| Previous | Table of Contents | Next |
A hierarchy of singly-inherited OMG IDL interfaces maps to an identical hierarchy of Automation View Interfaces.
For example, given the interface account and its derived interface checkingAccount defined as follows,
module MyModule { // OMG IDL
interface account { attribute float balance; readonly attributestring owner; void makeLodgement (in float amount, out float
balance);
void makeWithdrawal (in float amount, out float
theBalance); }; interface checkingAccount: account {
readonly attribute float overdraftLimit; boolean orderChequeBook (); }; };
the corresponding Automation View Interfaces are as follows
// ODL[odl, dual, uuid(20c31e22-dcb2-aa79-1dc4-34a4ad297579)]interface DIMyModule_account: IDispatch {
HRESULT makeLodgement( [in] float amount,[out] float * balance, [optional, out] VARIANT * excep_OBJ);HRESULT makeWithdrawal( [in] float amount,[out] float * balance,
[optional, out] VARIANT * excep_OBJ);[propget] HRESULT balance( [retval,out] float * val);[propput] HRESULT balance( [in] float balance);[propget] HRESULT owner( [retval,out] BSTR * val);
};
[odl, dual, uuid(ffe752b2-a73f-2a28-1de4-21754778ab4b)]interface DIMyModule_checkingAccount: IMyModule_account {
HRESULT orderChequeBook([optional, out] VARIANT * excep_OBJ, [retval,out] short * val);[propget] HRESULT overdraftLimit ([retval,out] short * val);
};