Functions Included in This Chapter

The functions listed in this chapter include the following:

• The Excel4 and Excel4v callback functions.
• Functions you are likely to use to interact with Microsoft Excel DLLs from a macro sheet: CALL, REGISTER, REGISTER.ID, and UNREGISTER.
• Functions that are especially useful in DLLs: CALLER and EVALUATE.
• Microsoft Excel special service functions, which can be called only from DLLs:

• Functions you should provide in your XLL to qualify as a stand-alone DLL (XLL):

• Functions in the Framework library, which provide a good starting point for writing Microsoft Excel DLLs and XLLs.

The following are the macro control functions that cannot be called from DLLs: