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/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved.
*
* IODisplay.h - Abstract superclass for all IODisplay objects.
*
*
* HISTORY
* 01 Sep 92 Joe Pasqua
* Created.
* 24 Jun 93 Derek B Clegg
* Moved to driverkit; minor cleanup.
* 4 Aug 1993 Erik Kay at NeXT
* minor API cleanup
*/
#ifndef __IODISPLAY_H__
#define __IODISPLAY_H__
#import <driverkit/IODevice.h>
#import <driverkit/IODirectDevice.h>
#import <driverkit/displayDefs.h>
#import <driverkit/eventProtocols.h>
@interface IODisplay: IODirectDevice <IOScreenEvents>
{
@private
IODisplayInfo _display; /* Parameters describing the display. */
int _token; /* Token. */
/* Reserved for future expansion. */
unsigned int _IODisplay_reserved[18];
}
/* Returns a pointer to an IODisplayInfo describing the display.*/
- (IODisplayInfo *)displayInfo;
/* Handles NeXT-internal parameters specific to IODisplays; forwards*/
/* the handling of all other parameters to `super'.*/
- (IOReturn)getIntValues : (unsigned *)parameterArray
forParameter : (IOParameterName)parameterName
count : (unsigned *)count;
/* Returns the registration token for this display.*/
- (int)token;
/* Sets the registration token for this display.*/
- (void)setToken:(int)token;
/* `IOScreenEvents' protocol methods reimplemented by this class.*/
- (port_t)devicePort;
@end
#endif /* __IODISPLAY_H__ */
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