“Graphicsinclude text as well as pictures. To draw text, QuickDraw calls the FontManager, which does the background work necessary to make a variety ofcharacter fonts available in various sizes and styles. Unless your applicationincludes a font menu, you need to know only a minimal amount about the FontManager.” —Inside Macintosh, Volume I, page I-11b4b
“Anapplication decides what to do from moment to moment by examining input fromthe user in the form of mouse and keyboard actions. It learns of such actionsby repeatedly calling the Toolbox Event Manager (which in turn callsanother, lower-level Event Manager in the Operating System). The Toolbox EventManager also reports occurences within the application that may require aresponse, such as when a window that was overlapped becomes exposed and needsto be redrawn.” —Inside Macintosh, Volume I, page I-11
“Allinformation presented by a standard Macintosh application appears in windows.[NOTE: information also can appear in the menu bar and can be audio.] To createwindows, activate them, move them, resize them, or close them, you’ll call the WindowManager It keeps track of overlapping windows, so you can manipulatewindows without concern for how they overlap. For example, the Window Managertells the Toolbox Event Manager when to inform your application that a windowhas to be redrawn. Also, when the user presses the mouse button, you call theWindow Manager to learn which part of which window it was pressed in, orwhether it was pressed in the menu bar or a desk accessory.” —InsideMacintosh, Volume I, page I-11
“Anywindow may contain controls, such as buttons, check boxes, and scroll bars. Youcan create and manipulate controls with the Control Manager. When youlearn from the Window Manager that the user pressed the mouse button inside awindow containing controls, you call the Control Manager to find out whichcontrol it was pressed in, if any.” —Inside Macintosh, Volume I, pageI-11
“Acommon place for the user to press the mouse button is, of course, in the menubar. You set up menus in the menu bar by calling the Menu Manager. Whenthe user gives a commadn, either from a menu with the mouse or from theleyboard with the Command key, you call the Menu Manager to find out whichcommand was given.” —Inside Macintosh, Volume I, page I-12
“Toaccept text typed by the user and allow the standard editing capabilities,including cutting and pasting text within a document via the Clipboard, yourapplication should call TextEdit. TextEdit also handles basic formattingsych as word wraparound and justification. You can use it just to display textif you like.” —Inside Macintosh, Volume I, page I-12
“Whenan application needs more information from the user about a command, itpresents a dialog box. In case of errors or potentially dangerous situations,it alerts the user with a box containing a message or with sound from theMacintosh’s speakers (or both). To create and present dialogs and alerts, andfind out the user’s responses to them, you call the Dialog Manager.” —InsideMacintosh, Volume I, page I-12
“EveryMacintosh application should support the use of desk accessories. The useropens desk accessories through the Apple menu, which you set up by calling theMenu Manager. When you learn that the user has pressed the mouse button in adesk accessory, you pass that information on to the accessory by calling the DeskManager. The Desk Manager also includes routines that you must call toensure that desk accessories work properly.” —Inside Macintosh, VolumeI, page I-11
“Youcan use TextEdit to implement the standard text editing capability of cuttingand pasting via the Clipboard in your application. To allow the use of theClipboard for cutting and pasting text or graphics between your application andanother application or a desk accessory, you need to call the Scrap Manager.”—Inside Macintosh, Volume I, page I-12