Interface AttrFilterFunc

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 AttrFilterFunc extends FunctionPointer

Functional interface declaration of the AttrFilterFunc callback.

See Also:

  • Method Details

    • run

      boolean run(Attribute attribute)
      Type of a function filtering a list of attributes.
      Parameters:
      attribute - a Pango attribute
      Returns:
      true if the attribute should be selected for filtering, false otherwise.

    • upcall

      default int upcall(MemorySegment attribute, MemorySegment userData)
      The upcall method is called from native code. The parameters are marshaled and run(Attribute) 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