sure it might seem a mistake. but ardour's only do that for LV2 GUIs (via libSUIL and X11/Embed). otoh. qtractor runs DSSI and VST which cannot have benefit of that alien widget embedding. well qtractor could do that too but again it would only work for the LV2 GUIs on Qt4/Gtk/X11+. it can't NEVER do that for DSSI GUIs that's an absolute certainty. sad but true.
re. back to zynaddsubfx case, you must know that the zyn GUI _is_ the standalone application. it's not accessible nor provided by the zyn plugin instance (be that a DSSI or possibly LV2), so you won't see its fancy GUI from it. ever. if you wish to edit any of zyn's parameters and all that paraphernalia you must work with the standalone zynaddsubfx application. the plugin just let you access the (pre)defined instrument patches, banks or programs, through qtractor's MIDI track properties dialog. all else is hidden to you. so there's nothing to see there. it is not qtractor's fault. sorry to tell :)
sure it might seem a mistake. but ardour's only do that for LV2 GUIs (via libSUIL and X11/Embed). otoh. qtractor runs DSSI and VST which cannot have benefit of that alien widget embedding. well qtractor could do that too but again it would only work for the LV2 GUIs on Qt4/Gtk/X11+. it can't NEVER do that for DSSI GUIs that's an absolute certainty. sad but true.
re. back to zynaddsubfx case, you must know that the zyn GUI _is_ the standalone application. it's not accessible nor provided by the zyn plugin instance (be that a DSSI or possibly LV2), so you won't see its fancy GUI from it. ever. if you wish to edit any of zyn's parameters and all that paraphernalia you must work with the standalone zynaddsubfx application. the plugin just let you access the (pre)defined instrument patches, banks or programs, through qtractor's MIDI track properties dialog. all else is hidden to you. so there's nothing to see there. it is not qtractor's fault. sorry to tell :)
cheers