EXTERNDEF
Defines one or more external variables, labels, or symbols called name whose type is type.
Syntax
EXTERNDEF ⟦language-type⟧ name:type ⟦, ⟦language-type⟧ name:type ...⟧
Remarks
The language-type argument is valid in 32-bit MASM only.
If name is defined in the module, it is treated as PUBLIC. If name is referenced in the module, it is treated as EXTERN. If name is not referenced, it is ignored. The type can be ABS, which imports name as a constant. Normally used in include files.