Workplace Object Class Hierarchy

The following figure lists the predefined Workplace object classes in a hierarchical order. Each branch in the tree represents an immediate descendant (subclass) of a Workplace object class. The predefined SOM object class, SOMObject, is the root class for all SOM object classes, including all Workplace object classes. 

    CLASS NAME                                    CLASS DEFINITION FILE

SOMObject                                              somobj.idl
  ├───SOMClass                                         somcls.idl
  ├───SOMClassMgr                                      somcm.idl
  │    └─WPClassManager                                wpclsmgr.idl
  └───WPObject                                         wpobject.idl
        ┌─────WPAbstract                               wpabs.idl
        │     ├── WPClock                              wpclkm.idl
        │     ├── WPCountry                            wpctry.idl
        │     ├── WPDisk                               wpdisk.idl
        │     ├── WPLaunchPad                          wplnchpd.idl
        │     ├── WPKeyboard                           wpkeybd.idl
        │     ├── WPMouse                              wpmouse.idl
        │     ├── WPPalette                            wppalet.idl
        │     │     ├── WPColorPalette                 wpclrpal.idl
        │     │     ├── WPFontPalette                  wpfntpal.idl
        │     │     └── WPSchemePalette                wpscheme.idl
        │     ├── WPPower                              wppower.idl
        │     ├── WPPrinter                            wpprint.idl
        │     │     └── WPRPrinter                     wprprint.idl
        │     ├── WPProgram                            wppgm.idl
        │     ├── WPShadow                             wpshadow.idl
        │     │     └── WPNetLink                      wpnetlnk.idl
        │     ├── WPShredder                           wpshred.idl
        │     ├── WPSound                              wpsound.idl
        │     ├── WPSpecialNeeds                       wpspneed.idl
        │     ├── WPSpool                              wpspool.idl
        │     ├── WPSystem                             wpsystem.idl
        │     └── WPWinConfig                          wincfg.idl
        ├── WPFileSystem                               wpfsys.idl
        │     ├── WPDataFile                           wpdataf.idl
        │     │     ├── WPHtml                         wphtml.idl
        │     │     ├── WPIcon                         wpicon.idl
        │     │     ├── WPImageFile                    wpimage.idl
        │     │     │      └── WPBitmap                wpbitmap.idl
        │     │     ├── WPMet                          wpmet.idl
        │     │     ├── WPPif                          wppif.idl
        │     │     ├── WPPointer                      wpptr.idl
        │     │     ├── WPProgramFile                  wppgmf.idl
        │     │     │       └── WPCommandFile          wpcmdf.idl
        │     │     ├── WPUrl                          wpurl.idl
        │     ├── WPFolder                             wpfolder.idl
        │     │     ├── WPDesktop                      wpdesk.idl
        │     │     ├── WPDrives                       wpdrives.idl
        │     │     ├── WPHost                         wphost.idl
        │     │     ├── WPHwManager                    wphwmgr.idl
        │     │     ├── WPMinWinViewer                 wpmwv.idl
        │     │     ├── WPNetgrp                       wpnetgrp.idl
        │     │     ├── WPNetwork                      wpnetwrk.idl
        │     │     ├── WPRootFolder                   wprootf.idl
        │     │     ├── WPServer                       wpserver.idl
        │     │     ├── WPSharedDir                    wpshdir.idl
        │     │     ├── WPStartup                      wpstart.idl
        │     │     ├── WPTemplates                    wptemps.idl
        │     │     └── WPUrlFolder                    wpurlfdr.idl
        └── WPTransient                                wptrans.idl
              ┌── WPJob                                wpjob.idl
              ├── WPDevice                             wpdevice.idl
              │     ├── WPDevAudio                     wpaudio.idl
              │     ├── WPDevBus                       wpbus.idl
              │     ├── WPDevCDRom                     wpcdrom.idl
              │     ├── WPDevCPU                       wpcpu.idl
              │     ├── WPDevDiskette                  wpdskett.idl
              │     ├── WPDevDisplay                   wpdisply.idl
              │     ├── WPDevHarddrive                 wphrddrv.idl
              │     ├── WPDevKeyboard                  wpkeybdd.idl
              │     ├── WPDevMemory                    wpmem.idl
              │     ├── WPDevMouse                     wpmoused.idl
              │     ├── WPDevParallel                  wpparal.idl
              │     ├── WPDevPeriph                    wpperiph.idl
              │     ├── WPDevSerial                    wpserial.idl
              │     ├── WPDevTape                      wptape.idl
              │     └── WPDevTimer                     wptimer.idl
              ├── WPPort                               wpport.idl
              ├── WPPdr                                wppdr.idl
              └── WPQdr                                wpqdr.idl

Instances of some Workplace object classes cannot be created as a Workplace object. These classes are provided as base classes which provide support for descendant classes that can have instances created. Other classes are SOM classes and are described in better detail in the System Object Model Guide and Reference.

These classes include: