Rejigging DispatcherWindow API a bit
Rejigging DispatcherWindow API a bit

cedriclaunay/gaffer,lucienfostier/gaffer,boberfly/gaffer,johnhaddon/gaffer,chippey/gaffer,goddardl/gaffer,andrewkaufman/gaffer,cedriclaunay/gaffer,andrewkaufman/gaffer,hradec/gaffer,appleseedhq/gaffer,ivanimanishi/gaffer,boberfly/gaffer,ivanimanishi/gaffer,hradec/gaffer,lucienfostier/gaffer,ImageEngine/gaffer,boberfly/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,ivanimanishi/gaffer,cedriclaunay/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,johnhaddon/gaffer,goddardl/gaffer,chippey/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,boberfly/gaffer,ImageEngine/gaffer,hradec/gaffer,chippey/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,goddardl/gaffer,hradec/gaffer,chippey/gaffer,cedriclaunay/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,goddardl/gaffer,ivanimanishi/gaffer,GafferHQ/gaffer,hradec/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,johnhaddon/gaffer