late-binding

I am building an SDK that iPhone developers can include in their projects. It is delivered as a compiled ".a", without source code. Let's call my SDK "AAA". The customer in his project (let's call it "BBB"), in addition to use AAA, may also use a 3rd party library called "CCC" - which also comes pre-compiled, closed-source. I do not sell CCC, it's a different company. My SDK, AAA, can optionally use CCC to improve the product, using those 3rd party features. For example, let's say CCC is a security SDK to encrypt something. AAA does not require CCC, but will be more secured if the customer

Each employee gets an updated contact list. I'm creating a macro in Excel that will delete all outlook contacts, then import all the contacts on that sheet into their main outlook contacts. Not all users are on the same outlook version, so I can't use Early Binding methods since the Outlook OBJ Library cannot be referenced between versions. I managed to get my delete loop into late binding easily, but I'm having trouble getting the import code to work in late binding. Here is the working early binding method I currently have for the import: Dim olApp As Outlook.Application Dim olNamespace As

When discussing the evolution of computer languages, Alan Kay says that the single most important attribute of his Smalltalk is late binding; it gives the language its malleability and extensibility, and allows inappropriate coupling to be refactored out over time. Do you agree? Are there compensating advantages for early binding that explain why it seems to be the dominant of the two paradigms for domains where either could be used? My personal experience (which is not broad or deep enough to be authoritative), based on implement web applications with javascript, jQuery, jsext, actionscript,

I have a question on C++ double dispatch. In the code below, I want the results from the second set to match the results from the first set. I don't know the actual type (unless I try dynamic_cast) but I do know that the object inherited from the BaseClass type. What is the most efficient (performance-wise) way to accomplish this? After googling around for a while I found out about double dispatch and the loki multimethods. The problem I have with the Shape examples is that in my application, Processor and BaseClass are entirely independent and don't have a common method that they can call in

Can I make an Extension method for all the subclasses of System.Object (everything)? Example: <Extension> Public Function MyExtension(value As Object) As Object Return value End Function The above functions won't work for object instance: Dim myObj1 As New Object() Dim myObj2 = myObj1.MyExtension() The compiler does not accept it, is the problem in my computer? :) UPDATE The problem seems to occur only in VB, where members of object are looked-up by reflection ( late-bound ). UPDATE AFTER ANSWERED FYI, as vb has an advantage that C# lacks that is, members of imported Modules are imported to

i am developing some code in c# where i will be interacting with Microsoft Word. I want to be able to have the option of re-using an existing instance or as an alternative creating a new instance. Keeping in mind i want to do all of this using LATE BINDING... it is safe to say i have figured out how to get things working when creating a new instance.. i just call Activator.CreateInstance etc.. The problem i am having is how do i reuse an existing instance, for example, Word is already open and i want to use that instance. Is there an Activator.UseExistingInstance? or something similar?? Thanks