Available in LEADTOOLS Vector Imaging toolkits.
The Realize member function can be used to rasterize a vector image into a Bitmap. Other functions can be used to convert vector images from the native format to EMF and/or WMF objects:
LVectorBase::Realize
LVectorBase::ConvertToEMF
LVectorBase::ConvertFromEMF
LVectorBase::ConvertToWMF
LVectorBase::ConvertFromWMF