xref: /aoo41x/main/udkapi/com/sun/star/io/XSeekable.idl (revision cdf0e10c)
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27#ifndef __com_sun_star_io_XSeekable_idl__
28#define __com_sun_star_io_XSeekable_idl__
29
30#ifndef __com_sun_star_uno_XInterface_idl__
31#include <com/sun/star/uno/XInterface.idl>
32#endif
33
34#ifndef __com_sun_star_io_IOException_idl__
35#include <com/sun/star/io/IOException.idl>
36#endif
37#ifndef __com_sun_star_lang_IllegalArgumentException_idl__
38#include <com/sun/star/lang/IllegalArgumentException.idl>
39#endif
40
41//=============================================================================
42
43module com {  module sun {  module star {  module io {
44
45//=============================================================================
46
47// DocMerge from xml: interface com::sun::star::io::XSeekable
48/** makes it possible to seek to a certain position within a stream.
49
50	<p>This interface should be supported, if it is possible to access the
51	data at the new position quickly.
52	You should not support this interface, if you have a continuous
53	stream, for example, a video stream.
54 */
55published interface XSeekable: com::sun::star::uno::XInterface
56{
57
58	// DocMerge from xml: method com::sun::star::io::XSeekable::seek
59	/** changes the seek pointer to a new location relative to the beginning of the stream.
60
61
62		<p> This method changes the seek pointer so subsequent reads and writes can take place at a different
63		location in the stream object. It is an error to seek before the beginning of the stream or after the
64		end of the stream. </p>
65
66        @throws com::sun::star::lang::IllegalArgumentException in case location is negative or greater than <member>XSeekable::getLength</member>.
67	 */
68	void seek( [in] hyper location )
69		raises( com::sun::star::lang::IllegalArgumentException, com::sun::star::io::IOException );
70
71
72	// DocMerge from xml: method com::sun::star::io::XSeekable::getPosition
73	/** returns the current offset of the stream.
74       @returns
75			 the current offset in this stream.
76	 */
77	hyper getPosition()
78		raises( com::sun::star::io::IOException );
79
80
81	// DocMerge from xml: method com::sun::star::io::XSeekable::getLength
82	/** returns the length of the stream.
83       @returns
84			the length of the storage medium on which the stream works.
85	 */
86	hyper getLength()
87		raises( com::sun::star::io::IOException );
88};
89
90//=============================================================================
91
92}; }; }; };
93#endif
94