1<?xml version="1.0" encoding="UTF-8"?> 2 3 4<!--*********************************************************** 5 * 6 * Licensed to the Apache Software Foundation (ASF) under one 7 * or more contributor license agreements. See the NOTICE file 8 * distributed with this work for additional information 9 * regarding copyright ownership. The ASF licenses this file 10 * to you under the Apache License, Version 2.0 (the 11 * "License"); you may not use this file except in compliance 12 * with the License. You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, 17 * software distributed under the License is distributed on an 18 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 19 * KIND, either express or implied. See the License for the 20 * specific language governing permissions and limitations 21 * under the License. 22 * 23 ***********************************************************--> 24 25 26 27<helpdocument version="1.0"> 28<meta> 29<topic id="textsbasicshared03100100xml" indexer="include" status="PUBLISH"> 30<title id="tit" xml-lang="en-US">CBool Function [Runtime]</title> 31<filename>/text/sbasic/shared/03100100.xhp</filename> 32</topic> 33<history> 34<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 35<lastedited date="2004-08-24T09:51:33">converted from old format - fpe</lastedited> 36</history> 37</meta> 38<body> 39<section id="cbool"> 40<bookmark xml-lang="en-US" branch="index" id="bm_id3150616"><bookmark_value>CBool function</bookmark_value> 41</bookmark> 42<paragraph role="heading" id="hd_id3150616" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03100100.xhp" name="CBool Function [Runtime]">CBool Function [Runtime]</link></paragraph> 43<paragraph role="paragraph" id="par_id3145136" xml-lang="en-US" l10n="U" oldref="2">Converts a string comparison or numeric comparison to a Boolean expression, or converts a single numeric expression to a Boolean expression.</paragraph> 44</section> 45<paragraph role="heading" id="hd_id3153345" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph> 46<paragraph role="paragraph" id="par_id3149514" xml-lang="en-US" l10n="U" oldref="4">CBool (Expression1 {= | <> | < | > | <= | >=} Expression2) or CBool (Number)</paragraph> 47<paragraph role="heading" id="hd_id3156152" xml-lang="en-US" level="2" l10n="U" oldref="5">Return value:</paragraph> 48<paragraph role="paragraph" id="par_id3155419" xml-lang="en-US" l10n="U" oldref="6">Bool</paragraph> 49<paragraph role="heading" id="hd_id3147530" xml-lang="en-US" level="2" l10n="U" oldref="7">Parameters:</paragraph> 50<paragraph role="paragraph" id="par_id3156344" xml-lang="en-US" l10n="U" oldref="8"> 51<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> 52<paragraph role="paragraph" id="par_id3149655" xml-lang="en-US" l10n="U" oldref="9"> 53<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> 54<paragraph role="paragraph" id="par_id3145171" xml-lang="en-US" l10n="U" oldref="10">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> 55<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 56<embed href="text/sbasic/shared/00000003.xhp#err5"/> 57<paragraph role="heading" id="hd_id3156212" xml-lang="en-US" level="2" l10n="U" oldref="11">Example:</paragraph> 58<paragraph role="paragraph" id="par_id3147288" xml-lang="en-US" l10n="U" oldref="12">Sub ExampleCBool</paragraph> 59<paragraph role="paragraph" id="par_id3153768" xml-lang="en-US" l10n="U" oldref="13">Dim sText As String</paragraph> 60<paragraph role="paragraph" id="par_id3155132" xml-lang="en-US" l10n="U" oldref="14">sText = InputBox("Please enter a short sentence:")</paragraph> 61<paragraph role="paragraph" id="par_id3155855" xml-lang="en-US" l10n="U" oldref="15">REM Proof if the word »and« appears in the sentence.</paragraph> 62<paragraph role="paragraph" id="par_id3146984" xml-lang="en-US" l10n="U" oldref="16">REM Instead of the command line</paragraph> 63<paragraph role="paragraph" id="par_id3148576" xml-lang="en-US" l10n="U" oldref="17">REM If Instr(Input, "and")<>0 Then...</paragraph> 64<paragraph role="paragraph" id="par_id3154014" xml-lang="en-US" l10n="U" oldref="18">REM the CBool function is applied as follows:</paragraph> 65<paragraph role="paragraph" id="par_id3155413" xml-lang="en-US" l10n="U" oldref="19">If CBool(Instr(sText, "and")) Then</paragraph> 66<paragraph role="paragraph" id="par_id3152940" xml-lang="en-US" l10n="U" oldref="20">MsgBox "The word »and« appears in the sentence you entered!"</paragraph> 67<paragraph role="paragraph" id="par_id3153954" xml-lang="en-US" l10n="U" oldref="21">EndIf</paragraph> 68<paragraph role="paragraph" id="par_id3152886" xml-lang="en-US" l10n="U" oldref="22">End Sub</paragraph> 69</body> 70</helpdocument> 71