SafeArrayGetLBound

项目
06/30/2006

This function returns the lower bound for any dimension of a safearray.

HRESULT SafeArrayGetLBound(
  SAFEARRAY FAR* psa, 
  unsigned int nDim, 
  long FAR* plLbound 
);

Parameters

psa
[in] Pointer to an array descriptor created by SafeArrayCreate.
nDim
[in] Specifies the array dimension for which to get the lower bound.
plLbound
[out] Pointer to the location to return the lower bound.

Return Values

The following table shows the HRESULT values that can be returned by this function.

Value	Description
S_OK	Success.
DISP_E_BADINDEX	The specified index is out of bounds.
E_INVALIDARG	One of the arguments is invalid.

Remarks

Passing invalid (and under some circumstances NULL) pointers to this function causes an unexpected termination of the application.

Example

HRESULT
CEnumPoint::Create(SAFEARRAY FAR* psa, CEnumPoint FAR* FAR* ppenum)
{
  long lBound;
  HRESULT hresult;
  CEnumPoint FAR* penum;

  // Verify that the SafeArray is the proper shape.
  HRESULT = SafeArrayGetLBound(psa, 1, &lBound);
  if(FAILED(hresult))
    return hresult;

  // Code omitted here for brevity.

}

Requirements

OS Versions: Windows CE 2.0 and later.
Header: Oleauto.h.
Link Library: Oleaut32.lib.

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