Read File Contents into String Variable

Function/S ReadFileIntoString(pathName, filePath)
    String pathName     // Name of Igor symbolic path. Can be "" if filePath is a full path.
    String filePath         // File name, path relative to pathName, or full path
    
    Variable refNum
    Open/R/P=$pathName refNum as filePath
    
    FStatus refNum
    Variable numBytes = V_logEOF
    
    String data = PadString("", numBytes, 32)
    FBinRead refNum, data
    
    Close refNum
    
    return data
End