foreign-c/retropikzel/pffi/v0-2-0/schubert-doc.md

pffi

Procedures

pffi-call

Arguments:

• shared-object (object)
  • Shared object returned by pffi-shared-object-load or pffi-shared-object-auto-load
• name (symbol)
  • Name of the C function you want to call
• type (symbol)
  • Return type of the C function you want to call
• arguments (list (cons type value)...)
  • Arguments you want to pass to the C function as pairs of type and value

Example:

(define sdl2* (pffi-shared-object-auto-load "SDL2" (list))

(pffi-call sdl2* 'SDL_Init 'int '((int . 32)))

(define window* (pffi-call sdl2* 'SDL_CreateWindow 'pointer (list (cons 'pointer (pffi-string->pointer "Hello")) (cons 'int 1) (cons 'int 1) (cons 'int 400) (cons 'int 400) (cons 'int 4))

pffi-shared-object-load

Arguments:

• path (string) The path to the shared object you want to load, including any "lib" infront and .so/.dll at the end

Returns:

pffi-shared-object-auto-load

Arguments:

• object-name (symbol)
• The name of the dynamic library file you want to load without the "lib" in fron of it or .so/.dll at the end
• addition-paths (list (string)...)
• Any additional paths you want to search for the library

Returns:

• (object) Shared object, the type depends on the implementation