THPDFJSONValue.GetMember
Returns the object member stored under a key, or nil when the value is not an object or the key is missing
function GetMember(const Key: AnsiString): THPDFJSONValue;
The unit is HPDFDocJobs; the returned value belongs to this container and must not be freed by the caller
Typed accessors such as GetStr, GetInt and GetArr wrap this lookup for scalar and array members
Member names are compared byte-wise as UTF-8 and are case-sensitive