| Accelerator | specifies keystroke that will generate Select event |
| Active | determines whether object can generate events |
| Align | determines the position of text or for Scroll object |
| AlignChar | specifies a character for column alignment in a Grid |
| AlwaysShowBorder | specifies how the current cell in a Grid is displayed when the Grid loses focus |
| AlwaysShowSelection | specifies how the highlighted selection in an object is displayed when the object loses focus |
| APLVersion | reports the version of Dyalog being run |
| ArcMode | determines how arcs are drawn ( Ellipse ) |
| AsChild | determines if an HTMLRenderer object is displayed in a separate top-level window or as a child of another object. |
| Attach | specifies how object is reconfigured when parent is resized |
| AutoArrange | whether or not items in a ListView are rearranged automatically |
| AutoBrowse | specifies whether or not functions and variables are fixed when an OLEClient is created |
| AutoConf | how a child reacts to its parent being resized |
| AutoExpand | whether rows and columns are added to a Grid |
| BandBorders | Specifies whether or not narrow lines are drawn to separate adjacent bands in a CoolBar |
| BCol | specifies background colour |
| Bits | defines the pattern for a Bitmap , Cursor , or Icon |
| Border | determines whether or not an object has a border |
| BtnPix | associates Bitmap s with Button , Menu and MenuItem objects |
| Btns | determines the buttons shown in a MsgBox |
| ButtonsAcceptFocus | affects the keyboard handling in a ToolControl |
| CalendarCols | Specifies the colours used for various elements in the Calendar object |
| Cancel | used to associate the Esc key with a particular Button |
| Caption | specifies text in an object |
| CBits | represents the picture in a Bitmap object |
| CEFVersion | reports the version of the Chromium Embedded Framework (CEF) that is being used. |
| CellFonts | specifies fonts to be used by the cells in a Grid |
| CellHeights | specifies the heights of the cells in a Grid |
| CellSelect | specifies the type(s) of selection a user can perform in a Grid |
| CellSet | flags which cells in a Grid have values and which are empty |
| CellTypes | specifies the type of the cells in a Grid |
| Cells | specifies the widths of cells in a Grid |
| Changed | flags whether or not data in an object has been changed |
| CharFormat | specifies character formatting in a RichEdit |
| CharSet | specifies the character encoding of a Font object |
| CheckBoxes | specifies whether or not check boxes are displayed alongside items in a ListView or TreeView object |
| Checked | determines whether check mark is displayed by MenuItem |
| ChildEdge | specifies whether or not a CoolBand leaves space above and below its child window |
| ChildList | reports the types of object that may be children of an object |
| CircleToday | specifies whether or not a circle is drawn around the Today date in a Calendar object |
| ClassID | reports the CLSID of an OLEClient or OLEServer |
| ClassName | specifies the name of the OLE object to which an OLEClient object is to be connected |
| ClipCells | specifies whether or not columns of a Grid are clipped |
| CMap | defines a colour map for a Bitmap or Icon |
| ColLineTypes | specifies the appearance of vertical grid lines in a Grid |
| ColSortImages | specifies the images to be used to display sort images in the column titles of a Grid |
| ColTitle3D | specifies the appearance of column titles for a ListView |
| ColTitleAlign | specifies the alignment of column titles |
| ColTitleBCol | specifies the background colour for column titles |
| ColTitleDepth | specifies the structure of hierarchical column titles for a Grid |
| ColTitleFCol | specifies the colour of the row titles in a Grid |
| ColTitles | specifies the column titles for a Grid or ListView |
| Column | specifies the width of columns for a multi-column List |
| Container | the Object Representation of an ActiveXContainer object |
| Coord | specifies the coordinate system for an object |
| CornerTitleBCol | specifies the background colour of the corner rectanglein a Grid |
| Cue | specifies text displayed in an empty input field |
| CurCell | identifies the current cell in a Grid |
| CurrentColor | Specifies the currently selected colour in a ColorButton object |
| CurrentState | reports the current state of a TCPSocket object |
| CursorObj | associates a cursor with an object |
| CustomColors | Specifies the custom colors associated with a ColorButton object |
| Decimals | specifies the number of decimal places for a Numeric field |
| Default | nominates a Button to be selected with the Enter key |
| DefaultColors | Specifies the default colours associated with a ColorButton object |
| Depth | specifies the structure of items for a TreeView |
| DevCaps | reports the device capabilities of the screen or printer |
| Directory | specifies the directory for a FileBox |
| Divider | controls the presence or absence of a recessed line in a ToolControl object |
| Dragable | specifies whether user may drag an object with the mouse |
| DragItems | specifies whether user may drag/drop items in a ListView |
| DrawMode | provides direct control over the low-level drawing operation performed by graphical objects |
| EdgeStyle | specifies 3-dimensional appearance |
| EditLabels | specifies whether or not the user may edit the labels in a ListView or TreeView |
| Elevated | affects the appearance of a CommandLink Button |
| Encoding | specifies how character data are encoded or translated for a TCPSocket |
| EnterReadOnlyCells | specifies whether or not the user may visit read-only cells in a Grid |
| Event | associates an event with a callback function or ⎕DQ termination |
| EventList | reports names of events generated by an object |
| ExportedFns | specifies the functions to be exposed as methods by an OLEServer object |
| ExportedVars | specifies the variables to be exposed as properties by an OLEServer object |
| FCol | specifies foreground colour |
| FieldType | specifies formatting and validation |
| FileMode | specifies the mode (read or write) for a FileBox object |
| File | specifies a filename |
| FillCol | specifies fill colour |
| Filters | specifies file filters for a FileBox |
| FirstDay | specifies the day that is considered to be the first day of the week for a Calendar object |
| Fixed | specifies whether a font is fixed-width or proportional |
| FixedOrder | specifies whether or not the CoolBar displays CoolBands in the same order |
| FlatSeparators | specifies whether or not separators are drawn between buttons in a TabControl object |
| FontList | provides a list of available fonts |
| FontObj | specifies the font to be used |
| Formats | data formats currently available from the Clipboard object |
| FormatString | defines a ⎕FMT specification to be used to format a numeric value |
| FStyle | specifies fill style |
| FullRowSelect | specifies whether or not the entire row is highlighted when an item in a ListView or a TreeView is selected |
| GridBCol | specifies the background colour for a Grid |
| GridFCol | specifies the colour of (all) grid lines for a Grid |
| GridLineFCol | specifies grid line colours for a Grid |
| GridLine | specifies grid line widths for a Grid |
| GridLines | specifies whether or not lines are displayed between items in a ListView object |
| GripperMode | specifies whether or not a CoolBand has a gripper bar |
| HAlign | specifies horizontal text alignment |
| Handle | Returns the window handle of an object |
| HasApply | Specifies whether or not a PropertySheet has an Apply button |
| HasButtons | Specifies whether or not a TreeView object displays buttons |
| HasClearButton | Specifies whether or not an Edit object displays an  button which may be used to clear the contents of the field. |
| HasHelp | Specifies whether or not a Help button is displayed or active |
| HasLines | Specifies whether or not a TreeView object displays tree lines |
| HasTicks | Specifies whether or not tick marks are displayed in a TrackBar |
| HasToday | Specifies whether or not the Today date is displayed in the bottom left corner of a Calendar object |
| Header | specifies whether or not column titles are displayed in a ListView |
| HeaderImageIndex | Specifies the images for each column title in a ListView |
| HeaderImageList | Specifies the images for column titles in a ListView |
| HelpButton | specifies whether or not a question (?) button appears in the title bar of a Form |
| HelpFile | reports the name of a help file associated with an OLE Control |
| HighlightHeaders | Specifies whether or not row and column headings in a Grid are highlighted to indicate the current selection |
| HintObj | specifies the object in which to display the Hint |
| Hint | specifies the text for a context sensitive help message |
| HotSpot | specifies the hotspot for a Cursor |
| HotTrack | specifies whether or not the tabs or buttons in a TabControl object are automatically highlighted by the mouse pointer |
| HScroll | determines whether an object has a horizontal scrollbar |
| HTML | specifies the content to be rendered by an HTMLRenderer object. |
| IconObj | associates an Icon with a minimized Form |
| ImageCount | Reports the number of images in an ImageList |
| ImageIndex | Maps images in an ImageList to items in a ListView or TreeView |
| ImageListObj | Associates an ImageList with a ListView or TreeView |
| Index | position of items in Combo or List , or selected filter in a FileBox |
| Input | names of objects associated with cells of Grid |
| InputMode | specifies the behaviour of cursor keys etc. in a Grid |
| InputModeKey | specifies the key used to switch to Incell editing in a Grid |
| InputProperties | Specifies the mapping between the Values property of a Grid and properties of external objects (ActiveX controls and .NET classes) which are displayed in Grid cells |
| InterceptedURLs | specifies whether an HTMLRenderer will trigger an HTTPRequest event for the requested URL or will attempt to satisfy the request from the internet |
| Interval | frequency with which a Timer generates events |
| Italic | specifies whether or not a font is italic |
| Items | list of items |
| ItemGroups | specifies item groupings for a ListView object |
| ItemGroupMetrics | specifies caption, colours and spacing for grouped items in a ListView object |
| Justify | determines how text is justified within an object |
| KeepBits | determines how Bitmap objects are stored in the workspace |
| KeepOnClose | determines whether or not namespaces are retained when their GUI components are destroyed |
| LastError | provides information about the most recent error reported by OLE |
| LateBind | specifies whether or not Type Information is read when an OLEClient is instantiated, and when an OLEServer hosts an external COM object |
| Limits | specifies minimum and maximum values for an object |
| LocalAddrName | specifies the host name of your computer |
| LocalAddr | specifies the IP address of your computer |
| Locale | specifies the language in which the OLE server, attached to an OLEClient , exposes its methods and properties |
| LocalPortName | specifies the port name of the local service that you wish to offer as a TCP/IP server |
| LocalPort | identifies the port number associated with a TCPSocket object |
| LStyle | specifies line style |
| LWidth | specifies line width |
| MapCols | specifies whether button colours in bitmaps and icons in an ImageList are re-mapped to reflect the users colour preferences |
| Masked | specifies the type of image in an ImageList |
| Mask | specifies the mask for a Cursor or Icon |
| MaxButton | determines whether or not a Form has a "maximize" button |
| MaxDate | specifies the largest date that may be displayed by a Calendar object |
| MaxLength | specifies the maximum number of characters that the user may enter into an object |
| MaxSelCount | specifies the maximum number of contiguous days that the user may select in a Calendar object |
| MDIActive | specifies the name of the active SubForm in an MDI application |
| MDIActiveObject | specifies a ref to the active SubForm in an MDI application |
| MDIMenu | nominates a particular Menu to be the MDI application menu |
| Metafile | accesses clipboard data in Windows Metafile format |
| MethodList | reports the names of methods provided by an OLE Control |
| MinButton | determines whether a Form has a "minimize" button |
| MinDate | Specifies the smallest date that may be displayed by a Calendar object |
| MonthDelta | specifies the number of months by which a Calendar object scrolls when the user clicks its scroll buttons |
| Moveable | determines whether a Form may be moved on the screen |
| MultiColumn | specifies whether or not a List displays items in more than one column |
| MultiLine | determines whether or not the tabs or buttons will be arranged in multiple flights or multiple rows/columns in a TabControl or ToolControl object |
| MultiSelect | specifies whether or not the user can select more than one button in a TabControl at the same time |
| NewLine | specifies whether or not a CoolBand starts a new row in a CoolBar |
| Note | specifies additional text for a CommandLink Button |
| OLEControls | reports the names of OLE Controls installed on the computer |
| OnTop | specifies that a Form is permanently raised to the front or specifies the level at which a graphic is drawn on a Grid |
| Orientation | specifies the orientation of the Printer |
| OtherButton | Specifies whether or not a ColorButton object displays an Other button, that allows access to custom colours |
| OverflowChar | specifies the character to be displayed in a Grid cell to indicate that its contents will not fit |
| Page | specifies the width of the paper for a RichEdit |
| PageActive | specifies the name of the current PropertyPage in a PropertySheet |
| PageActiveObject | specifies a ref to the current PropertyPage in a PropertySheet |
| PageSize | specifies the size of the thumb in a scrollbar |
| ParaFormat | specifies paragraph formatting for a RichEdit |
| Password | specifies the symbol for a password field |
| Picture | specifies a Bitmap, Icon or Metafile object to be drawn |
| PName | specifies the device for a Printer object, or the face name for a Font |
| Points | specifies points for graphical objects |
| Popup | specifies the name of a (popup) Menu object that is associated with a ToolButton |
| Posn | specifies the position of an object within its parent |
| PrintList | reports the list of installed printers |
| ProgressStyle | specifies the appearance of a ProgressBar control |
| PropList | reports the list of properties applicable to the object |
| QueueEvents | specifies how events are handled for an instance of an OCXClass object (an ActiveX control) |
| Radius | specifies the radius for a Circle |
| Range | specifies the range of a scrollbar |
| ReadOnly | specifies whether or not the user may change data in an Edit or Spinner , or the State of a Button |
| RealSize | specifies the size of a placeable Metafile |
| Redraw | specifies whether or not an object is automatically redrawn when required |
| RemoteAddrName | specifies the host name of the remote computer to which you wish to make a TCP/IP connection |
| RemoteAddr | identifies the port number associated with a service on a remote computer |
| RemotePortName | specifies the port name of the remote service to which you wish to make a TCP/IP connection |
| RemotePort | identifies the port number associated with a service on a remote computer |
| ReportBCol | specifies background colours for items in a ListView in Report View |
| ReportImageIndex | specifies images for individual column titles in a ListView in Report View |
| ReportInfo | specifies additional information for a ListView |
| ResizeCols | specifies whether or not the user may alter the width of columns in a Grid by dragging |
| ResizeColTitles | specifies whether or not the user may alter the height of the column titles in a Grid by dragging |
| ResizeRows | specifies whether or not the user may alter the height of rows in a Grid by dragging |
| ResizeRowTitles | specifies whether or not the user may alter the width of the row titles in a Grid by dragging |
| Rotate | specifies the angle of rotation for a font |
| RowHiddenDepth | identifies which rows in a Grid are hidden |
| RowLineTypes | specifies the appearance of horizontal grid lines in a Grid |
| Rows | number of rows displayed in drop-down list of a Combo |
| RowTitleAlign | specifies the alignment of the row titles in a Grid |
| RowTitleBCol | specifies the background colour for row titles |
| RowTitleDepth | specifies the structure of hierarchical row titles in a Grid |
| RowTitleFCol | specifies the colour of the row titles in a Grid |
| RowTitles | specifies the row titles for a Grid |
| RowTreeDepth | specifies the structure of rows for a Grid |
| RowTreeImages | specifies the images (bitmaps) for the treeview items in a Grid |
| RowTreeStyle | specifies the appearance of treeview items in a Grid |
| RTFText | specifies the contents of an object in Rich Text Format |
| RunMode | specifies the way in which an OLEServer object serves multiple clients |
| ScrollOpposite | specifies that unneeded tabs scroll to the opposite side of a TabControl |
| SelDate | identifies the range of dates that is currently selected in a Calendar object |
| SelectionBorderWidth | specifies the width of the border drawn around the block of selected cells in a Grid |
| SelectionColor | specifies the colour of the block of selected cells in a Grid |
| SelectionColorAlpha | specifies the transparency of the block of selected cells in a Grid |
| SelImageIndex | specifies which images in an ImageList are used to identify selected items in a TreeView |
| SelItems | specifies the selected item(s) in an object |
| SelRange | specifies the selected range in a TrackBar |
| SelText | specifies the selected text in an Edit or Combo |
| ServerVersion | specifies the version number of an OLEServer object |
| ShowCaptions | specifies whether or not the captions of individual ToolButton objects are drawn |
| ShowCueWhenFocused | specifies whether or not a Cue is displayed when the input field receives the input focus |
| ShowDropDown | specifies whether or not a drop-down menu symbol is drawn in a ColorButton or alongside ToolButton objects |
| ShowInput | determines how Combo and Button objects associated with cells of a Grid are displayed |
| ShowSession | specifies whether or not the APL Session window is displayed when an OLEServer object is started by an OLE client |
| ShowThumb | specifies whether or not the thumb is displayed in a TrackBar |
| SingleClickExpand | specifies whether or not an item in a TreeView control is expanded when the user selects the item |
| Sizeable | specifies whether user may resize an object using the mouse |
| Size | specifies the size of an object |
| SocketNumber | reports the Window handle of the socket attached to the TCPSocket object |
| SocketType | specifies the type of the TCP/IP socket for a TCPSocket object |
| SortItems | specifies whether or not the items in a List object are sorted |
| SplitObj1 | specifies the name of an object managed by a Splitter |
| SplitObj2 | specifies the name of an object managed by a Splitter |
| Start | specifies start angles for arcs of Circle and Ellipse objects |
| State | specifies the state of a Button or Form |
| Step | increments for movement |
| Style | specifies the style of an object |
| SysMenu | determines whether a Form has a standard system menu |
| TabFocus | specifies the focus behaviour for the TabControl object |
| TabIndex | Specifies the tabbing order for controls |
| TabJustify | Specifies the positions at which the picture and caption are drawn within a TabButton |
| TabObj | specifies name of SubForm associated with a TabBtn |
| TabSize | specifies the size of fixed size tabs or buttons in a TabControl object |
| TargetState | reports the intended final state of a TCPSocket object |
| Text | specifies/reports the text in an Edit , MsgBox , or Combo |
| TextSize | reports the bounding rectangle for text |
| Thumb | specifies the position of the thumb in a scrollbar |
| ThumbRect | reports the extents of the thumb in a TrackBar |
| TickAlign | specifies the alignment of tick marks in a TrackBar |
| TickSpacing | specifies the spacing of tick marks in a TrackBar |
| TipObj | specifies the object in which to display the Tip |
| Tip | specifies the text for a pop-up help message |
| TitleHeight | specifies the height of the column titles in a Grid |
| Title | specifies the width of the row titles in a Grid |
| Today | specifies today's date in a Calendar object |
| ToolboxBitmap | reports the bitmap image associated with an OLE Control |
| TrackRect | reports the extents of the slider in a TrackBar |
| Translate | specifies whether or not an object performs ⎕AV translation |
| Transparent | specifies whether or not a ToolControl is transparent |
| TypeLibFile | reports the name of the file in which the Type Library for an OLEServer object is stored |
| TypeLibID | reports the value of the globally unique identifier ( GUID ) of the Type Library associated with an OLEServer object |
| TypeList | reports the names of data types associated with an OLE Control |
| Type | specifies the type of an object |
| Underline | specifies whether or not a font is underlined |
| URL | specifies the "root" url of the server component of the HTMLRenderer object for internal processing, or it specifies an external URL to be retrieved via the internet |
| ValidIfEmpty | specifies whether or not an empty Edit object is deemed to be valid |
| VAlign | specifies vertical text alignment |
| Value | value of a number, date or time in an Edit or Label object |
| Values | the data matrix in a Grid |
| VariableHeight | specifies whether or not a CoolBar displays bands at the minimum required height, or all the same height |
| View | specifies how items in a ListView are arranged |
| Visible | specifies whether or not an object is currently visible |
| VScroll | specifies whether or not an object has a vertical scrollbar |
| WantsReturn | specifies how the Enter key is treated by an edit box |
| WeekNumbers | specifies whether or not a Calendar object displays week numbers |
| Weight | specifies the weight (boldness) of a font |
| WordFormat | specifies word formatting for a RichEdit |
| Wrap | specifies whether or not an object wraps its contents |
| XRange | specifies origin and scale on the x-axis |
| Yield | specifies how frequently Dyalog APL/W yields control |
| YRange | specifies origin and scale on the y-axis |