Method Get():updateBuffer() Foundation
Updates and redisplays the edit buffer.
:updateBuffer() --> self
:updateBuffer() returns a reference to the Get object.
When a Get object has input focus the method :updateBuffer() updates the edit buffer with the current value of the associated variable, and redisplays the Get. In this way, for example, a validation code block can change the value of the associated variable and redisplay it on screen.
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