; ----- Commands -----
; ViewerEx::ClearContent() - clear gadget content
; ViewerEx::EventValue() - return string value for the event (e.g. URL)
; ViewerEx::Gadget() - new gadget
; ViewerEx::Load() - load contents for the gadget from a file
; ViewerEx::SetAutoResizeFlags() - automatically adjust gadget to window size.
; ViewerEx::SetContent() - select or change content using its label
; ViewerEx::SetHeadingOffset() - offset for numbering headings
; ----- #Enable_AddViewerContent & #Enable_CreateViewerContent -----
; ViewerEx::UseFont() - specify the character set to be used.
; ViewerEx::UseImage() - specify images to be used
; ViewerEx::UsePattern() - set hyphenation patterns to be used
; ----- #Enable_AddViewerContent (add content directly) -----
; ViewerEx::AddHeading() - insert numbered headline into gadget
; ViewerEx::AddImage() - insert image into gadget
; ViewerEx::AddLink() - insert internal link into gadget
; ViewerEx::AddListing() - insert a listing with bullets
; ViewerEx::AddSpacing() - insert space between the items
; ViewerEx::AddText() - insert text into gadget
; ViewerEx::AddURL() - insert URL into gadget
; ViewerEx::DefineHeading() - define the appearance of headings
; ViewerEx::DefineStyle() - define the appearance of texts
; ViewerEx::DisableReDraw() - temporarily disable content redrawing
; ViewerEx::Save() - save the current content of the gadget with all required resources
; ViewerEx::SetHyphenation() - activate hyphenation for the corresponding language (pattern).
; ViewerEx::SetMargin() - define page margins
; ----- #Enable_CreateViewerContent -----
; ViewerEx::Create() - create a new page with content under this label.
; ViewerEx::Close() - close the page with the corresponding label.
; ViewerEx::CopyContent() - copy generated content into a ViewerEx - Gadget.
; ViewerEx::Export() - export generated pages with content and save them with all resources in one file.
; ViewerEx::Heading() - add a numbered heading.
; ViewerEx::HeadingDefinition() - defining the appearance of headings.
; ViewerEx::Hyphenation() - activate hyphenation for the corresponding language (pattern).
; ViewerEx::Image() - add a image.
; ViewerEx::Link() - add a internal link.
; ViewerEx::Listing() - add a listing with bullets
; ViewerEx::Margin() - define page margins.
; ViewerEx::Spacing() - add space between items.
; ViewerEx::StyleDefinition() - define the appearance of texts.
; ViewerEx::Text() - add text.
; ViewerEx::URL() - add a URL.