Object Categories
The system provides three categories of objects: user, graphics device interface (GDI), and kernel. The system uses user objects to support window management, GDI objects to support graphics, and kernel objects to support memory management, process execution, and interprocess communications (IPC). For information about creating and using a specific object, refer to the associated overview.
| User object | Overview |
|---|---|
| Accelerator table | Keyboard Accelerators |
| Caret | Carets |
| Cursor | Cursors |
| DDE conversation | Dynamic Data Exchange Management Library |
| Hook | Hooks |
| Icon | Icons |
| Menu | Menus |
| Window | Windows |
| Window position | Windows |
| GDI object | Overview |
|---|---|
| Bitmap | Bitmaps |
| Brush | Brushes |
| DC | Device Contexts |
| Enhanced metafile | Metafiles |
| Enhanced-metafile DC | Metafiles |
| Font | Fonts and Text |
| Memory DC | Device Contexts |
| Metafile | Metafiles |
| Metafile DC | Metafiles |
| Palette | Colors |
| Pen and extended pen | Pens |
| Region | Regions |
| Kernel object | Overview |
|---|---|
| Access token | Access Control |
| Change notification | Directory Change Notifications |
| Communications device | Communications |
| Console input | Character-Mode Applications |
| Console screen buffer | Character-Mode Applications |
| Desktop | Desktops |
| Event | Synchronization |
| Event log | Event Logging |
| File | Files and Clusters |
| File mapping | File Mapping |
| Heap | Memory Management |
| Job | Job Objects |
| Mailslot | Mailslots |
| Module | Dynamic-Link Libraries |
| Mutex | Synchronization |
| Pipe | Pipes |
| Process | Processes and Threads |
| Semaphore | Synchronization |
| Socket | Windows Sockets 2 |
| Thread | Processes and Threads |
| Timer | Synchronization |
| Timer queue | Synchronization |
| Timer-queue timer | Synchronization |
| Update resource | Resources |
| Window station | Window Stations |