Platform SDK: Interprocess Communications

Atom Types

Applications can create two types of atoms: string atoms and integer atoms. The values of integer atoms and string atoms do not overlap, so both types of atoms can be used in the same block of code.

Several Win32 functions accept either strings or atoms as parameters. When passing an atom to these functions, an application can use the MAKEINTATOM macro to convert the atom into a form that can be used by the function.

The following sections describe atom types.