Is_Open

Is_Open

 

Is_Open is a function used to determine if a graphics window is already open. Is_Open returns Yes (True) if a RaptorGraph window is open and No (False) if not. Because it returns a value of Yes (True) or No (False), it can be used only where such a value is allowed, namely in the diamond symbol of a selection or loop structure.

 

Example:

 

IS_OPEN.BMP