IPB_Value interface:
IsNull method
Description
Returns true if the IPB_Value instance contains a null value; otherwise, it returns false.
Syntax
IsNull( )
Return Values
pbboolean
Examples
This example tests whether an IPB_Value instance contains a null value before attempting to obtain its value:
if(ci->pArgs->GetAt(i)->IsObject())
{
if (ci->pArgs->GetAt(i)->IsNull())
pArguments[i].obj_val=0;
else
pArguments[i].obj_val =
ci->pArgs->GetAt(i)->GetObject();
continue;
}
...