summaryrefslogtreecommitdiffstats
path: root/source/text/sbasic/shared/03020102.xhp
blob: 66160f95e1208f98f77bf635d75edcbd631afbdb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
<?xml version="1.0" encoding="UTF-8"?>
<helpdocument version="1.0">
<!--
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
-->

<meta>
  <topic id="textsbasicshared03020102xml" indexer="include" status="PUBLISH">
    <title id="tit" xml-lang="en-US">FreeFile Function</title>
    <filename>/text/sbasic/shared/03020102.xhp</filename>
  </topic>
</meta>

<body>


<section id="freefile">
<bookmark xml-lang="en-US" branch="index" id="bm_id3150400">
  <bookmark_value>FreeFile function</bookmark_value>
</bookmark>


<paragraph id="hd_id3150400" role="heading" level="1" xml-lang="en-US"><link href="text/sbasic/shared/03020102.xhp" name="FreeFile Function">FreeFile Function</link></paragraph>
<paragraph id="par_id3154366" role="paragraph" xml-lang="en-US">Returns the next available file number for opening a file. Use this function to open a file using a file number that is not already in use by a currently open file.</paragraph>
</section>

<paragraph id="hd_id3150769" role="heading" level="2" xml-lang="en-US">Syntax:</paragraph>
<bascode>
<paragraph id="par_idm1341602048" role="bascode" localize="false" xml-lang="en-US">FreeFile</paragraph>
</bascode>

<paragraph id="hd_id3151042" role="heading" level="2" xml-lang="en-US">Return value:</paragraph>
<paragraph id="par_id3150440" role="paragraph" xml-lang="en-US">Integer</paragraph>

<paragraph id="hd_id3148576" role="heading" level="2" xml-lang="en-US">Parameters:</paragraph>
<paragraph id="par_id3155854" role="paragraph" xml-lang="en-US">This function can only be used immediately in front of an Open statement. FreeFile returns the next available file number, but does not reserve it.</paragraph>
<embed href="text/sbasic/shared/00000003.xhp#errorcode"/>
<embed href="text/sbasic/shared/00000003.xhp#err5"/>
<embed href="text/sbasic/shared/00000003.xhp#err67"/>

<paragraph id="hd_id3159153" role="heading" level="2" xml-lang="en-US">Example:</paragraph>
<bascode>
<paragraph id="par_idm1341589136" role="bascode" localize="false" xml-lang="en-US">Sub ExampleWorkWithAFile</paragraph>
<paragraph id="par_idm1341587888" role="bascode" localize="false" xml-lang="en-US">Dim iNumber As Integer</paragraph>
<paragraph id="par_idm1341586656" role="bascode" localize="false" xml-lang="en-US">Dim sLine As String</paragraph>
<paragraph id="par_idm1341585424" role="bascode" localize="false" xml-lang="en-US">Dim aFile As String</paragraph>
<paragraph id="par_idm1341584192" role="bascode" localize="false" xml-lang="en-US">Dim sMsg As String</paragraph>
<paragraph id="par_idm1341582960" role="bascode" localize="false" xml-lang="en-US">    aFile = "c:\data.txt"</paragraph>
<paragraph id="par_idm1341581712" role="bascode" localize="false" xml-lang="en-US">    sMsg = ""</paragraph>
<paragraph id="par_idm1341580480" role="bascode" localize="false" xml-lang="en-US">    iNumber = Freefile</paragraph>
<paragraph id="par_idm1341579248" role="bascode" localize="false" xml-lang="en-US">    Open aFile For Output As #iNumber</paragraph>
<paragraph id="par_id3155416" role="bascode" xml-lang="en-US">    Print #iNumber, "First line of text"</paragraph>
<paragraph id="par_id3153416" role="bascode" xml-lang="en-US">    Print #iNumber, "Another line of text"</paragraph>
<paragraph id="par_idm1341574464" role="bascode" localize="false" xml-lang="en-US">    Close #iNumber</paragraph>
<paragraph id="par_idm1341573232" role="bascode" localize="false" xml-lang="en-US">    iNumber = Freefile</paragraph>
<paragraph id="par_idm1341572000" role="bascode" localize="false" xml-lang="en-US">    Open aFile For Input As #iNumber</paragraph>
<paragraph id="par_idm1341570752" role="bascode" localize="false" xml-lang="en-US">    While Not eof(#iNumber)</paragraph>
<paragraph id="par_idm1341569504" role="bascode" localize="false" xml-lang="en-US">        Line Input #iNumber, sLine</paragraph>
<paragraph id="par_idm1341568256" role="bascode" localize="false" xml-lang="en-US">        If sLine &lt;&gt;"" Then</paragraph>
<paragraph id="par_idm1341567008" role="bascode" localize="false" xml-lang="en-US">            sMsg = sMsg &amp; sLine &amp; chr(13)</paragraph>
<paragraph id="par_idm1341565744" role="bascode" localize="false" xml-lang="en-US">        End If</paragraph>
<paragraph id="par_idm1341564512" role="bascode" localize="false" xml-lang="en-US">    Wend</paragraph>
<paragraph id="par_idm1341563280" role="bascode" localize="false" xml-lang="en-US">    Close #iNumber</paragraph>
<paragraph id="par_idm1341562048" role="bascode" localize="false" xml-lang="en-US">    MsgBox sMsg</paragraph>
<paragraph id="par_idm1341560816" role="bascode" localize="false" xml-lang="en-US">End Sub</paragraph>
</bascode>
</body>

</helpdocument>