What are the LiteView2 enumerations used for?

LiteView2 enumerations define named constant values for method parameters and property values. For example, LV2CaptureFormat specifies PNG or JPEG for screenshots; LV2BrowsingDataKinds specifies which cache data to clear; LV2ColorScheme sets light or dark mode. Using the named constants instead of bare numbers makes VBA code self-documenting and avoids magic numbers.

Do I need to reference a type library to use LiteView2 enumerations in VBA?

In Registered Mode (after regsvr32), you can add a reference to the LiteView2 type library in Tools > References to get IntelliSense and named constants. In Reg-Free Mode (IBrowserPool), declare the constants as Public Const in your modLV2Pool module using the numeric values listed on this page.

How many enumerations does LiteView2 expose?

LiteView2 exposes 13 enumerations covering browsing data kinds, resource context, focus reasons, popup mode, license state, color scheme, print orientation, tracking prevention, memory usage target, scrollbar style, download dialog alignment, PDF toolbar items, and screenshot capture format.

LiteView2 WebView2 VBA Enumerations — 13 Enums and All Constants

13 enums defining constants used across the LiteView2 API

Works in VBA (Excel, Access, Word, Outlook, PowerPoint, Visio, Project), VB6, VB.NET, C#, C++, Delphi, Python, PowerShell, AutoIt — and any COM host.

Note

Flag enums (marked with Flags) can be combined using bitwise OR.

LiteView2BrowsingDataKinds Flags

Bitfield flags for ClearBrowsingData. Combine with OR (e.g., LV2_DATA_COOKIES Or LV2_DATA_CACHE_STORAGE).

Constant	Value	Description
LV2_DATA_FILE_SYSTEMS	1	File systems
LV2_DATA_INDEXED_DB	2	IndexedDB
LV2_DATA_LOCAL_STORAGE	4	Local storage
LV2_DATA_WEB_SQL	8	Web SQL
LV2_DATA_CACHE_STORAGE	16	Cache storage
LV2_DATA_DOM_STORAGE	32	DOM storage
LV2_DATA_COOKIES	64	Cookies
LV2_DATA_ALL_SITE	128	All site data
LV2_DATA_DISK_CACHE	256	Disk cache
LV2_DATA_DOWNLOAD_HISTORY	512	Download history
LV2_DATA_GENERAL_AUTOFILL	1024	Autofill data
LV2_DATA_PASSWORD_AUTOSAVE	2048	Saved passwords
LV2_DATA_BROWSING_HISTORY	4096	Browsing history
LV2_DATA_SETTINGS	8192	Settings
LV2_DATA_ALL_PROFILE	16384	All profile data

' Clear cookies and cache
m_lv.ClearBrowsingData LV2_DATA_COOKIES Or LV2_DATA_CACHE_STORAGE

LiteView2ResourceContext

Resource types for AddWebResourceRequestedFilter.

Constant	Value	Description
LV2_RESOURCE_ALL	0	All resources
LV2_RESOURCE_DOCUMENT	1	HTML documents
LV2_RESOURCE_STYLESHEET	2	CSS
LV2_RESOURCE_IMAGE	3	Images
LV2_RESOURCE_MEDIA	4	Audio/Video
LV2_RESOURCE_FONT	5	Web fonts
LV2_RESOURCE_SCRIPT	6	JavaScript
LV2_RESOURCE_XHR	7	XMLHttpRequest
LV2_RESOURCE_FETCH	8	Fetch API
LV2_RESOURCE_TEXTTRACK	9	WebVTT
LV2_RESOURCE_EVENTSOURCE	10	Server-sent events
LV2_RESOURCE_WEBSOCKET	11	WebSocket
LV2_RESOURCE_MANIFEST	12	Web App manifests
LV2_RESOURCE_OTHER	13	Other

LV2_FOCUS_REASON

Specifies the reason for a focus change.

Constant	Value	Description
LV2_FOCUS_TABFORWARD	0	Tab forward
LV2_FOCUS_TABBACKWARD	1	Tab backward
LV2_FOCUS_PROGRAMMATIC	2	Programmatic focus

LV2_POPUP_MODE

Controls how popup windows are handled.

Constant	Value	Description
LV2_POPUP_ALLOW	0	Allow popups
LV2_POPUP_BLOCK	1	Block popups
LV2_POPUP_SAME_WINDOW	2	Open in same window

LV2_LICENSE_STATE

Indicates the current license status.

Constant	Value	Description
LV2_LICENSE_VALID	0	License valid
LV2_LICENSE_TRIAL	1	Trial mode
LV2_LICENSE_EXPIRED	2	License expired
LV2_LICENSE_INVALID	3	Invalid license

LV2_COLOR_SCHEME

Sets the preferred color scheme for web content.

Constant	Value	Description
LV2_COLOR_AUTO	0	Follow system
LV2_COLOR_LIGHT	1	Force light
LV2_COLOR_DARK	2	Force dark

LV2_PRINT_ORIENTATION

Page orientation for printing and PDF export.

Constant	Value	Description
LV2_PRINT_PORTRAIT	0	Portrait
LV2_PRINT_LANDSCAPE	1	Landscape

LV2_TRACKING_PREVENTION

Tracking prevention level for the browser profile.

Constant	Value	Description
LV2_TRACKING_NONE	0	No prevention
LV2_TRACKING_BASIC	1	Basic
LV2_TRACKING_BALANCED	2	Balanced
LV2_TRACKING_STRICT	3	Strict

LV2_MEMORY_USAGE

Memory usage target level.

Constant	Value	Description
LV2_MEMORY_NORMAL	0	Normal
LV2_MEMORY_LOW	1	Low memory target

LV2_SCROLLBAR_STYLE

Scrollbar rendering style.

Constant	Value	Description
LV2_SCROLLBAR_DEFAULT	0	Default scrollbar
LV2_SCROLLBAR_FLUENT_OVERLAY	1	Fluent overlay

LV2_DOWNLOAD_DIALOG_CORNER_ALIGNMENT

Corner alignment for the download dialog.

Constant	Value	Description
LV2_DOWNLOAD_CORNER_TOP_LEFT	0	Top left
LV2_DOWNLOAD_CORNER_TOP_RIGHT	1	Top right
LV2_DOWNLOAD_CORNER_BOTTOM_LEFT	2	Bottom left
LV2_DOWNLOAD_CORNER_BOTTOM_RIGHT	3	Bottom right

LV2_PDF_TOOLBAR_ITEMS Flags

Bitfield flags for controlling PDF viewer toolbar visibility.

Constant	Value	Description
LV2_PDF_NONE	0	No items
LV2_PDF_SAVE	1	Save button
LV2_PDF_PRINT	2	Print button
LV2_PDF_SAVE_AS	4	Save As button
LV2_PDF_ZOOM_IN	8	Zoom In button
LV2_PDF_ZOOM_OUT	16	Zoom Out button

' Hide Save and Print buttons from PDF toolbar
m_lv.HiddenPdfToolbarItems = LV2_PDF_SAVE Or LV2_PDF_PRINT

LV2_BOUNDS_MODE

Controls how bounds coordinates are interpreted when embedding the browser.

Constant	Value	Description
LV2_BOUNDS_RAW_PIXELS	0	Bounds are specified in raw pixels (default). The WebView2 control is positioned using raw pixel coordinates regardless of DPI scaling.
LV2_BOUNDS_RASTERIZATION_SCALE	1	Bounds use the rasterization scale. Coordinates are automatically adjusted for the current DPI/scaling factor of the display.

' Use DPI-aware bounds
pool.SetBoundsMode browserIndex, LV2_BOUNDS_RASTERIZATION_SCALE

LV2_BIND_FLAGS Flags

Optional flags for BindScriptObject in the Two-Way Script Bridge. Combine with Or.

Constant	Value	Description
LV2_BIND_NONE	0	Default. Resolve lazily; the first call surfaces any resolution error.
LV2_BIND_VALIDATE	1	Resolve the object at bind time; return an error immediately if it is missing.
LV2_BIND_TRANSIENT	2	Drop the binding on the next navigation instead of re-resolving it.
LV2_BIND_RAW_EXPRESSION	4	Accept an arbitrary JavaScript expression instead of a simple object path. The caller accepts the injection risk — use only with trusted strings.
LV2_BIND_ASYNC	8	Reserved — accepted but has no effect in this release.
LV2_BIND_FAIL_IF_BOUND	16	Return an error instead of silently replacing an existing binding.
LV2_BIND_FOLLOW_RESOLUTION	32	Re-evaluate the expression on every call (tracks reassignment) instead of capturing the object once at bind time.

' Validate at bind time
m_lv.BindScriptObject "page", "window.PageController", LV2_BIND_VALIDATE

LV2_BRIDGE_ERR

Error codes returned by the Two-Way Script Bridge — surfaced as Err.Number and via GetLastBridgeError.

Constant	Value	When
LV2_BRIDGE_ALIAS_NOT_FOUND	&H80040501	Call on an alias that was never bound.
LV2_BRIDGE_OBJECT_NOT_RESOLVED	&H80040502	The bound expression evaluates to nothing on the page.
LV2_BRIDGE_METHOD_NOT_FOUND	&H80040503	No method of that name on the object.
LV2_BRIDGE_PROPERTY_NOT_FOUND	&H80040504	No property of that name on the object.
LV2_BRIDGE_JS_EXCEPTION	&H80040505	The JavaScript threw — see the message.
LV2_BRIDGE_PROMISE_RETURNED	&H80040506	A synchronous call received a Promise; use a synchronous method.
LV2_BRIDGE_TIMEOUT	&H80040507	The call did not complete within 30 seconds.
LV2_BRIDGE_NOT_READY	&H80040508	The browser is not ready yet.
LV2_BRIDGE_INVALID_ARG	&H80040509	Bad alias/member name, or a value that cannot be passed.
LV2_BRIDGE_INVALID_EXPRESSION	&H8004050A	The bind expression is not a safe object path (use LV2_BIND_RAW_EXPRESSION to override).
LV2_BRIDGE_REENTRY_BLOCKED	&H8004050B	Too many nested synchronous calls.
LV2_BRIDGE_ALIAS_ALREADY_BOUND	&H8004050C	Rebind blocked because LV2_BIND_FAIL_IF_BOUND was set.
LV2_BRIDGE_PROPERTY_IS_FUNCTION	&H8004050D	GetScriptProperty target is a function (usable as a method-exists probe).

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