1. Visual Basic Project 1 IDS 306 Spring 1999 V. Murphy

2. menu bar window title title bar menu name minimize button close button maximize button menu

3. User Interfaces & Applications User Interface -- way in which you give instructions to a computer and receive feedback Graphical User Interface (GUI) -- allows use of both text and graphical images Application software -- computer programs that perform a specific function

4. Control Creation Edition available for download from –http://msdn.microsoft.com/vbasic/downloads/ cce/default.asp –http://www.download.com can not make.exe files –Stand-alone application -- a.k.a. an EXE, runs independently of the VB system should contain all the features you will need for this class

5. Development Environment Integrated Development Environment (IDE) Single document interface (SDI) -- independent windows on the desktop Multiple document interface (MDI) -- windows within windows; contained within single parent window

6. Design Time vs. Run Time Design time -- time during which you build an application Run time -- time during which you use an application for its intended purpose Title bar will say [design] during design time and [run] during run time

7. Projects and Forms Project (.vbp) –starts with a form –may contain several forms Form (.frm) –becomes the application window during run time

8. 3 Steps in Creating Applications 1. Create the Interface 2. Set the Properties 3. Write the Code

9. Toolbox and Properties List object box property list property values

10. Writing Code Events -- messages sent to an object when the application runs –can be initiated by user or by application –trigger procedures Procedures -- groups of code statements Code Statements -- instructions to computer, written at design time, execute at run time Event procedures in VB written in blocks of code called subroutines

11. Function, Methods & Comments Function -- code that transforms one or more values into a new value –Val function -- takes whatever value is given and converts it to a number Methods -- code statements that can be applied to an object to change its attributes or behavior –SetFocus method -- causes focus to be changed to a specific control on a form Comment -- explanatory text within a procedure –begins with an apostrophe (‘) or keyword Rem

12. Code Window

13. Printing

14. Help!