Microsoft Windows

Required software

The Microsoft Visual Studio C++ compiler, or another compatible compiler, and the Windows Software Development Kit are required to write user primitives. The user primitive DLLs must be created under Windows.

User primitives

User primitives must be placed in a separate DLL. The DLL name must be specified in the Smalltalk primitive declaration.

PlatformFunction calling convention

All 32-bit functions called using the PlatformFunction mechanism must be declared with the ‘c’ or ‘cdecl’ calling convention.

All 64-bit functions called using the PlatformFunction mechanism must be declared with the ‘c’ calling convention.