Here is a list of all namespace enums with links to the namespace documentation for each enum:

Attribute : gdcm::terminal
Color : gdcm::terminal
CompOperators : gdcm
ECharSet : gdcm
EEventID : gdcm::network
ENQueryType : gdcm
EQueryLevel : gdcm
EQueryType : gdcm
ERootType : gdcm
EStateID : gdcm::network
LodModeType : gdcm
Mode : gdcm::terminal