How to use REGISTER.ID function in Excel
Summary: This tutorial walks you through how to use the REGISTER.ID() function in Excel, a specialized function used in connection with Dynamic Data Exchange (DDE), a protocol for interprocess communication under Windows.
Step 1: Understand the REGISTER.ID function
The REGISTER.ID() function has the following syntax:
=REGISTER.ID(module_text, procedure, type_text, function_text, argument_text)
Here's what each parameter signifies:
module_text: This is the name of the DLL or XLL that contains the procedure.procedure: This is the name of the DLL or XLL procedure that you want to call.type_text: This defines the type of procedure. It's a string of characters where each character corresponds to a parameter.function_text: This is the function name that will be used in Excel to call the procedure.argument_text: This is optional and specifies the names of the arguments to be used in Excel.
Step 2: Use the REGISTER.ID function Let's say you have a DLL named "myLibrary.dll" with a function named "Add" that adds two numbers. You would call it like this:
=REGISTER.ID("myLibrary", "Add", "JJJ", "Add", "Number1, Number2")
This would allow you to use the function Add() in Excel to add two numbers.
Remember, incorrect usage of this function can lead to Excel crashes and potential data loss, so use it with care. For more on this, consult Microsoft's official documentation:
