[Chimera-users] Picking not working in RDS

Tom Goddard goddard at sonic.net
Mon Mar 30 16:51:43 PDT 2015

Hi Darrell,

  When you ctrl-left-click in Chimera the mouse pointer changes to a hand with the index finger pointing to the left while you hold the mouse down.  I guess that is what you mean when you say you see the cursor change to the hand.  That would indicate that Chimera does get the ctrl-click mouse event.  So one idea is that Chimera gets the ctrl-click but the x,y coordinates of the click reported to Chimera are wrong so it doesn’t select anything.  As a test of this you could select everything (Select / Select All) then try a ctrl-click to select something and see if that deselects everything, as if the click was on the background.  It seems unlikely the mouse pointer position could be reported wrong since that would probably make pressing on menus and buttons not work as well.  Another test, when you ctrl-left-drag Chimera draws a green outline box — does that appear?  Another idea is that Chimera gets the ctrl-click but in never gets the mouse release when it actually does the selection.  Have you tested that ctrl-click select actually works on the Windows machine?  If Windows falls back to the archaic Microsoft GDI graphics driver, then I believe ctrl-click does not work.  You can find out what driver Chimera is using with Chimera menu entry Help / Report a Bug… under “Gathered Information”.  One last thing to check.  When you hover the mouse over and atom, a popup window shows the name of the atom.  That uses the same Chimera code as ctrl-click selection to figure out what atom the pointer is over.  Does that work?


> On Mar 30, 2015, at 3:50 PM, Hurt, Darrell (NIH/NIAID) [E]  wrote:
> Hi Chimera friends,
> I'm using the Microsoft Remote Desktop Mac client to connect to a Microsoft Remote Desktop Server (an "RDS" running Windows Server 2012 R2). That RDS is serving out a Windows 8 environment and I'm running the latest Chimera release in it very successfully. Except that selection by picking (Ctrl-mouse_button_1) and centering (Ctrl-mouse_button_3) does NOT work. When I try to select by picking, the cursor changes from the arrow to hand momentarily. I also get this behavior when connecting to the RDS via any other client. Any thoughts on what might be happening and how to fix it?
> Thanks,
> Darrell
> --
> Darrell Hurt, Ph.D.
> Acting Chief
> Bioinformatics and Computational Biosciences Branch (BCBB)
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