Interface PrinterFunc

All Superinterfaces:
FunctionPointer
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface @Generated("org.javagi.JavaGI") public interface PrinterFunc extends FunctionPointer

Functional interface declaration of the PrinterFunc callback.

See Also:

  • Method Details

    • run

      boolean run(Printer printer)

      The type of function passed to gtk_enumerate_printers().

      Note that you need to ref printer, if you want to keep a reference to it after the function has returned.

      Parameters:
      printer - a GtkPrinter
      Returns:
      true to stop the enumeration, false to continue

    • upcall

      default int upcall(MemorySegment printer, MemorySegment data)
      The upcall method is called from native code. The parameters are marshaled and run(Printer) is executed.

    • toCallback

      default MemorySegment toCallback(Arena arena)
      Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.
      Specified by:
      toCallback in interface FunctionPointer
      Parameters:
      arena - the arena in which the function pointer is allocated
      Returns:
      the native function pointer