Irwin/McGraw-Hill Copyright© 2000 by the McGraw-Hill Companies, Inc. PowerPoint® Presentation to accompany prepared by James T. Perry University of San Diego

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Ch5. Menus, Sub Procedures & Sub Functions  Menus and submenus  Windows common dialog boxes  Function procedures  Sub procedures  Creating Executable Files

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Menus  Caption: Holds menu "words"  Follow naming conventions: –mnu + –mnu + + –E.g., mnuFileExit, mnuEditClear or mnuFile  Submenu: menu within a menu

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Defining Menus  Define menus: Tools, Menu Editor –Caption –Name (mnuMenuxxCommand)  Sub menus defined by indenting command  Menu and submenu captions use & before keyboard access key

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Creating a Menu  Create a menu structure like this one: FileHelp Exit About 1.Type caption 2.Type name 3.Indent if necessary 4.Repeat as needed

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Coding for Menu Commands  Build commands first  Then, double click each command to bring up its Click event procedure  You can modify menu order or command order by invoking Menu Editor again  Checked property: contains check—toggles on and off  Enabled property: command available or not based on the Enabled property

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Standards for Windows Menus  Follow existing Windows standards File menu is leftmost menu in menu bar Help menu is rightmost menu in menu bar Use keyboard access keys; match them to existing ones Use keyboard shortcuts (Ctrl + P for print)

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Common Dialog Boxes  You can use existing Windows dialog boxes by inserting the common dialog control on your form  Common dialog box does: –Open, Font, Color, Save As, and Print  If it is not in your toolbox, then execute: –Project, Components, check the Microsoft Common Dialog Control 5.0

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Common Dialog Boxes (cont'd)  Only need on Common dialog box/form  Code determines which of the possible dialog boxes is displayed  Use prefix “dlg” for name of control  Display dialog box: dlgCommon.ShowColor dlgCommon.ShowFont

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill General Procedures  General procedures respond when specifically called by other procedures  They are not event driven  They are used to “package” a commonly used series of instructions  Invoke general procedures by calling them  Select Tools, Add Procedure to insert one

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Functions vs. Sub Procedures  Functions vary from sub procedures in one way: they return a value  One calls a general procedure by simply writing its name along with any arguments  Somewhere in the procedure, you must set the function’s name equal to the value to be returned

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Hands-on Programming Example

Copyright© 2000 by the McGraw-Hill Companies, Inc.Irwin/McGraw-Hill Creating Executable Files  You can convert your applications to executable (.EXE)  Execute File, Make...  You can select a special icon for your application, insert the company name, etc. via the Options button on the Make EXE File dialog box