PMGuide - Menus

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Presentation Manager Programming Guide and Reference

How to Use this Book Device Functions Direct Manipulation Functions Dynamic Data Formatting Functions Hooks and Procedures Profile Functions Spooler Functions Window Functions Message Processing Data Types Errors Atom Tables Button Controls Clipboards Combination Box Container Controls Control Windows Cursors Dialog Windows Direct Manipulation Drawing in Windows Dynamic Data Exchange Entry-Field Controls File Dialog Controls Font Dialog Controls Frame Windows Hooks Initialization Files Keyboard Accelerators List-Box Controls Menus Messages and Message Queues Multiple-Line Entry Field Controls Mouse and Keyboard Input Mouse Pointers and Icons Notebook Controls Painting and Drawing Presentation Parameters Resource Files Scroll-Bar Controls Slider Controls Spin Button Controls Static Controls Title-Bar Controls Value Set Controls Windows Window Classes Window Procedures Window Timers Appendices Notices Glossary

About Menus

A menu always is owned by another window, usually a frame window. When a user makes a choice from a menu, the menu posts a message containing the unique identifier for the menu item to its owner by way of the owner window's window procedure.

An application typically defines its menus using Resource Compiler, and then associates the menus with a frame window when the frame window is created. Applications also can create menus by filling in menu-template data structures and creating windows with the WC_MENU class. Either way, applications can add, delete, or change menu items dynamically by issuing messages to menu windows.