getEventElements: Identify all event interfaces in a type library.

In omegahat/SWinTypeLibs: Type Library Information Reader

Identify all event interfaces in a type library.

Description

This function implements a heuristic approach to finding all the elements within a type library that are interfaces used to handle events from a DCOM event source.

There are other approaches that may work better for different type libraries that use different conventions for identifying the event interface elements. Indeed, there are two versions of this function in the generate.S file in the source of this package. By default, this function is invoked if the caller of the top-level function generateInterface does not supply the names of the event interfaces. One can use a different function and supply the element names in the type library returned from that as the value of the events argument for generateInterface. So in this sense, this is just the default function that one can substitute with more customized approaches.

This function looks for all elements named Events. It then removes any elements named I*

Usage

getTypeLibEventElements(lib)

Arguments

lib	the type library in which to look for event interface elements.

Value

A character vector giving the names of the elements in the type library that are event interfaces.

This could usefully return the elements in the type library directly, rather than just their names.

Author(s)

Duncan Temple Lang <[e-mail]>

References

http://msdn.microsoft.com/library http://www.omegahat.org/RWinTypeLibs

See Also

generateInterface generateEventInterface

Examples

## Not run: 
  # Load excel type library. Use minor version of 1 to get anything higher than that.
  lib = LoadRegTypeLib("{00020813-0000-0000-C000-000000000046}", c(1, 1))
  getTypeLibEventElements(lib)

## End(Not run)

omegahat/SWinTypeLibs documentation built on Jan. 17, 2024, 6:40 p.m.