Constants module

The VBRUN Constants module collects the named-integer enumerations that classic VB6 forms, intrinsic controls, and runtime services use to spell out their option values --- colours, mouse pointers, key codes, drag/drop states, OLE container behaviour, printer setup values, and so on. There are no standalone constants in this module; everything is grouped into an enumeration so that IntelliSense can offer the right options at each property or argument.

Some enumerations are tagged [MustBeQualified] in the source --- their members must be referenced through the enum name (e.g. ControlBorderStyleConstantsCustom.vbCustomBorder) to avoid clashing with members of similarly named enumerations. This is noted on those enum's pages.

Enumerations

• AlignConstants -- alignment values for the Align property (none, top, bottom, left, right)
• AlignmentConstants -- text alignment values (left, right, centred)
• AlignmentConstantsNoCenter -- text alignment values without a centred option
• AppearanceConstants -- flat or 3-D drawing style for controls
• ApplicationStartConstants -- whether the application was started standalone or via Automation
• AspectTypeConstants -- rendering aspects of an OLE object (content, thumbnail, icon, print)
• AsyncReadConstants -- flags for UserControl.AsyncRead
• AsyncStatusCodeConstants -- status codes reported by the AsyncReadProgress event
• AsyncTypeConstants -- the kind of data being read in UserControl.AsyncRead
• BackFillStyleConstants -- whether a control's background fill is opaque or transparent
• BorderStyleConstants -- line style for drawn shapes (solid, dashed, dotted, transparent, ...)
• ButtonConstants -- standard or graphical button style
• CheckBoxConstants -- state of a check box (unchecked, checked, grayed)
• ClipboardConstants -- clipboard format identifiers (vbCFText, vbCFBitmap, ...)
• ColorConstants -- common named colours (vbBlack, vbBlue, vbRed, ...)
• ComboBoxConstants -- combo-box style (drop-down, simple, drop-down list)
• ControlBorderStyleConstants -- single-border style (none or fixed single)
• ControlBorderStyleConstantsCustom -- single-border style with a custom-drawn option
• ControlTypeConstants -- identifiers for the standard intrinsic control types
• DataBOFconstants -- action when a Data control reaches the start of a recordset
• DataEOFConstants -- action when a Data control reaches the end of a recordset
• DataErrorConstants -- response to an error from a data binding operation
• DataValidateConstants -- actions reported in a Data control's Validate event
• DatabaseTypeConstants -- database engine to use with the Data control (ODBC, Jet, ACE)
• DefaultCursorTypeConstants -- cursor type for a Data control connection
• DockModeConstants -- dock-edge values for forms and toolbars
• DragConstants -- states reported by DragDrop/DragOver
• DragModeConstants -- automatic or manual drag mode
• DragOverConstants -- enter/leave/over state values during a drag-over event
• DrawModeConstants -- raster operation for PSet/Line/Circle drawing
• DrawStyleConstants -- line style for drawn lines and shape outlines
• FillStyleConstants -- fill pattern for filled shapes
• FillStyleConstantsEx -- fill pattern with twinBASIC gradient extensions
• FormArrangeConstants -- MDI child arrangement modes (cascade, tile, ...)
• FormBorderStyleConstants -- form window border style (sizable, fixed dialog, tool window, ...)
• FormShowConstants -- whether a form is shown modal or modeless
• FormWindowStateConstants -- normal, minimised, or maximised window state
• HitResultConstants -- return values from a UserControl HitTest event
• KeyCodeConstants -- virtual-key code values for KeyDown/KeyUp
• LinkModeConstants -- DDE link mode (none, automatic, manual, notify)
• ListBoxConstants -- list-box style (standard, check-box, colour swatch)
• LoadPictureColorConstants -- colour-depth flag for LoadPicture
• LoadPictureSizeConstants -- size selector for LoadPicture
• LoadResConstants -- resource type for LoadResPicture
• LogEventTypeConstants -- severity for LogEvent (error, warning, information)
• LogModeConstants -- destination and behaviour flags for the application log
• MenuAccelConstants -- keyboard-accelerator codes for menu items
• MenuControlConstants -- alignment and triggering options for popup menus
• MouseButtonConstants -- bit flags for the pressed mouse buttons (left, right, middle)
• MousePointerConstants -- cursor shape for the MousePointer property
• MultiSelectConstants -- multi-selection mode for a list box
• NegotiatePositionConstants -- positioning of OLE-negotiated menus
• OLEContainerActivateConstants -- when the OLE container activates its embedded object
• OLEContainerConstants -- combined enumeration of all OLE container option values
• OLEContainerDisplayTypeConstants -- whether to show content or icon
• OLEContainerSizeModeConstants -- sizing rule for an embedded OLE object
• OLEContainerTypesAllowedConstants -- linked, embedded, or either object types
• OLEContainerUpdateOptionsConstants -- update mode for an OLE-linked object
• OLEDragConstants -- automatic or manual OLE drag
• OLEDropConstants -- none/manual/automatic OLE drop targets
• OLEDropEffectConstants -- effect of an OLE drop (copy, move, link, scroll)
• OldLinkModeConstants -- legacy DDE link modes (hot, cold, server)
• PaletteModeConstants -- palette source for forms and controls
• ParentControlsType -- whether ParentControls wraps items in their Extender
• PictureTypeConstants -- the type of a StdPicture (bitmap, icon, metafile, enhanced metafile)
• PrinterObjectConstants -- combined enumeration of all printer setup values
• PrinterObjectConstants_ColorMode -- colour or monochrome printing
• PrinterObjectConstants_Duplex -- one-sided or two-sided printing mode
• PrinterObjectConstants_Orientation -- portrait or landscape paper orientation
• PrinterObjectConstants_PaperBin -- paper-source identifiers for the printer
• PrinterObjectConstants_PaperSize -- paper-size identifiers for the printer
• PrinterObjectConstants_PrintQuality -- draft / low / medium / high print quality
• QueryUnloadConstants -- reason codes reported in a form's QueryUnload event
• RasterOpConstants -- raster-operation codes for PaintPicture
• RecordsetTypeConstants -- table / dynaset / snapshot recordset types
• ScaleModeConstants -- measurement units for a form's or container's Scale properties
• ScrollBarConstants -- which scrollbars a control should display (none, horizontal, vertical, both)
• ShapeConstants -- geometric shape selectors for the Shape control
• ShiftConstants -- bit flags for Shift, Ctrl, and Alt in mouse and key events
• ShortcutConstants -- shortcut-key identifiers for menu items
• StartUpPositionConstants -- initial position of a form (manual, owner, screen, default)
• StorageTypeContants -- OLE data storage medium (HGLOBAL, file, IStream, IStorage, ...)
• SystemColorConstants -- high values referring to system palette entries
• VariantTypeConstants -- DAO field-type tags (legacy)
• VerticalAlignmentConstants -- vertical text alignment (top, middle, bottom)
• ZOrderConstants -- selectors for BringToFront / SendToBack

INFO

The enumeration name StorageTypeContants (note the missing s) is preserved here exactly as the runtime exposes it; the misspelling is a long-standing VB6 holdover.