Example Ptype Signature for Ttmedia_ptype_declare Function

Example D-5 is an example of the signature layout of a media ptype.

Example D-5 Example of Media Ptype Signature Layout

ptype Acme_Calc {
     start "acalc";
     handle:
        /*
          * Display Acme_Sheet
          * Include in tool's ptype if tool can display a document.
          */
         session Display( in    Acme_Sheet  contents     ) => start opnum = 1;
         session Display( in    Acme_Sheet  contents,
                          in    messageID   counterfoil  ) => start opnum = 2;
         session Display( in    Acme_Sheet  contents,
                          in    title       docName      ) => start opnum = 3;
         session Display( in    Acme_Sheet  contents,
                          in    messageID   counterfoil,
                          in    title       docName      ) => start opnum = 4;
         /*
          * Edit Acme_Sheet
          * Include in tool's ptype if tool can edit a document.
          */
         session Edit(    inout Acme_Sheet  contents     ) => start opnum = 101;
         session Edit(    inout Acme_Sheet  contents,
                          in    messageID   counterfoil  ) => start opnum = 102;
         session Edit(    inout Acme_Sheet  contents,
                          in    title       docName      ) => start opnum = 103;
         session Edit(    inout Acme_Sheet  contents,
                          in    messageID   counterfoil,
                          in    title       docName      ) => start opnum = 104;
         /*
          * Compose Acme_Sheet
          * Include in tool's ptype if tool can compose a document from scratch.
          */
         session Edit(    out   Acme_Sheet  contents     ) => start opnum = 201;
         session Edit(    out   Acme_Sheet  contents,
                          in    messageID   counterfoil  ) => start opnum = 202;
         session Edit(    out   Acme_Sheet  contents,
                          in    title       docName      ) => start opnum = 203;
         session Edit(    out   Acme_Sheet  contents,
                          in    messageID   counterfoil,
                          in    title       docName      ) => start opnum = 204;
         /*
          * Mail Acme_Sheet
          * Include in tool's ptype if tool can mail a document.
          */
         session Mail(    in    Acme_Sheet  contents     ) => start opnum = 301;
         session Mail(    inout Acme_Sheet  contents     ) => start opnum = 311;
         session Mail(    inout Acme_Sheet  contents,
                          in    title       docName      ) => start opnum = 313;
         session Mail(    out   Acme_Sheet  contents     ) => start opnum = 321;
         session Mail(    out   Acme_Sheet  contents,
                          in    messageID   counterfoil  ) => start opnum = 323; 
};