4.6.6 Defining type information for dispatch methods

The type information for the methods in Section 4.6.4 might look like this:

make(<disp-type-info>, 
     properties: vector(...),
                 methods: 
                   vector(make(<function-description>,
                               function: foo,
                               name: "foo"),
                          make(<function-description>,
                               function: bar,
                               name: "bar",
                               argument-names: #["name", "color",
                                                 "size"],
                               argument-types: vector(<BSTR>,
                                                      <BSTR>,
                                                      <C-long>),
                               result-type: <C-unsigned>)))

The argument-types: and result-type: options are the C type designators if they can not properly be inferred from introspection of the designated function:. See <disp-type-info>, page 203 for other options you can use.

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OLE, COM, ActiveX and DBMS Reference - 31 MAR 2000