drscheme:unit:open-drscheme-window in DrScheme Tools Functions

• (drscheme:unit:open-drscheme-window) -> (is-a?/c drscheme:unit:frame%)

  
  

• (drscheme:unit:open-drscheme-window filename) -> (is-a?/c drscheme:unit:frame%)
     filename : (or/c string? false/c)

  Opens a drscheme frame that displays filename, or nothing if filename is #f or not supplied.