|Navigation: Language Reference > 2 - Program Source Code Format > Prototype Attributes >====== DLL (set procedure defined externally in .DLL) ======|
DLL( [ flag ] )
|DLL||Declares a PROCEDURE defined externally in a .DLL.|
|flag||A numeric constant, equate, or Project system define which specifies the attribute as active or not. If the flag is zero, the attribute is not active, just as if it were not present. If the flag is any value other than zero, the attribute is active. Uniquely, it may be an undefined label, in which case the attribute is active.|
The DLL attribute specifies that the PROCEDURE on whose prototype it is placed is defined in a .DLL. The DLL attribute is required for 32-bit applications because .DLLs are relocatable in a 32-bit flat address space, which requires one extra dereference by the compiler to address the procedure.
MODULE('STDFuncs.DLL') !A standard functions .DLL
Func50 PROCEDURE(SREAL),REAL,PASCAL,DLL(dll_mode) !