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Gets the number of XblMultiplayerActivityDetails objects returned.

Syntax

Parameters

async   _In_
Type: XAsyncBlock*
The XAsyncBlock for this operation. activityCount   _Out_
Type: size_t*
The number of activity objects returned.

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