Visual Basic for Applications
|
|
- For the emulator frequently nicknamed VBA, see VisualBoyAdvance.
Visual Basic for Applications (VBA) is an implementation of Microsoft's Visual Basic which is built into all Microsoft Office applications, some other Microsoft applications such as Visio and is at least partially implemented in some other applications such as AutoCAD and WordPerfect. It supersedes and expands on the capabilities of earlier application-specific macro programming languages such as Word's WordBasic, and can be used to control almost all aspects of the host application, including manipulating user interface features such as menus and toolbars and working with custom user forms or dialog boxes.
As its name suggests, VBA is closely related to Visual Basic, but can normally only run code from within a host application rather than as a standalone application. It can however be used to control one application from another (for example automatically creating a Word report from Excel data).
VBA is functionally rich and extremely flexible but it does have some important limitations, including limited support for callback functions.
Literature
- Andreas Janka, VBA mit Word, Galileo Press, Bonn 2004, 965 Seiten, ISBN 3898424693 147 pages extract (2,55 MB) as PDF (http://www.galileocomputing.de/download/dateien/633/galileocomputing_vba_word.pdf) from the book VBA mit Word (in German).
Examples
It is useful for automating database tasks such as transversing a database:
Sub DatabaseLoop
dim db as database
dim rs1 as recordset
set db = currentdb
set rs1 = db.openrecordset "select * from main"
with rs1
.movefirst
do while .EOF not true
msgbox !fieldname
.movenext
loop
end with
End Sub
External Links
- VBA Home on Microsoft (http://msdn.microsoft.com/isv/technology/vba/default.aspx)de:Visual Basic for Applications
es:VBA fr:Visual Basic for Applications it:VBA ja:Visual Basic for Applications pl:Visual Basic for Applications pt:Visual Basic for Applications sv:VBA zh:VBA