# InterfaceArea
Interface area is the area where mainscreen interfaces can occupy.


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## TRSInterfaceArea.IsOpen
```pascal
function TRSInterfaceArea.IsOpen(interfaceType: ERSInterfaceType = ERSInterfaceType.ANY): Boolean;
```
Returns True/False if any interface is found open.


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## TRSInterfaceArea.WaitOpen
```pascal
function TRSInterfaceArea.WaitOpen(interfaceType: ERSInterfaceType = ERSInterfaceType.ANY; time: Integer = 600; interval: Integer = -1): Boolean;
```
Returns True/False if any interface is found open within `time` milliseconds.