View source for CoCoA:Print On

  <command>
    <title>Print On</title>
    <short_description>print to an output device</short_description>

    <description>
This command prints the value of expression E to the device D.
Currently, the command can be used to print to files, strings, or the
CoCoA window.  In the first two cases, the appropriate device must be
opened with <ttref>OpenOFile</ttref> or <ttref>OpenOString</ttref>.

<example>
  D := OpenOFile(<quotes>my-test</quotes>);  -- open <quotes>my-test</quotes> for output from CoCoA
  Print <quotes>hello world</quotes> On D;   -- print string into <quotes>mytest</quotes>
  Close(D);  -- close the file
  D := OpenIFile(<quotes>my-test</quotes>);  -- open <quotes>my-test</quotes> for input to CoCoA
  Get(D,3);  -- get the first three characters (in Ascii code)
[104, 101, 108]
-------------------------------
  Ascii(It);  -- convert the ascii code into characters
hel
-------------------------------
  Close(D);
</example>

See <ttref>OpenOFile</ttref> for an example using output strings.
For printing to the CoCoA window, just use <tt>Print E</tt> which is short for
<tt>Print E On DEV.OUT</tt>.
    </description>

    <syntax>
Print E:OBJECT On D:DEVICE
</syntax>

    <see>Introduction to IO</see>
    <see>OpenIFile</see>
    <see>OpenOFile</see>
    <see>OpenIString</see>
    <see>OpenOString</see>
    <see>Print</see>
    <see>PrintLn</see>

    <type>io</type>
    <type>printing</type>

    <key>print on</key>
  </command>