[solved] Pointer resetting to center of screen

Comments

• sebastiaan

  March 2015 edited 9:33PM

  Hi,

  This sometimes happens (I'm not sure why), when using the xpyriment back-end in fullscreen. The easiest way around this is probably to switch to the legacy back-end, unless you have a specific reason not to. This will also make the forms run more smoothly.

  Does that answer your question?

  Cheers,
  Sebastiaan

  
  
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• aem

  April 2015 edited 9:33PM

  Hi Sebastiaan,

  I'm already using the legacy back-end. Any other ideas?

  Thanks!
• sebastiaan

  April 2015 edited 9:33PM

  Hi,

  Really? In that case you could see what happens when you change the canvas back-end settings (in the General tab under Back-end settings). For example, what happens if you set Double buffering to yes, and/ or Hardware surface to no?

  And this problem only occurs when running full screen, probably, is that right?

  Cheers,
  Sebastiaan

  
  
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• aem

  April 2015 edited 9:33PM

  This problem still occurs when Double buffering is set to yes and Hardware surface is set to no. And yes, this problem only occurs when running full screen. Any other settings you'd recommend changing?

  Thanks.
• aem

  April 2015 edited 9:33PM

  To clarify, changing Hardware surface to 'no' does appear to reduce the frequency with which the pointer resets to center, but it still occurs.

  Thanks.
• sebastiaan

  April 2015 edited 9:33PM

  Well, if the problem doesn't occur in window mode, you could run your experiment in a window that covers the entire screen. You can do that by:

  • setting the window position to "0,0"; and
  • setting "Draw window frame" to "no" under the legacy back-end settings; and
  • setting the experiment resolution to the resolution of your display.

  Then, if you run the experiment in a window, it will look like it's full screen, even though it's sneakily being a window.

  
  
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• aem

  April 2015 edited 9:33PM

  Thanks! This works!