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MyDate = "24.1.2002" Date and Time This assignment can function properly because OpenOffice.org Basic automatically converts the date value defined as a string into a date variable. This type of assignment, however, can cause errors, date and time values are defined and displayed differently in different countries. Since OpenOffice.org Basic uses the country-specific settings of the operating system when converting a string into a date value, the expression shown previously only functions correctly if the country-specific settings match the string expression. To avoid this problem, the DateSerial function should be used to assign a fixed value to a date variable: Dim MyVar As Date MyDate = DateSerial (2001, 1, 24) The function parameter must be in the sequence: year, month, day. The function ensures that the variable is actually assigned the correct value regardless of the country-specific settings The TimeSerial function formats time details in the same way that the DateSerial function formats dates: Dim MyVar As Date MyDate = TimeSerial(11, 23, 45) Their parameters should be specified in the sequence: hours, minutes, seconds. Extracting Date and Time Details The following functions form the counterpart to the DateSerial and TimeSerial functions: Day(MyDate) returns the day of the month from MyDate. Month(MyDate) returns the month from MyDate. Year(MyDate) returns the year from MyDate. Weekday(MyDate) returns the number of the weekday from MyDate. Hour(MyTime) returns the hours from MyTime. Minute(MyTime) returns the minutes from MyTime. Second(MyTime) returns the seconds from MyTime. These functions extract the date or time sections from a specified Date variable. The following example checks whether the date saved in MyDate is in the year 2003. Dim MyDate As Date ' ... Initialization of MyDate If Year(MyDate) = 2003 Then ' ... Specified date is in the year 2003 End If In the same way, the following example checks whether MyTime is between 12 and 14 hours. Dim MyTime As Date ' ... Initialization of MyTime If Hour(MyTime) >= 12 And Hour(MyTime) < 14 Then ' ... Specified time is between 12 and 14 hours End If Chapter 3 · Runtime Library 41
Date and Time The Weekday function returns the number of the weekday for the transferred date: Dim MyDate As Date Dim MyWeekday As String ' ... initialize MyDate Select Case WeekDay(MyDate) case 1 MyWeekday = "Sunday" case 2 MyWeekday = "Monday" case 3 MyWeekday = "Tuesday" case 4 MyWeekday = "Wednesday" case 5 MyWeekday = "Thursday" case 6 MyWeekday = "Friday" case 7 MyWeekday = "Saturday" End Select Note – Sunday is considered the first day of the week. Retrieving System Date and Time The following functions are available in OpenOffice.org Basic to retrieve the system time and system date: Date Time Now returns the present date as a string. The format depends on localization settings. returns the present time as a string. returns the present point in time (date and time) as a combined value of type Date. Files and Directories Working with files is one of the basic tasks of an application. The OpenOffice.org API provides you with a whole range of objects with which you can create, open and modify Office documents. These are presented in detail in the Introduction to the OpenOffice.org API. Regardless of this, in some instances you will have to directly access the file system, search through directories or edit text files. The runtime library from OpenOffice.org Basic provides several fundamental functions for these tasks. Note – Some DOS-specific file and directory functions are no longer provided in OpenOffice.org, or their function is only limited. For example, support for the ChDir, ChDrive and CurDir functions is not provided. Some DOS-specific properties are no longer used in functions that expect file properties as parameters (for example, to differentiate from concealed files and system files). This change became necessary to ensure the greatest possible level of platform independence for OpenOffice.org. Administering Files Compatibility Mode The CompatibilityMode statement and function provide greater compatibility with VBA, by changing the 42 OpenOffice.org 3.2 BASIC Guide · March 2010
Page 1 and 2: OpenOffice.org 3.2 BASIC Guide
Page 3 and 4: 3 1 2 3 4 Contents Copyright.......
Page 5 and 6: Preface This guide provides an intr
Page 7 and 8: About OpenOffice.org Basic and allo
Page 9 and 10: Overview of a Basic Program In addi
Page 11 and 12: Working With Variables example, in
Page 13 and 14: Numbers with long integer variables
Page 15 and 16: Numbers return incorrect values. Th
Page 17 and 18: Arrays Dim MyInteger(3) creates 4 i
Page 19 and 20: Scope and Life Span of Variables Sc
Page 21 and 22: Constants Const A = 10 You can also
Page 23 and 24: Branching B = 0 End If In this exam
Page 25 and 26: Loops use an explicit counter like
Page 27 and 28: Procedures and Functions ' ... here
Page 29 and 30: Procedures and Functions The exampl
Page 31 and 32: Error Handling The following code i
Page 33 and 34: Other Instructions End Sub & "Text:
Page 35 and 36: Conversion Functions calculates the
Page 37 and 38: Conversion Functions IsBoolean = Fa
Page 39: Strings Formatting Strings The Form
Page 43 and 44: Files and Directories Note - VBA :
Page 45 and 46: Files and Directories The FreeFile
Page 47 and 48: Message and Input Boxes Display of
Page 49 and 50: Other Functions specifies the same
Page 51 and 52: Universal Network Objects (UNO) com
Page 53 and 54: Tools for Working with UNO The foll
Page 55 and 56: Overview of Central Interfaces basi
Page 57 and 58: 5 C H A P T E R 5 5 Working with
Page 59 and 60: XML File Format The StarDesktop Ope
Page 61 and 62: The StarDesktop The FileProperties
Page 63 and 64: The options of the print method The
Page 65 and 66: Doc = ThisComponent StyleFamilies =
Page 67 and 68: 6 C H A P T E R 6 6 Text Documen
Page 69 and 70: described in Search and Replace. Th
Page 71 and 72: Paragraph Properties The Structure
Page 73 and 74: If TextElement.supportsService("com
Page 75 and 76: isEndOfSentence () returns True if
Page 77 and 78: Doc.Text.insertControlCharacter(Cur
Page 79 and 80: Dim Replace As Object Dim BritishWo
Page 81 and 82: More Than Just Text Note - Text tab
Page 83 and 84: Doc.Text.insertTextContent(Cursor,
Page 85 and 86: frame objects are set to the starti
Page 87 and 88: The following example shows how the
Page 89 and 90: 7 C H A P T E R 7 7 Spreadsheet
Page 91 and 92:
The same interface provides methods
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Cell = Sheet.getCellByPosition(0, 0
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StartColumn (long) first column in
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You can apply all of the named prop
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NumberFormatId = NumberFormats.addN
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ShadowFormat (struct) The Structure
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FooterBottomBorderDistance (long) d
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Definition of Elements to be Printe
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VARP variance based on the total po
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8 C H A P T E R 8 8 Drawings and
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Doc = ThisComponent Page = Doc.Draw
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RectangleShape.Position = Point Rec
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The lines are dark gray (Color) and
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service. Dim Doc As Object Dim Page
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An Overview of Various Drawing Obje
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Page.add(LineShape) Polypolygon Sha
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AdjustBlue (Short) blue value as a
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Point.x = 1000 Point.y = 1000 Size.
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Pause (long) the amount of time tha
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Using Charts in Spreadsheets The pr
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The Structure of Charts com.sun.sta
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The Structure of Charts Min (Double
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The Structure of Charts HasZAxisGri
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The Structure of Charts The followi
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10 C H A P T E R 1 0 10 Database
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User (String) user name Password (S
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Dim Statement As Object Dim ResultS
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FORWARD_ONLY ResultSet only permits
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11 C H A P T E R 1 1 11 Dialogs
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Closing With the Close Button in th
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Multi-Page Dialogs Properties A dia
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Control element-specific events: Ev
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Buttons (short) X (long) Y (long) b
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Temporary (Boolean) the focus is te
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Model.Label (String) label that is
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Model.HScroll (Boolean) the text ha
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12 C H A P T E R 1 2 12 Forms In
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Accessing the View of Control Eleme
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Tag (String) Control Element Forms
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Enabled (Boolean) the control eleme
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LineCount (Short) number of lines o
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