IPXS_PDFVariant::Arr_GetDouble Method

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Returns the value of a specified element of an array as a double value. If the specified element type is neither <code>PVT_Integer</code> nor <code>PVT_Double</code>, <code>nDefValue</code> is returned.
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Returns a double value of specified element of array. If specified element has not <code>PVT_Integer</code> or <code>PVT_Double</code> type, <code>nDefValue</code> returned.
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== Syntax ==
 
== Syntax ==
 
<pre class="brush:cpp;gutter:false">HRESULT Arr_GetDouble([in]                    ULONG    nIndex,
 
<pre class="brush:cpp;gutter:false">HRESULT Arr_GetDouble([in]                    ULONG    nIndex,
 
                       [in, defaultvalue(0.0)]  double  nDefValue,
 
                       [in, defaultvalue(0.0)]  double  nDefValue,
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                       [out, retval]            double*  pVal);</pre>
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                       [out, retval]            double*  nVal);</pre>
  
 
== Parameters ==
 
== Parameters ==
 
;nIndex
 
;nIndex
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:[in] Specifies an index of the element in the array.
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:[in] Specifies the index of the array element.
 
;nDefValue
 
;nDefValue
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:[in, defaultvalue(0)] Default value that will be returned when specified index is out of range or the element is not a boolean value.
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:[in, defaultvalue(0)] Default value that will be returned when specified index is out of range or the element is not a numeric value. If not specified, zero will be returned.
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;pVal
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;nVal
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:[out, retval] Pointer to double variable that receives returned value.
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:[out, retval] Pointer to the double variable that receives the returned value.
  
 
== Return Value ==
 
== Return Value ==
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== See Also ==
 
== See Also ==
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See also [[PXV:IPXS_PDFVariant|IPXS_PDFVariant]].
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[[PXV:IPXS_PDFVariant|IPXS_PDFVariant]]

Latest revision as of 02:42, 15 June 2015

PDF Structures Layer > Interfaces > IPXS_PDFVariant > IPXS_PDFVariant::Arr_GetDouble Method

Returns the value of a specified element of an array as a double value. If the specified element type is neither PVT_Integer nor PVT_Double, nDefValue is returned.

Syntax

HRESULT Arr_GetDouble([in]                     ULONG    nIndex,
                      [in, defaultvalue(0.0)]  double   nDefValue,
                      [out, retval]            double*  nVal);

Parameters

nIndex
[in] Specifies the index of the array element.
nDefValue
[in, defaultvalue(0)] Default value that will be returned when specified index is out of range or the element is not a numeric value. If not specified, zero will be returned.
nVal
[out, retval] Pointer to the double variable that receives the returned value.

Return Value

Returns S_OK if operation was successful or error code in other cases. Returns S_FALSE when nDefValue returned.

See Also

IPXS_PDFVariant

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