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IWMDMEnumDevice::Skip

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The Skip method skips over a specified number of devices in the enumeration sequence.

Syntax

HRESULT Skip(
  ULONG  celt,
  ULONG*  pceltFetched
);

Parameters

celt

[in]  Number of devices (interfaces) to skip.

pceltFetched

[out]  Number of devices actually skipped.

Return Values

The method returns an HRESULT. All the interface methods in Windows Media Device Manager and service provider can return any of the following classes of error codes:

  • Standard COM error codes
  • Windows error codes converted to HRESULT values
  • Windows Media Device Manager error codes

For a complete list of possible error codes, see Error Codes.

Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK The method succeeded.
S_FALSE The number of elements specified was not skipped.
E_INVALIDARG A parameter is invalid or is a NULL pointer.
E_FAIL An unspecified error occurred.

Remarks

If the number of elements to be skipped that is specified in celt is greater than the actual number of device interfaces remaining in the enumeration sequence, the return value from Skip is S_FALSE. At this point, pceltFetched must be queried to determine the number of interfaces skipped. If you skip to the end of the device array, a subsequent call to Next also returns S_FALSE. For more information about the standard enumerator Skip method, see the Microsoft COM documentation, available at the Microsoft Web site.

Requirements

Header: Defined in wmdm.idl.

Library: mssachlp.lib

See Also