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Sets the properties of the matchmaking. This should only be set by a client acting as a matchmaking service.

Syntax

Parameters

handle   _In_
Type: XblMultiplayerSessionHandle
Handle to the multiplayer session. matchmakingTargetSessionConstantsJson   _In_
Type: char*
A JSON string representing the target session constants.

Return value

Type: HRESULT HRESULT return code for this API operation.

Requirements

Header: multiplayer_c.h Library: Microsoft.Xbox.Services.142.C.lib or Microsoft.Xbox.Services.143.C.lib

See also

multiplayer_c
Last modified on October 29, 2026