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Scroll Zoom in 16.5

cgilson33

I just installed Allegro 16.5 on a new PC. I cannot use the scroll wheel to zoom in very well.  If i scroll up (zoom in) over and over it will eventually jump to a zoomed in veiw but if i try to zoom in again from there it jumps back out all the way.  If i manually zoom in it will zoom out correctly with the scroll wheel. I have tried/checked the following...

Playing with mouse settings - Same mouse as old computer (Microsoft wireless optical #1008 - No change

Set design size larger - No change

Env Variables - set  buttonfactor = 1

User Pref, Display, Roam, roaminc = 96 (tried 95 and 97 randomly with no effect)

 

I had no zooming issues on my old PC. 

Any thoughts? Other settings I should be checking?

  • mcatramb91
    Hello,

    I have seen this before and you will need to adjust the Mouse Wheel setting to correct the issue.  I believe this started to occur on Windows 7 because I have never seen it prior to upgrade.

    First off make sure you have the latest driver for the mouse then modify the Mouse Wheel settings as follows:

    1. Under the Control Panel find the Mouse Icon and go into the Mouse Properties (depending on your Control Panel view you may need to push down a level by clicking Hardware and Sound)
    2. Under the Wheel Tab: Select “Identify programs that don’t scroll correctly” link then manually add in the Allegro executable using this path “%CDSROOT%\tools\pcb\bin\allegro.exe”
    3. Under the Buttons tab: Change the Wheel button to “Middle-Click”, instead of “Flip (Default)”


    Hope this helps,

    Mike Catrambone
    Plexus Engineering Solutions

     
  • cgilson33

    Worked great!

    Thanks!

    Yeah prob should have mentioned i moved to Win7

    Mine already had Middle-Click (Default) as the default, but adding Allegro seems to fix the problems

    Thanks again!

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