OpenOffice.org BASIC Guide - OpenOffice.org wiki

More documents

Recommendations

Info

Events A single key action on a modification key, such as the Shift key or the Alt key does not create an independent event. Information about a pressed key is provided by the event object that OpenOffice.org Basic supplies to the procedure for event handling. It contains the following properties: KeyCode (short) code of the pressed key (default values in accordance with com.sun.star.awt.Key) KeyChar (String) character that is entered (taking the modification keys into consideration) The following example uses the KeyCode property to establish if the Enter key, the Tab key, or one of the other control keys has been pressed. If one of these keys has been pressed, the name of the key is returned, otherwise the character that was typed is returned: Sub KeyPressed(Event As Object) Dim Msg As String Select Case Event.KeyCode Case com.sun.star.awt.Key.RETURN Msg = "Return pressed" Case com.sun.star.awt.Key.TAB Msg = "Tab pressed" Case com.sun.star.awt.Key.DELETE Msg = "Delete pressed" Case com.sun.star.awt.Key.ESCAPE Msg = "Escape pressed" Case com.sun.star.awt.Key.DOWN Msg = "Down pressed" Case com.sun.star.awt.Key.UP Msg = "Up pressed" Case com.sun.star.awt.Key.LEFT Msg = "Left pressed" Case com.sun.star.awt.Key.RIGHT Msg = "Right pressed" Case Else Msg = "Character " & Event.KeyChar & " entered" End Select MsgBox Msg End Sub Information about other keyboard constants can be found in the API Reference under the com.sun.star.awt.Key group of constants. Focus Events Focus events indicate if a control element receives or loses focus. You can use these events to, for example, determine if a user has finished processing a control element so that you can update other elements of a dialog. The following focus events are available: When receiving focus element receives focus When losing focus element loses focus The Event objects for the focus events are structured as follows: FocusFlags (short) cause of focus change (default value in accordance with com.sun.star.awt.FocusChangeReason) NextFocus (Object) object that receives focus (only for the When losing focus event) 160 OpenOffice.org 3.2 BASIC Guide · March 2010
Temporary (Boolean) the focus is temporarily lost Control Element-Specific Events Events In addition to the preceding events, which are supported by all control elements, there are also some control element-specific events that are only defined for certain control elements. The most important of these events are: When Item Changed the value of a control element changes Item Status Changed the status of a control element changes Text modified the text of a control element changes When initiating an action that can be performed when the control element is triggered (for example, a button is pressed) When you work with events, note that some events, such as the When initiating event, can be initiated each time you click the mouse on some control elements (for example, on radio buttons). No action is performed to check if the status of the control element has actually changed. To avoid such “blind events”, save the old control element value in a global variable, and then check to see if the value has changed when an event is executing. The When initiating event is also noteworthy for the following reasons: This event is initiated by either a key-press or a mouse button. Thus, it provides a consistent interface for users who navigate by mouse or by keyboard. When the Repeat property of a command button is set to True, this event is the one which is repeatedly sent, as long as the triggering action (key down or mouse-button down) remains in effect. The properties for the Item Status Changed event are: Selected (long) currently selected entry Highlighted (long) currently highlighted entry ItemId (long) ID of entry Dialog Control Elements OpenOffice.org Basic recognizes a range of control elements which can be divided into the following groups: Entry fields Buttons Selection lists Other Text fields Standard buttons List boxes Scrollbars (horizontal and vertical) Date fields Checkboxes Combo-boxes Fields of groups Time fields Radio Buttons Tree Control Progress bars Numerical fields Dividing lines (horizontal and vertical) Currency fields Graphics Fields adopting any format File selection fields Chapter 11 · Dialogs 161
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 and 40:
Strings Formatting Strings The Form
Page 41 and 42:
Date and Time The Weekday function
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
Page 93 and 94:
Cell = Sheet.getCellByPosition(0, 0
Page 95 and 96:
StartColumn (long) first column in
Page 97 and 98:
You can apply all of the named prop
Page 99 and 100:
NumberFormatId = NumberFormats.addN
Page 101 and 102:
ShadowFormat (struct) The Structure
Page 103 and 104:
FooterBottomBorderDistance (long) d
Page 105 and 106: Definition of Elements to be Printe
Page 107 and 108: VARP variance based on the total po
Page 109 and 110: 8 C H A P T E R 8 8 Drawings and
Page 111 and 112: Doc = ThisComponent Page = Doc.Draw
Page 113 and 114: RectangleShape.Position = Point Rec
Page 115 and 116: The lines are dark gray (Color) and
Page 117 and 118: service. Dim Doc As Object Dim Page
Page 119 and 120: An Overview of Various Drawing Obje
Page 121 and 122: Page.add(LineShape) Polypolygon Sha
Page 123 and 124: AdjustBlue (Short) blue value as a
Page 125 and 126: Point.x = 1000 Point.y = 1000 Size.
Page 127 and 128: Pause (long) the amount of time tha
Page 129 and 130: Using Charts in Spreadsheets The pr
Page 131 and 132: The Structure of Charts com.sun.sta
Page 133 and 134: The Structure of Charts Min (Double
Page 135 and 136: The Structure of Charts HasZAxisGri
Page 137 and 138: The Structure of Charts The followi
Page 139 and 140: 10 C H A P T E R 1 0 10 Database
Page 141 and 142: User (String) user name Password (S
Page 143 and 144: Dim Statement As Object Dim ResultS
Page 145 and 146: FORWARD_ONLY ResultSet only permits
Page 147 and 148: 11 C H A P T E R 1 1 11 Dialogs
Page 149 and 150: Closing With the Close Button in th
Page 151 and 152: Multi-Page Dialogs Properties A dia
Page 153 and 154: Control element-specific events: Ev
Page 155: Buttons (short) X (long) Y (long) b
Page 159 and 160: Model.Label (String) label that is
Page 161 and 162: Model.HScroll (Boolean) the text ha
Page 163 and 164: 12 C H A P T E R 1 2 12 Forms In
Page 165 and 166: Accessing the View of Control Eleme
Page 167 and 168: Tag (String) Control Element Forms
Page 169 and 170: Enabled (Boolean) the control eleme
Page 171 and 172: LineCount (Short) number of lines o
show all

OpenOffice.org BASIC Guide - OpenOffice.org wiki

Create successful ePaper yourself

Delete template?

Save as template?