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/*
 * Copyright (c) 2011 Denis Tulskiy
 *
 * The contents of this file is dual-licensed under 2
 * alternative Open Source/Free licenses: LGPL 2.1 or later and
 * Apache License 2.0. (starting with JNA version 4.0.0).
 *
 * You can freely decide which license you want to apply to
 * the project.
 *
 * You may obtain a copy of the LGPL License at:
 *
 * http://www.gnu.org/licenses/licenses.html
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "LGPL2.1".
 *
 * You may obtain a copy of the Apache License at:
 *
 * http://www.apache.org/licenses/
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "AL2.0".
 */

package com.sun.jna.platform.mac;

import java.nio.IntBuffer;
import java.util.List;

import com.sun.jna.Library;
import com.sun.jna.Callback;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.Structure.FieldOrder;
import com.sun.jna.ptr.PointerByReference;

/**
 * Author: Denis Tulskiy
 * Date: 7/25/11
 */
public interface Carbon extends Library {
    Carbon INSTANCE = Native.load("Carbon", Carbon.class);

    int cmdKey = 0x0100;
    int shiftKey = 0x0200;
    int optionKey = 0x0800;
    int controlKey = 0x1000;

    /**
     * Obtains the event target reference for the standard toolbox dispatcher
     * @return event dispatcher reference
     */
    Pointer GetEventDispatcherTarget();

    /**
     * Installs an event handler on a specified event target.
     */
    int InstallEventHandler(Pointer inTarget, EventHandlerProcPtr inHandler, int inNumTypes, EventTypeSpec[] inList, Pointer inUserData, PointerByReference outRef);

    /**
     * Registers a global hot key.
     */
    int RegisterEventHotKey(int inHotKeyCode, int inHotKeyModifiers, EventHotKeyID.ByValue inHotKeyID, Pointer inTarget, int inOptions, PointerByReference outRef);

    /**
     * Obtains a parameter from the specified event.
     */
    int GetEventParameter(Pointer inEvent, int inName, int inDesiredType, Pointer outActualType, int inBufferSize, IntBuffer outActualSize, EventHotKeyID outData);

    /**
     * Removes the specified event handler
     */
    int RemoveEventHandler(Pointer inHandlerRef);

    /**
     * Unregisters a global hot key.
     */
    int UnregisterEventHotKey(Pointer inHotKey);

    @FieldOrder({"eventClass", "eventKind"})
    public class EventTypeSpec extends Structure {
        public int eventClass;
        public int eventKind;
    }

    @FieldOrder({"signature", "id"})
    public static class EventHotKeyID extends Structure {
        public int signature;
        public int id;

        public static class ByValue extends EventHotKeyID implements Structure.ByValue { }
    }

    public static interface EventHandlerProcPtr extends Callback {
        public int callback(Pointer inHandlerCallRef, Pointer inEvent, Pointer inUserData);
    }
}