Network.lostPackets

Article
06/20/2023

[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 It has been superseded by MediaPlayer.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 lostPackets property retrieves the number of packets lost.

Syntax

player.network.lostPackets

Possible Values

This property is a read-only Number (long).

Remarks

This property is only valid for streaming media, and will equal zero when using the HTTP protocol, which is lossless.

Packets may be lost for a number of reasons, such as the type and quality of the network connection.

Each time playback is stopped and restarted, this property is set to zero. It is not reset if playback is paused and restarted. This property returns valid information only during run time, and only if the Player.URL property is set.

Examples

The following JScript example uses Network.lostPackets to display the total number of packets lost during playback when the user clicks a button. The information is displayed in an HTML DIV created with ID = "LP". The Player object was created with ID = "Player".

<!-- Create an HTML BUTTON element. -->
<INPUT TYPE = "BUTTON" ID = "lostpkts" NAME = "lostpkts"
       VALUE = "Count lost packets" 
       onClick = "LP.innerHTML = 'Packets lost: ' + Player.network.lostPackets;">

Requirements

Requirement	Value
Version	Windows Media Player version 7.0 or later.
DLL	Wmp.dll

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