IWMPNetwork::get_bufferingProgress method (wmp.h)

Article
4/26/2023

[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 It has been superseded by MediaPlayer.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_bufferingProgress method retrieves the percentage of buffering completed.

Syntax

HRESULT get_bufferingProgress(
  [out] long *plBufferingProgress
);

Parameters

[out] plBufferingProgress

Pointer to a long containing the buffering progress.

Return value

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.

Remarks

Each time playback is stopped and restarted, the value retrieved from this method is zero. It is not reset if playback is paused.

Buffering only applies to streaming content. This method retrieves valid information only during run time when the URL for playback is set using the IWMPCore::put_URL method.

Use the IWMPEvents::Buffering event to determine when buffering starts or stops.

Requirements

Requirement	Value
Minimum supported client	Windows Media Player 9 Series or later.
Target Platform	Windows
Header	wmp.h
DLL	Wmp.dll

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