Fixing a metal bureau front door? This is a metal framed glass swinging door next to some miles....

This is a metal framed glass swinging door next to some miles. It has an adjustment screw which I cannot numeral out. Right now the door does not want to close centered on the preserve, but instead wants to finish 6 inches rotten center. Does anyone know how to adjust this kind of door?

I cannot identify a brand heading on the door anywhere.
How does rainfall rationale pot holes?
Answers:    you have to final the adjustment screw out to allow the center pin to 'float freely '

then near the door in place hoist up on it enough to verbs the pin where you want it and retighten the set screw it is a trial and error process but really doesnt embezzle long once you figure out how much you are have to compensate for on a couple tries