HRESULT GetExtensionProperty(
BSTR bstrPropertyNamej// in
BSTR *pbstrPropertyValue// out
);
The GetExtensionProperty function is a callback function that retrieves the value of a specified property from the script.
If the payment builder needs extra information to generate its payment instruction (the merchant name or identifier, for example), these properties can be set from JavaScript using the IPaySlideSelector's SetExtension property. The payment builder can then use ICreditCardEncryption2_Callback's GetExtensionProperty to retrieve this value.