4. Designing and Writing OpenROAD Server Applications : OpenROAD Application Requirements : Ghost Frame
 
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Ghost Frame
The starting ghost frame provides an execution context for the procedures invoked through the OpenROAD Server. This frame is not required to do anything, but optionally it can prepare the execution environment by establishing database connections and initializing global variables, possibly based on command line flags that were passed to it.
Note:  Event blocks in the ghost frame will never be executed. An application running under the OpenROAD Server context is driven entirely by synchronous 4GL procedure calls and not by any other kinds of events.