1<?xml version="1.0" encoding="UTF-8"?> 2 3<!--*********************************************************** 4 * 5 * Licensed to the Apache Software Foundation (ASF) under one 6 * or more contributor license agreements. See the NOTICE file 7 * distributed with this work for additional information 8 * regarding copyright ownership. The ASF licenses this file 9 * to you under the Apache License, Version 2.0 (the 10 * "License"); you may not use this file except in compliance 11 * with the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, 16 * software distributed under the License is distributed on an 17 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 18 * KIND, either express or implied. See the License for the 19 * specific language governing permissions and limitations 20 * under the License. 21 * 22 ***********************************************************--> 23 24<helpdocument version="1.0"> 25<meta> 26<topic id="textsbasicshared03100100xml" indexer="include" status="PUBLISH"> 27<title id="tit" xml-lang="en-US">CBool Function [Runtime]</title> 28<filename>/text/sbasic/shared/03100100.xhp</filename> 29</topic> 30</meta> 31<body> 32<section id="cbool"> 33<bookmark xml-lang="en-US" branch="index" id="bm_id3150616"> 34<bookmark_value>CBool function</bookmark_value> 35</bookmark> 36<paragraph role="heading" id="hd_id3150616" xml-lang="en-US" level="1" l10n="U"><link href="text/sbasic/shared/03100100.xhp" name="CBool Function [Runtime]">CBool Function [Runtime]</link></paragraph> 37<paragraph role="paragraph" id="par_id3145136" xml-lang="en-US" l10n="U">Converts a string comparison or numeric comparison to a Boolean expression, or converts a single numeric expression to a Boolean expression.</paragraph> 38</section> 39<paragraph role="heading" id="hd_id3153345" xml-lang="en-US" level="2" l10n="U">Syntax:</paragraph> 40<paragraph role="paragraph" id="par_id3149514" xml-lang="en-US" l10n="U">CBool (Expression1 {= | <> | < | > | <= | >=} Expression2) or CBool (Number)</paragraph> 41<paragraph role="heading" id="hd_id3156152" xml-lang="en-US" level="2" l10n="U">Return value:</paragraph> 42<paragraph role="paragraph" id="par_id3155419" xml-lang="en-US" l10n="U">Bool</paragraph> 43<paragraph role="heading" id="hd_id3147530" xml-lang="en-US" level="2" l10n="U">Parameters:</paragraph> 44<paragraph role="paragraph" id="par_id3156344" xml-lang="en-US" l10n="U"><emph>Expression1, Expression2:</emph> Any string or numeric expressions that you want to compare. If the expressions match, the <emph>CBool</emph> function returns <emph>True</emph>, otherwise <emph>False</emph> is returned.</paragraph> 45<paragraph role="paragraph" id="par_id3149655" xml-lang="en-US" l10n="U"><emph>Number:</emph> Any numeric expression that you want to convert. If the expression equals 0, <emph>False</emph> is returned, otherwise <emph>True</emph> is returned.</paragraph> 46<paragraph role="paragraph" id="par_id3145171" xml-lang="en-US" l10n="U">The following example uses the <emph>CBool</emph> function to evaluate the value that is returned by the <emph>Instr</emph> function. The function checks if the word "and" is found in the sentence that was entered by the user.</paragraph> 47<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 48<embed href="text/sbasic/shared/00000003.xhp#err5"/> 49<paragraph role="heading" id="hd_id3156212" xml-lang="en-US" level="2" l10n="U">Example:</paragraph> 50<paragraph role="paragraph" id="par_id3147288" xml-lang="en-US" l10n="U">Sub ExampleCBool</paragraph> 51<paragraph role="paragraph" id="par_id3153768" xml-lang="en-US" l10n="U">Dim sText As String</paragraph> 52<paragraph role="paragraph" id="par_id3155132" xml-lang="en-US" l10n="U">sText = InputBox("Please enter a short sentence:")</paragraph> 53<paragraph role="paragraph" id="par_id3155855" xml-lang="en-US" l10n="U">REM Proof if the word »and« appears in the sentence.</paragraph> 54<paragraph role="paragraph" id="par_id3146984" xml-lang="en-US" l10n="U">REM Instead of the command line</paragraph> 55<paragraph role="paragraph" id="par_id3148576" xml-lang="en-US" l10n="U">REM If Instr(Input, "and")<>0 Then...</paragraph> 56<paragraph role="paragraph" id="par_id3154014" xml-lang="en-US" l10n="U">REM the CBool function is applied as follows:</paragraph> 57<paragraph role="paragraph" id="par_id3155413" xml-lang="en-US" l10n="U">If CBool(Instr(sText, "and")) Then</paragraph> 58<paragraph role="paragraph" id="par_id3152940" xml-lang="en-US" l10n="U">MsgBox "The word »and« appears in the sentence you entered!"</paragraph> 59<paragraph role="paragraph" id="par_id3153954" xml-lang="en-US" l10n="U">EndIf</paragraph> 60<paragraph role="paragraph" id="par_id3152886" xml-lang="en-US" l10n="U">End Sub</paragraph> 61</body> 62</helpdocument> 63