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IWMPControls::get_isAvailable
The get_isAvailable method indicates whether a specified type of information is available or a specified action can be performed.
Syntax
Parameters
bstrItem
[in] BSTR containing one of the following values.
| Value | Description |
| currentItem | Determines whether the user can set the IWMPControls::put_currentItem method. |
| currentMarker | Determines whether the user can seek to a specific marker. |
| currentPosition | Determines whether the user can seek to a specific position in the file. Some files do not support seeking. |
| fastForward | Determines whether the file supports fast forwarding and whether that functionality can be invoked. Many file types (or live streams) do not support fastForward. |
| fastReverse | Determines whether the file supports fastReverse and whether that functionality can be invoked. Many file types (or live streams) do not support fastReverse. |
| next | Determines whether the user can seek to the next entry in a playlist. |
| pause | Determines whether the IWMPControls::pause method is available. |
| play | Determines whether the IWMPControls::play method is available. |
| previous | Determines whether the user can seek to the previous entry in a playlist. |
| step | Determines whether the IWMPControls2::step method is available during playback. |
| stop | Determines whether the IWMPControls::stop method is available. |
pIsAvailable
[out] Pointer to a VARIANT_BOOL indicating whether a specified type of information is available or a specified action can be performed.
Return Values
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
| S_OK | The method succeeded. |
Requirements
Version: Windows Media Player 9 Series or later.
Header: Include wmp.h.
Library: Use wmp.dll.
See Also
- IWMPControls Interface
- IWMPControls::pause
- IWMPControls::play
- IWMPControls::put_currentItem
- IWMPControls::stop
- IWMPControls2::step
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