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Moved and edited contents of Underlining_With_TextBackgrounds
{{todo|Add more examples of usage of textbackgrounds.}}
Pages, paragraphs, words can have a background: color or screenframe. Note that "screen" is deprecated in MkIVConTeXt creates these using [[MetaPost]].
(See, eventually, the [[manual:details.pdf| details]] manual or the {{src|anch-bck.mkvi|source}} for further explanations.) == What if textbackground doesn’t work? == The textbackground commands require [[write18]] to be enabled; see that page for more information.
== Example: multi-page backgrounded text ==
</context>
== backgroundoffset Background Offset ==
The options left, right, top, bottomoffset can be replaced by backgroundoffset yielding a different result:
</context>
== Underlining with Text Backgrounds == Underlining is generally frowned upon by experienced TeXnicians. Occasionally,however, it is necessary and <cmd>ul</cmd> or <cmd>underbar</cmd> doesn’t do what you want. In thosecases using <cmd>definetextbackground</cmd> for the underlining may also be tried. <context source="yes">\definetextbackground[underline] [location=text,alternative=1,background=,frame=off]\definestartstop[underline] [before={\starttextbackground[underline]}, after=\stoptextbackground] An example with \startunderline underlined\stopunderline\ text.</context> If desired, the location of the line can also be adjusted. <context source="yes">\startuseMPgraphic{mpos:par:columnset} % Shift underlining down a touch \iftracepositions show_multi_pars \else draw_multi_pars \fi ; path p ; p := boundingbox currentpicture ; currentpicture := currentpicture shifted (0,-StrutDepth/3) ; setbounds currentpicture to p ;\stopuseMPgraphic\definetextbackground[underline] [location=text,alternative=1,background=,frame=off]\definestartstop[underline] [before={\starttextbackground[underline]}, after=\stoptextbackground]An example with \startunderline underlined\stopunderline\ text.</context> === Example: dashed underbar ===(by WS, 4/2011) ==
<context source="yes">
\stopdashed
</context>
== What if textbackground doesn’t work? (MkII) ==
The textbackground commands require [[write18]] to be enabled; see that page for more information.
