| Object | Description |
|---|---|
| ActiveXContainer | represents the application hosting a Dyalog APL ActiveXControl |
| ActiveXControl | implements an ActiveX control written in Dyalog APL |
| Animation | plays simple AVIs |
| Bitmap | can be used to fill an area, or as a background pattern |
| BrowseBox | allows the user to browse for a folder or other resource |
| Button | used to perform a task or select an option |
| ButtonEdit | single-line input field with custom button |
| Calendar | displays a month calendar control |
| Circle | draws circles, arcs and pies |
| Clipboard | provides access to the Windows clipboard |
| ColorButton | allows the user to select a colour |
| Combo | combines text entry field with list of choices |
| ComboEx | an extended version of the Combo object that provides additional features including item images |
| CoolBand | represents a band in a CoolBar |
| CoolBar | acts as a container for CoolBand objects |
| Cursor | creates user-defined cursor |
| DateTimePicker | an editable date/time field with an optional drop-down Calendar |
| Edit | single or multi-line edit box for entering data |
| Ellipse | draws ellipses, elliptical arcs and pies |
| FileBox | standard File Selection dialog box |
| Font | a font resource |
| Form | window that acts as a container for other objects |
| Grid | spreadsheet object for editing data |
| Group | used to group a related set of controls together visually, and to impose "radio-button" behaviour |
| HTMLRenderer | displays HTML content |
| Icon | can be displayed, or used when a Form is minimized |
| Image | graphical object for displaying bitmaps and icons |
| ImageList | specifies a collection of bitmaps or icons for a ListView or TreeView |
| Label | fixed text that the user cannot change |
| List | list of items from which the user can choose |
| ListView | collection of items from which the user can choose |
| Locator | moving line, rectangle or ellipse for graphics input |
| Marker | draws marker at a series of points |
| MDIClient | provides Multiple Document Interface (MDI) behaviour |
| Menu | displays a pulldown or pop-up menu |
| MenuBar | displays list of pulldown menus across top of Form |
| MenuItem | component of a Menu that performs action or makes choice |
| Metafile | provides access to Windows Metafiles |
| MsgBox | displays message in dialog box and waits for response |
| NetClient | Provides access to .NET Classes |
| NetControl | Provides access to .NET controls. |
| NetType | Exports a namespace as a .NET class |
| OCXClass | provides access to OLE Custom Controls |
| OLEClient | provides access to OLE Automation objects |
| OLEServer | enables APL to act as an OLE Automation server |
| Poly | draws lines, polygons and filled areas |
| Printer | controls output to a printer |
| ProgressBar | indicates the progress of a lengthy operation |
| PropertyPage | tabbed or paged container for other controls |
| PropertySheet | container for PropertyPages |
| Rect | draws filled and unfilled rectangles |
| RichEdit | an edit box with word-processing capabilities |
| Root | the system object that is the progenitor of all others |
| Scroll | horizontal or vertical scrollbar |
| Separator | horizontal or vertical line in Menu, or vertical break in MenuBar |
| SM | allows ⎕SM and ⎕SR to be used with GUI objects |
| Spinner | input field with spin buttons |
| Splitter | divides a Form or SubForm into resizable panes |
| Static | frame or box used to contain graphics |
| StatusBar | manages a set of StatusField objects |
| StatusField | displays context-sensitive help, or keyboard status |
| SubForm | child Form that is constrained within its parent |
| SysTrayItem | represents an item that you can create in the Windows system tray |
| TabBar | manages a set of TabBtn objects |
| TabBtn | brings forward an associated SubForm |
| TabButton | represents a tab or button in a TabControl |
| TabControl | represents the standard Windows tab control |
| TCPSocket | provides an interface to TCP/IP sockets |
| Text | displays or prints arbitrary text |
| Timer | generates events at regular intervals |
| TipField | displays pop-up context-sensitive help |
| ToolBar | manages a block of controls including Buttons |
| ToolButton | represents a or button in a ToolControl |
| ToolControl | represents the standard Windows tool control |
| TrackBar | slider control for analogue input/output |
| TreeView | displays a hierarchical list of items |
| UpDown | a pair of arrow buttons |