Retrieves the previous successful purchases.
BPS_API int paymentservice_get_existing_purchases_request(bool allow_refresh, const char *group_id, unsigned *request_id)
- A value of true specifies that the device should be allowed to refresh the list of purchases from the Payment Service server, When a value of false is specified, the current list of cached purchases is returned immediately.
- The window group ID of the application. This ID is required so that the Payment Service can properly display dialogs.
- The Payment Service populates this parameter upon successful completion of the request with the request ID. It can be used to correlate the response to the request.
The paymentservice_get_existing_purchases_request() function retrieves the previous successful purchases made by the end user from within the calling application.
BPS_SUCCESS upon success, BPS_FAILURE with the errno value set otherwise.