<p>I want my Qt application to be able to save simple vector graphics to clipboard in a compatible way. On windows I want to be able to paste the graphics into Microsoft Word or Powerpoint. On Linux I want to be compatible with the Open Office. </p>

<p>Which format would you recommend? Can Qt generate EMF in an easy way? Is SVG an option?</p>

<p>Update:</p>

<p>My current plan is to add a piece of native win32 code to render the graphics to emf on windows. This code will not be available on linux. </p>

The QGraphicsView
class and its associated helpers can render to a QT metafile format through the
QPicture
class (for which you could write a translator to EMF), to SVG through the
QSVGGenerator
class and to postscript/pdf through
QPrinter
.  It can also render to bitmap formats and various other targets.
AFAIK it doesn't have a generic 'render to EMF' facility - you would have to write to something else like the QT Metafile and convert to EMF.  If you only need a subset of the graphics primitives you might only need to support that subset in the translator.  Otherwise you could go from SVG, which you can get directly from QT through QSVGGenerator.