I have a sainsmart eGalax 7" touchscreen set up and calibrated on my Pi, which is running Raspbian. The Pi is acting as a control screen for a web application. I running kweb in kiosk mode to view the webpages. It works OK, but some clicks do not register, or are registered as click and drag rather than a single click.
I only need single left clicks for the web application. I'd like to disable click and drag and have the Pi interpret any click and release as a left click regardless of how far the cursor has moved. Is there any way of doing this? Also, are there any settings that can be adjusted to make the touchscreen more sensitive to clicks?
Thanks!
Re: Any way to disable click and drag on touchscreen?
I'm interested in this as well. I am constantly having users accidentally drag when they are clicking. This causes unwanted highlighting and other problems.
Re: Any way to disable click and drag on touchscreen?
I found a partial solution that will at least stop text being inadvertently highlighted by the user if you are building a web app. You can add the following text to your CSS for body:
I got the code from this stack overflow answer: http://stackoverflow.com/questions/1319 ... text-table
Code: Select all
-webkit-touch-callout: none;
-webkit-user-select:
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
Re: Any way to disable click and drag on touchscreen?
I found a solution to this http://stackoverflow.com/questions/7045 ... l-elements
You add the following properties to the body of the webpage
You add the following properties to the body of the webpage
Code: Select all
<BODY ondragstart="return false;" ondrop="return false;">Re: Any way to disable click and drag on touchscreen?
Hi,
Is there a way to disable click and drag as a general setting (i.e. not only for some web applications)?
It would be great if I had to double-click & drag in order to reproduce the current behavior of a single click & drag. As such,, pressing the finger on the screen, followed by the motion of the finger on the screen would only move the cursor instead of dragging whatever was below the finger press.
Thanks!
Is there a way to disable click and drag as a general setting (i.e. not only for some web applications)?
It would be great if I had to double-click & drag in order to reproduce the current behavior of a single click & drag. As such,, pressing the finger on the screen, followed by the motion of the finger on the screen would only move the cursor instead of dragging whatever was below the finger press.
Thanks!
Re: Any way to disable click and drag on touchscreen?
Anyone has been able to find a solution for this issue (a way to interpret a touch on the screen as a single left click instead of a left click and then drag)?