions, structures, enumeration types, and constants related to Windows Media Format. All communication between an application and a portable device must go through Windows Media Device Manager, which acts as a broker between the application, the Microsoft digital rights management system, and the service provider.
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