通过

ISoftUSBConfigurations::Remove Method

  • 项目

The Remove method removes the specified object from a collection of SoftUSBConfiguration objects.

Syntax

HRESULT Remove(
  [in]  VARIANT Index
);

Parameters

  • Index [in]
    The index of the item to remove from the collection.

Return Value

Remove returns an HRESULT value. This method returns S_OK if the operation succeeds or E_UNEXPECTED if the collection was not been properly initialized.

Remarks

The following C++ code example how to remove an item from an ISoftUSBConfigurations collection.

HRESULT CTestDevice::RemoveFirstItemFromConfigList()
{
HRESULT hr = S_OK;
ISoftUSBConfigurations *piConfigList = NULL;
VARIANT                varIndex; ::InitVariant(&varIndex);

// Get the configuration list
hr = m_piDevice->get_Configurations(&piConfigList);
if(FAILED(hr))
 goto Exit;

// Remove the object from the collection
varIndex.vt = VT_I4;
varIndex.lVal = 1;

hr = piConfigList->Remove(varIndex);
 if(FAILED(hr))
 goto Exit;

Exit:
 if (NULL != piConfigList)
{
  piConfigList->Release();
 piConfigList = NULL;
}
 return hr;
}

Requirements

Header

 SoftUSBif.h

 

 

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Build date: 9/21/2010