![]() ![]() Please note that the burger.wmf and computer_mail.emf files are available inside the LibreOffice source. To be able to dump a metafile, you should do this: $ git clone It reads the binary files WMF, EMF, EMF+ in addition to DOC, PPT, XLS and other Microsoft formats, and dumps it as xml. The mso-dumper is an in-house developed tool created and used by LibreOffice developers to dump information from the Microsoft binary formats. We discuss three useful tools among others: mso-dumper, limerest and mtf-demo. Tools for Working with Metafile FormatsĪs the metafile formats are binary files, you will need tools to be able to work with these formats. For the output filter, vcl/source/filter/wmf is the place to look at. Other than reading, LibreOffice can write metafile formats as the output. Once the GDIMetafile object is read to be used, you can “play” the metafile, “pause” it, “wind forward” or “rewind” the metafile. You can also populate your own GDIMetaFile via AddAction(), RemoveAction(), ReplaceAction(), etc. This reads in the metafile into the GDIMetafile object – it can read in an old-style VCLMTF metafile (back in the days that Microsoft didn’t document the metafile format this was used), as well as EMF+ files – and adds them to a list (vector) of MetaActions. The GDIMetaFile class reads, writes, manipulates and replays metafiles via the VCL module.Ī typical use case is to initialize a new GDIMetaFile, open the actual stored metafile and read it in via GDIMetaFile::Read( aIStream ). You can take a look at emfio/source/reader to see the main source files, wmfreader.cxx and emfreader.cxx in which rely on mtftools.cxx.Īn important class which is used here is the GDIMetaFile class, which is described in the vcl/ as: It essentially translates these records into the mataactions. The emfio module of LibreOffice handles reading of the metafile records. For example, you can have WMF inside a DOC or DOCX file, or in native ODT format of LibreOffice. It is also possible to use them as the images inside another formats. The oldest metafile format is WMF, which goes back to Windows 3.1 during 1990s, but EMF and EMF+ are newer formats and support many new features. ![]()
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