IWMPMedia::get_duration method (wmp.h)
[The feature associated with this page, Windows Media Player SDK, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of Windows Media Player SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The get_duration method retrieves the duration in seconds of the current media item..
Syntax
HRESULT get_duration(
[out] double *pDuration
);
Parameters
[out] pDuration
Pointer to a double containing the duration.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
Remarks
If this method is used with a media item other than the one specified in IWMPCore::get_currentMedia, it may not contain a valid value.
To retrieve the duration for files that are not in the user's library, you must wait for Windows Media Player to open the file; that is, the current OpenState must equal MediaOpen. You can verify this by handling the IWMPEvents::OpenStateChange event or by periodically checking the value of IWMPCore::get_openState.
For playlists, the duration of each media item can be retrieved when the individual media item is opened, rather than the when the playlist is opened.
Before calling this method, you must have read access to the library. For more information, see Library Access.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Media Player 9 Series or later. |
| Target Platform | Windows |
| Header | wmp.h |
| DLL | Wmp.dll |