# WMSetMPParameterCallback

## Definition

  `#include <nitro/wm.h>`

      typedef struct WMSetMPParameterCallback
      {
          u16         apiid;
          u16       errcode;
          u32       mask
          WMMPParam oldParam;
      } WMSetMPParameterCallback;

## Elements

`apiid` | ID of the API that acts as the source for the callback generation. It is equivalent to the `WMApiid` enumerated type. Here, it is fixed as `WM_APIID_SET_MP_PARAMETER`.
`errcode` | Result of the asynchronous process. It is equivalent to the `WMErrCode` enumerated type.
`mask` | Mask value set during current execution.
`oldParam` | Parameters used for MP communications before the current setting.

## Description

This structure is passed to the callback function for the `WM_SetMPParameter` function.

## Revision History

2005/11/24 Initial version.

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