IPB_Value interface:
SetToNull method
Description
Sets the data contained in the IPB_Value instance
to null so the data can be reset.
Syntax
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SetToNull( ) |
Return Values
PBXRESULT. If the value is a read-only argument, the error PBX_E_READONLY_ARGS
is returned.
Examples
This example shows the use of SetToNull when
a null blob value is returned:
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case pbvalue_blob:<br>   pStr=(LPCTSTR)Session-> GetBlob(retVal.blob_val); <br>   if (strncmp(pStr, "null", 4)==0 )<br>      ci->returnValue-><span>SetToNull</span>();<br>   else<br>      ci->returnValue->SetBlob(retVal.blob_val);<br>    break;<br>... |
See Also
Document get from Powerbuilder help
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