More context is in previous messages, but here is the patch for ConTeXt to make scripting multimedia possible: --- a/tex/context/base/mkxl/lpdf-wid.lmt +++ b/tex/context/base/mkxl/lpdf-wid.lmt @@ -649,6 +649,7 @@ local function insertrenderingwindow(specification) Subtype = pdfconstant("Screen"), P = pdfreference(pdfpagereference(page)), A = a, -- needed in order to make the annotation clickable (i.e. don't bark) + T = pdfunicode(label), -- title (for JS) Border = bs, C = bc, AA = actions, @@ -693,7 +694,7 @@ local function insertrendering(specification) -- } -- } local parameters = pdfdictionary { - Type = pdfconstant(MediaPermissions), + Type = pdfconstant("MediaPermissions"), TF = pdfstring("TEMPALWAYS"), -- TEMPNEVER TEMPEXTRACT TEMPACCESS TEMPALWAYS / needed for acrobat/wmp } local descriptor = pdfdictionary { @@ -723,7 +724,7 @@ local function insertrendering(specification) local rendition = pdfdictionary { Type = pdfconstant("Rendition"), S = pdfconstant("MR"), - N = label, + N = pdfunicode(label), C = pdfreference(pdfflushobject(clip)), } mf[label] = pdfreference(pdfflushobject(rendition)) @@ -761,6 +762,20 @@ function codeinjections.processrendering(label) end end +-- needed mapping for access from JS +local function flushrenderings() + if next(mf) then + local r = pdfarray() + for label, reference in sortedhash(mf) do + r[#r+1] = pdfunicode(label) + r[#r+1] = reference -- already a reference + end + lpdf.addtonames("Renditions",pdfreference(pdfflushobject(pdfdictionary{ Names = r }))) + end +end + +lpdf.registerdocumentfinalizer(flushrenderings,"renderings") + function codeinjections.insertrenderingwindow(specification) local label = specification.label codeinjections.processrendering(label) The patch is also be available here https://github.com/vlasakm/context-mirror/commit/99f81beae0d13f1aecc20be187a... until it is applied (for full file download, which is available under the three dots next to the file name). The created Screen annotation will be given the title, that corresponds to the second \placerenderingwindow parameter. So here: \definerenderingwindow[soundplace] [width=0pt, height=0pt] \useexternalrendering[mainsound][audio/mp3][sound.mp3][embed=yes] \placerenderingwindow[soundplace][mainsound] both the screen annotation and rendition are available under the name "mainsound". The name "soundplace" can be anything (even "mainsound"), it doesn't propagate to the PDF file in any way. And here is the patch required to make Pablo's example work: --- a/pablo.tex +++ b/pablo.tex @@ -7,8 +7,10 @@ function GoToFirstSlide(label) { this.pageNum = 0 ; var rendition = this.media.getRendition(label) ; +var screen = this.media.getAnnot({nPage: 0, cAnnotTitle: label}) ; var player = app.media.openPlayer({ rendition: rendition, + annot: screen, }); } The second possibility I proposed previously is not as general, and implementing it is not worth, until it is really needed (which I presume won't happen). Michal Vlasák