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I want to control windows via Window manager controls (wmctrl).

I am able to successfully switch between qml application windows using wmctrl commands on the Ubuntu Desktop.

But I am running same applications on Ubuntu Touch Nexus tablet. It results in an error as shown

"Cannot open display".

Does Ubuntu Touch supports the window management? How to achieve this?

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Anyone has info on this? – harisha Nov 21 '13 at 5:14
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wmctrl is a UNIX/Linux command line tool to interact with an EWMH/NetWM compatible X Window Manager.

Ubuntu Desktop still uses compiz as its compositing window manager, which talks to X server. so wmctl is applicable.

while Ubuntu Touch is moving towards a new graphics infrastructure based on mir, which is a replacement for X server. So there's no X11 stuff on Ubuntu Touch, no DISPLAY environment variable.

wmctl expects the X11 DISPLAY environment variable and it complains "Cannot open display" when it's not there.

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Thanks for your input. Reading on Mir, I found something called Shell which provides application window management. But I could not find much info on API or commands available. Is Mir available ? – harisha Jan 26 '14 at 11:41
    
Unity8 is going to be the 'Shell'. it's currently only available on Ubuntu Touch. Ubuntu's Mir convergence won't happen before Ubuntu 14.10. – sgx1 Jan 26 '14 at 13:34

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