The Synergy routine call block API enables you to dynamically generate routine calls at runtime, rather than at compile time. It is not available in Synergy .NET. See ^VARARGARRAY for information on how to achieve similar functionality in that environment.
Understanding the Synergy routine call block API
%RCB_CALL - Call a routine using a routine call block
%RCB_CREATE - Create a routine call block
RCB_DELARG - Delete an argument from a routine call block
RCB_DELETE - Delete a routine call block
RCB_INSARG - Insert argument into an existing routine call block
RCB_SETARG - Set an argument in the routine call block
