The following example lists the most important syntax variants: Now consider a misleading (advanced) example, and a common error: The statement (Var = 8) evaluates to TRUE if Var is 8, and FALSE otherwise. There are four versions of the DoLoop. This is called direct formatting. An A stands for the decimal number 10, while the letter F represents the decimal number 15. Every chart has a background area. Base uses the HSQLDB database engine to create database documents. In previous versions of the Basic Programming Guide these instructions were used to obtain the current document: This correct code has a drawback: it does not work if the macro is started from the IDE because it then refers to the IDE, not the document. All the options specified here are based on the user interface from LibreOffice. If nothing is assigned, the function returns a zero value (number 0 for numerical values and a blank for strings). The mechanisms explained there are identical to those for forms. They define sets of methods for abstract tasks which can be applied to various problems. The properties are: Note: Note: To get the most out of this book, you should be familiar with other programming languages. All the properties of the SearchDescriptor described in the previous paragraph are also supported by ReplaceDescriptor. In the same way, the following example checks whether MyTime is between 12 and 14 hours. After the call for the ChangeValue function, variable A retains the value 10. VBA: A ResultSet containing the READ_ONLY and SCROLL_INSENSITIVE properties corresponds to a record set of the Snapshot type in ADO and DAO. Example declarations for single variables: Double variables can store any positive or negative floating point numbers between 1.79769313486232 x 10308 and 4.94065645841247 x 10-324. The Dialog Editor: Creates personal dialog windows and provides scope for the adding of control elements and event handlers. Alternatively, you can use the keyboard shortcut Ctrl + O within LibreOffice Draw and select the document you want to open. Example declarations of double variables: Currency variables differ from the other variable types by the way they handle values. A dialog editor is provided for creating dialogs, and this can be found in the LibreOffice Basic development environment. If the bitmap is already available in LibreOffice, you just need to specify its name in the FillBitMapName property and its display style (simple, tiled, or elongated) in the FillBitmapMode property (default values in accordance with com.sun.star.drawing.BitmapMode). Note: When working with the indexes, note that getCount returns the number of elements. The type declaration symbol is #. The number of additional, deleted and modified characters for these expressions can be defined individually. libreoffice basic programming guide pdf By July 27, 2021 OpenOffice Basic . The following program code shows how the Step value in event handlers of the Next and Prev buttons can be increased or reduced and changes the status of the buttons. Note: The Diagram object provides the properties Wall and Floor: The specified objects support the com.sun.star.chart.ChartArea service, which provides the usual fill and line properties (com.sun.star.drawing.FillProperties and com.sun.star.drawing.LineProperties services, refer to #Drawings and Presentations). This property provides the following options: The following example demonstrates the use of color gradients with the aid of the com.sun.star.awt.Gradient structure: This example creates a linear color gradient (Style = LINEAR). Care should be taken when you use the On Error Resume Next command as this dismisses all open error messages. The following is an example of a search and replace process: This example uses the first page of the document to create a ReplaceDescriptor and then applies this to all pages in a loop. The following example creates a rectangle and tiles the Sky bitmap that is available in LibreOffice to fill the area of the rectangle: You can adjust the transparency of any fill that you apply. There is also no limit to the number of drawing elements that you can add to a page. Depending on the system and configuration, various types of data are saved here. A table is usually accessed in LibreOffice through the ResultSet object. Note that this name must not begin with an underscore. If another error occurs, the system outputs a warning. The type of removal is defined by one of the following values from the com.sun.star.sheet.CellDeleteMode enumeration: The XRangeMovement interface provides two additional methods for moving (moveRange) or copying (copyRange) cell ranges. The compiler uses the qualifiers from the With as though they were written in front of the partly-qualified name. The createTextCursorByRange call then creates a Cursor, which is positioned at the anchor position of the bookmark. In many instances, it is the case that a text is to be searched for a particular term and the corresponding point needs to be edited. The insertNewByIndex method is obtained from the com.sun.star.drawing.XDrawPages interface. You can page through and search in the selected tables and queries, as well as change data records and insert new data records. The declaration. The following call also specifies the True parameter for the document object when requesting the Save method. Instead, you execute an LibreOffice Basic program inside LibreOffice. It passes through a complete document and formats the first word of every sentence in bold type. These in turn can be linked to LibreOffice Basic macros to considerably extend the usage range of LibreOffice Basic. The second section addresses more complex editing functions, such as grouping, rotating, and scaling objects. Some DOS-specific file and directory functions are no longer provided in LibreOffice, or their function is only limited. Note the last line in the example: Once the text is changed, the TextContent object must be assigned to the header again so that the change is effective. Extensive examples are provided to help you quickly develop your own LibreOffice Basic programs. The following example first moves the TextCursor ten characters to the left and then three characters to the right: A TextCursor can highlight a complete area. A Boolean value is saved internally as a two-byte integer value, where 0 corresponds to the False and any other value to True. Functions and procedures can only be called up if all the necessary parameters are passed during the call. The number of elements in an array is not affected if you use Option Base 1, only the start index changes. In many situations, it is useful to group several individual drawing objects together so that they behave as a single large object. You can use these properties to trigger an event within an event handler. Here are a few examples: The following example shows how all empty lines in a text document can be removed with the help of the regular expression ^$: So far, this chapter has only dealt with text paragraphs and their portions. Throughout this document, the LibreOffice installation directory is represented in syntax as install-dir. Whereas the Document.Tables.Add method takes on the task of creating and setting the table in VBA, this is created in LibreOffice Basic in accordance with the previous example using createInstance, initialized, and inserted in the document through insertTextContent. The following examples show you how to access a sheet either through its number or its name. Jumping directly to a general program procedure from a macro can result in unclear code. . LibreOffice Basic ensures that variable B is converted to a string during assignment to variable A. Each cell is defined by its X and Y-position with respect to the top left cell which has the position (0,0). A similarity search is used so that not only the word turnover, but also the plural form "turnovers" and declinations such as "turnover's" are found. The example defines a procedure called Test that contains code that can be accessed from any point in the program. When variable I equals 10, the loop stops. Methods can be understood as functions that relate directly to an object and through which this object is called. It provides the functions for the frame object of LibreOffice, under which all document windows are classified. Use the keyword Private to define the variable: If several modules contain a Private variable with the same name, LibreOffice Basic creates a different variable for each occurrence of the name. LibreOffice Basic Macro Tutorials StarOffice (Basic) programmer's Tutorial, May 2000 LibreOffice API LibreOffice scripts make use of the LibreOffice API , documentation is available at: api.libreoffice.org OpenOffice.org 3.1 Developer's Guide Developer's Guide new home in LibreOffice wiki ScriptForge Library LibreOffice Programming The location of individual cells in a cell range can be determined using the getCellByPosition method, where the coordinates of the top left cell in the cell range is (0, 0). When saving date values, LibreOffice Basic uses an internal format that permits comparisons and mathematical operations on date and time values. Strictly speaking, there are no table columns in LibreOffice. To do this, the function expects a Format expression to be specified, which is then used as the template for formatting the numbers. Visit Andrew Pitonyak's web page to get the latest PDF and ODT files of his book Forms are created using the Form Controls and the Form Design Toolbar directly within the document. The cursor then inserts the text required at this point. It could be for example, A247. When first requested, a string containing the path of the directories to be searched must be assigned to Dir as its first parameter. In this case, the member PopupTrigger of the event passed to your macro function will be TRUE. With indirect formatting, the user assigns a pre-defined template to the relevant text portion. LibreOffice Basic then interprets the following line as a regular instruction again. It only allows iteration to be applied forward, and for values to be interrogated. The simplest scenario is for the button to trigger a When Initiating event when it is clicked by a user. If a ResultSet is a SCROLL_INSENSITIVE or SCROLL_SENSITIVE type, it supports a whole range of methods for navigation in the stock of data. This can be compared with highlighting a point in the text using the mouse. The control element can be reached using Event.Source and its model using Event.Source.Model. ThisComponent returns the currently active document. In addition to these "real" properties, there are also properties in LibreOffice Basic which consist of two methods at the UNO level. Text frame objects provide a range of properties with which the position and behavior of the frame can be influenced. The basic structure of the example is oriented towards the examples for running though the paragraph portions of a text already discussed previously. To simplify access to the tables, LibreOffice, however, provides some methods which operate using columns. Base Guides | LibreOffice Documentation - LibreOffice User Guides en / English documentation / Base Guides Base Guides Download PDF Buy a printed copy Guide Source Files Read in your browser Download PDF Buy a printed copy Download PDF Buy a printed copy Download PDF For detailed information check out our wiki page. To compare the differences between different SQL dialects, the SDBC components from LibreOffice have their own SQL parser. If you want to delete directory (including its files) use the RmDir function. The first central line creates the Doc document variable, which references the current spreadsheet document (Doc line = StarDesktop.CurrentComponent). VBA: In terms of their function, the LibreOffice Basic insertCell, removeRange, and copyRange methods are comparable with the VBA Range.Insert, Range.Delete ,and Range.Copy methods. The previous examples are based on data fields of a specified dimension. 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). XIndexContainer provides methods for inserting and removing elements. The getByIndex method returns a row object, which supports the com.sun.star.text.TextTableRow service. The following example inserts a paragraph after the 20th character of a text: The False parameter in the call of the insertControlCharacter method ensures that the area currently highlighted by the TextCursor remains after the insert operation. Note: Do not specify the constant type in the declaration: it will be silently ignored. Dialogs such as this one are described as modal because they do not permit any other program action until they are closed. LibreOffice recognizes five different axes that can be used in a chart. 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