Interface Seat.ToolAddedCallback

All Superinterfaces:
FunctionPointer
Enclosing class:
Seat
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public static interface Seat.ToolAddedCallback extends FunctionPointer

Functional interface declaration of the ToolAddedCallback callback.

See Also:

  • Method Details

    • run

      void run(@Nullable DeviceTool tool)

      Emitted whenever a new tool is made known to the seat.

      The tool may later be assigned to a device (i.e. on proximity with a tablet). The device will emit the Gdk.Device::tool-changed signal accordingly.

      A same tool may be used by several devices.

    • upcall

      default void upcall(MemorySegment sourceSeat, MemorySegment tool)
      The upcall method is called from native code. The parameters are marshaled and run(DeviceTool) 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