Source to bsd/dev/i386/PCPointerDefs.h

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License."
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

/* 	Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. 
 *
 * PCPointerDefs.h - PC Mouse Defs for clients
 *
 * HISTORY
 * 09 Sep 1992    Joe Pasqua
 *      Created. 
 */

// TO DO:
//
// NOTES:
// * This module defines types and protocols for use by PCPointer clients.
//

#ifdef	DRIVER_PRIVATE

//
// The following structure defines an event on the pointer.
// We pass events of this form to the object registered as
// our event target.
//
typedef struct _t_PCPointerEvent {
    ns_time_t timeStamp;	// When did this event happen
    union {
	unsigned char buf[4];
	struct {
	    unsigned int leftButton:1;
	    unsigned int rightButton:1;
	    unsigned int pad:6;
	    int dx:8;
	    int dy:8;
	} values;
    } data;
} PCPointerEvent;


//
// The following protocol must be implemented by any class that wishes to
// receive pointer events. When such a class wishes to receive events it
// invokes the setEventTarget: method of the PCPointer instance specifying
// itself as the target. When the PCPointer instance has an event to dispatch,
// it will invoke the dispatchMouseEvent: method defined in this protocol.
//
@protocol PCPointerTarget

- (void)dispatchPointerEvent:(PCPointerEvent *)event;

@end

#endif	/* DRIVER_PRIVATE */