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Word Object Model / OpenXML

Brett Clouser. Word Object Model / OpenXML. OpenXML : What is it?. XML-based file format which describes documents, presentations, spreadsheets, etc. Replacement for binary file formats used in previous versions of Office. Why use OpenXML ?. Readable – plaintext representation

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Word Object Model / OpenXML

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  1. Brett Clouser Word Object Model / OpenXML

  2. OpenXML: What is it? • XML-based file format which describes documents, presentations, spreadsheets, etc. • Replacement for binary file formats used in previous versions of Office

  3. Why use OpenXML? • Readable – plaintext representation • Smaller - compressed as a ZIP archive • Straightforward - images are respresented within <pic> tags • All the benefits of regular XML!

  4. Docx Structure (Containers) • Paragraph <w:p> • Most basic unit • One for each line break in the document • Container element • Run <w:r> • Region of content with a common set of properties • All runs must be contained within a paragraph

  5. Docx Structure (Root Elements) • Text <w:t> • Basic block of text • Normal formatting can be applied through formatting tags (i.e. <w:b> for bold) • Must be contained within a run • Images <w:pic> • Pictures, Clipart, Smartart, Shapes, charts, etc. • Additional transformations can be applied to the base image (rotation, reflection, etc.)

  6. Docx Structure (example) This is bold text. <w:p> <w:r> <w:t>This is </w:t> </w:r> <w:r> <w:rPr><w:b /></w:pr> <w:t>bold </w:t> </w:r> <w:r> <w:t>text.</w:t> </w:r> </w:p>

  7. Dissecting a Word 2007 Document • Demo

  8. Working with OpenXML documents • Microsoft SDK for OpenXML • Provides strong bindings for accessing document parts • Allows developer to create or change documents without having Word open • Word Object Model • Coming up next…

  9. Office Plugins • Visual Studio Tools for Office (VSTO) • Add-on for Visual Studio 2005 • Develop Office add-ins just like any other application • Use WYSIWYG editor to create GUI • Access the document through the Word object model

  10. Word Object Model

  11. Word Object Model • InlineShapes • Collection of references to all images in the document • Paragraphs • Directly correspond to OpenXML <w:p> tags • Ranges • Contiguous area in document • Can access actual text of document through Text property

  12. Creating a plugin demo • Visual Studio Tools for Office Demo

  13. How we’re using it… • OpenXML SDK to parse the document/presentation for accessibility errors • VSTO SE to create an addin that checks accessibility • Word Object Model to highlight regions of text and manipulate the document

  14. Conclusions • Any questions?

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