coclass attribute
The coclass statement provides a listing of the supported interfaces for a component object.
[
coclass-attribute-list
]
coclass classname
{
[
interface-attributes
]
[interface | dispinterface] interfacename
{
. . .
}
}
Parameters
-
coclass-attribute-list
-
The [uuid] attribute is required on a coclass. This is the same [uuid] that is registered as a CLSID in the system registration database. The [helpstring], [helpcontext], [licensed], [version], [control], [hidden], and [appobject] attributes are accepted, but not required, before a coclass definition.
-
classname
-
Name by which the common object is known in the type library.
-
interface-attributes
-
Optional attributes for the interface or dispinterface. The [source], [default], and [restricted] attributes are accepted on an interface or dispinterface within a coclass.
-
interfacename
-
Either an interface declared with the interface keyword, or a dispinterface declared with the dispinterface keyword.
Remarks
The Microsoft Component Object Model defines a class as an implementation that allows QueryInterface between a set of interfaces.
Examples
[
uuid(1e196b20-1f3c-1069-996b-00dd010fe676),
version(1.0),
helpstring("A class"),
helpcontext(2481), appobject
]
coclass myapp
{
[source] interface IMydocfuncs : IUnknown;
dispinterface DMydocfuncs;
};
[
uuid(12345678-1234-1234-1234-123456789ABC)
]
coclass mycoclass
{
[restricted] interface iface1;
interface iface2;
}
See also