Two chart walls usually exist for 3D charts: one behind the plotted data and one as the left-hand or right-hand demarcation. storeAsURL provides the following options: The following example shows how the Overwrite option can be used in conjunction with storeAsURL: The example then saves Doc under the specified file name if a file already exists under the name. The structure of a chart, and therefore the list of services and interfaces supported by it, depends on the chart type. org BASIC Programming Guide This guide provides an introduction to programming with OpenOffice.org Basic. It marks a certain point within a text document and can be navigated in various directions through the use of commands. The same also applies to the maximum number of elements possible per dimension. This includes the distance of the paragraph from the edge of the page as well as line spacing. The forms created in this way provide all the functions of a full database front end without requiring independent programming work. Only at run-time can you find out which properties or methods are available for an object. VBA: In VBA, the formatting properties of an object are usually spread over a range of sub-objects (for example, Range.Font, Range.Borders, Range.Shading, Range.ParagraphFormat). Several independent lists containing corner points can therefore be specified and combined to form a complete object. The following example demonstrates the use of ReplaceDescriptors for a search within a LibreOffice document. check the "Macro" chapters in LibreOffice and Calc guides (1.1, ch. However, whether the corresponding settings are based on template or direct formatting in the text is still unclear. The False parameter in the previous function call specifies whether the area passed over with the cursor movement is highlighted. To use bitmap projection as a fill, you must set the FillStyle property to BITMAP. The True value of the IsDate property results in only the date and not time being displayed. WaitUntil takes a parameter of type Date, with a combined date and time value. VBA: The VBA Click and Doubleclick events are not available in LibreOffice Basic. These are: The following example shows how a query object can be created in a program-controlled manner and can be assigned to a data source. (In English, at least, they must be followed by a space, tab, or return for this to work.). When working with documents, two services are used most frequently: The com.sun.star.frame.Desktop service is created automatically when LibreOffice is started. Note: Whereas the position of hard line breaks in the source code of Java, C++, or Delphi programs is irrelevant, each line in a Basic program forms a self-contained unit. This change became necessary to ensure the greatest possible level of platform independence for LibreOffice. To avoid other errors resulting from implicit type conversions, LibreOffice Basic offers a range of conversion functions, which you can use to define when the data type of an operation should be converted: You can use these conversion functions to define how LibreOffice Basic should perform these type conversion operations: During the first addition in the example, LibreOffice Basic first adds the integer variables and then converts the result into a chain of characters. The 0 to 127 ASCII codes correspond to the alphabet and to common symbols (such as periods, parentheses, and commas), as well as some special screen and printer control codes. The following example inserts text in a rectangle and formats the font com.sun.star.style.CharacterProperties service. first moves ten characters to the right without highlighting, and then moves back three characters and highlights this. This uses the query window to check the SQL commands typed and corrects simple syntax errors, such as those associated with uppercase and lowercase characters. LibreOffice Basic returns the name of the first directory entry found. The top left cell is usually called A1 and the bottom right row is usually called Xn, where X stands for the letters of the top column and n for the numbers of the last row. The functionality can, however, be imitated by using the IsBoolean function: The IsBoolean function defines an internal Dummy help variable of the Boolean type and tries to assign this to the transferred value. The number of elements in an array is not affected if you use Option Base 1, only the start index changes. The following example shows how all text fields of a text document can be traversed in a loop and checked for their relevant type. You can also use the following style to declare an integer type variable: The Dim instruction can record several variable declarations: If you want to assign the variables to a permanent type, you must make separate assignments for each variable: If you do not declare the type for a variable, LibreOffice Basic assigns the variable a variant type. LibreOffice recognizes five different axes that can be used in a chart. You can navigate through the control elements in any dialog by pressing the Tab key. The structure is further complicated by tables. The StyleFamilies are accessed by means of the document object: The example uses the StyleFamilies property of a spreadsheet document to establish a list containing all available cell styles. Information about creating, opening, and saving drawings can be found in #Working With Documents. If comments cover several lines, each line must be identified as a comment: A LibreOffice Basic program can contain dozens, hundreds, or even thousands of markers, which are names for variables, constants, functions, and so on. It calls a text document, which contains a StyleFamilies object and uses this to in turn make the paragraph templates (ParagraphStyles) of the document available. For example: The DoLoop is not linked to a fixed number of passes. For more information about the LibreOffice API and the Software Development Kit, visit https://api.libreoffice.org. This property receives a PropertyValue data field with the following settings: The following example shows how a printer can be changed and the paper size set with the help of the Printer property. The headers and footers of a document form part of the page properties and are defined using the com.sun.star.style.PageProperties service. The origin of the line is specified in the Location property, whereas the coordinates listed in the Size property specify the end point of the line. A recursive procedure or function is one that has the ability to call itself until it detects that some base condition has been satisfied. In the same way, the following example checks whether MyTime is between 12 and 14 hours. The preceding Filename and Title properties are of the string type. They may essentially consist of standard text, but can be placed at any position on a page and are not included in the text flow. In addition to the drawing functions that are provided by the Presentation property, the presentation document has a presentation object that provides access to the main properties and control mechanisms for presentations. Every chart has a background area. The getByIndex method returns a row object, which supports the com.sun.star.text.TextTableRow service. Note: The entire LibreOffice API is based on these interfaces, which are described in more detail in the following chapters of this document. The LoadLibrary method performs this task. The following example shows how a text file is opened, written, and closed: Text files are read in the same way that they are written. These are two very different things. There are no practical limits on the indexes or on the number of elements in an array, so long as there is enough memory: Note: The following example shows how all element names of a spreadsheet can thereby be determined and displayed in a loop: The hasByName method of the XNameAccess interface reveals whether a subordinate object with a particular name exists within the basic object. Text fields are TextContent objects because they provide additional logic extending beyond pure text. The example is shown as in-line code, for clarity; in practice, the search would be inside a function, called with the name as a string parameter, and include error processing. A default value which can be added within the input area. Before you can create the dialog, you must ensure that the library it uses (in this example, the Standard library) is loaded. If there is another line inwards, it marks the transition to a filled area. To make the definition available to other modules, add the Public keyword. If you want to keep the original values, use the Preserve command: When you use Preserve, ensure that the number of dimensions and the type of variables remain the same. RectangleShape.CharWeight = com.sun.star.awt.FontWeight.BOLD If a style in the template has been changed, and you open a document created with that template, you will see a message asking whether to update the styles in the document. All other characters are inserted as escape coding in the URLs. The following functions are available in LibreOffice Basic to retrieve the system time and system date: Working with files is one of the basic tasks of an application. This chapter provides a background on the API. If the Dir function finds no more entries, it returns an empty string. Functions and procedures can receive one or more parameters. A variation of the If statement is the If/Else clause: In this example, the variable B is assigned the value of 2 when A is greater than 3, otherwise B is assigned the value of 0. The following example moves the B2:C3 range so that the range starts at position A6: In addition to the CellRangeAdress structure, the moveRange method expects a com.sun.star.table.CellAddress structure to define the origin of the move's target region. You can access the individual sheets of a spreadsheet document through the Sheets list. This call is only available provided that the data has not be re-written into the database using updateRow(). The loadComponentFromURL function introduced in the previous section returns a document object. Each placeholder within the template ensures that this item is formatted correspondingly in the output value. Note - VBA : Compatibility between OpenOffice.org Basic and VBA relates to the OpenOffice.org Basic language as well as the runtime library. It is called a ReplaceDescriptor and supports the com.sun.star.util.ReplaceDescriptor service. The options for accessing text tables are described in the following section. A spreadsheet document provides properties and methods for formatting cells and pages. This reflects the content of a table or the result of a SQL-SELECT command. Regardless of this, the original methods are also available (in our example, getPosition and setPosition). The following call can therefore be used to provide a file with read-only status: The date and time of the last amendment to a file are provided by the FileDateTime function. 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