I'm using raspberry pi 3B+ with Waveshare 5 inch Resistive Touch Screen LCD, HDMI.
I have created a simple desktop application using qt creator with a button on the middle of the screen. I have deployed the app to my raspberry pi and I can interact with it using the touch screen, everything works fine but when I press the button (or the screen at any point) is like I'm pressing the icons on desktop and when I close the app the desktop is full of applications and programs.
How I can prevent this?
Related
I'm creating an A-Frame VR code program in Glitch.com
I'm told that I can use my smartphone iPhone like a VR Device.
How do I do that from the Show mode in Glitch.com?
Go to the show mode on your computer or whichever device you are working on. Click on the share menu directly below it and go to
live app
Copy that link (which will be a name of your choosing)
and open that on your iPhone. You will need google cardboard to access it.
I have a web app that is packaged with Electron to run on Macs, but for some reason on one of our Macs, the application isn't clearing parts of the screen when updates occur.
For example, we have an animated gif of a robot that waves his arm up and down. On the Mac, his arm is displayed in both places (as if both frames are being rendered on top of one another). The robot is also moved between being large and centered and being small and in a corner, but when this transition happens, the large robot sticks to the center of the screen (as well as in the corner where it's supposed to be) for a few seconds before being cleared.
The Mac is running OSX 10.10.5.
I'm not experiencing this issue in the Web, Windows, Linux, iOS, or Android builds.
When I start embedded Qt GUI application from a serial port or a terminal via SSH, then type input from wireless USB keyboard, I almost cannot see input on console screen. I have set
export QWS_KEYBOAD=TTY:/dev/tty1
or
export QWS_KEYBOAD=linuxinput:/dev/input/event2
for
/dev/input/by-path/platform-ehci-omap.0-usb-0:2.2:1.0-event-kbd -> ../event2, it doesn't work too.
But If I start my application from console screen which is /dev/tty1, it works fine.
My issue is my application starts automatically after reboot, it doesn't respond to keyboard input. Any ideas?
My plan is to run a JavaFx application on a Raspberry Pi. While the usual way is to start the GUI which is then redirected to the HDMI port, which presents the whole of desktop on the TV.
However, I do not want to see the desktop or anything else, other than the content rendered by my application on the TV. Is it possible to send the rendered output directly to HDMI port?
Yes you need the arm port of java8, where fx renders directly into the framebuffer.
How do you test the application icon in the Nokia Qt SDK Simulator? The one which starts when u run the the application from within the Qt Creator.
I like to see how it works & how the sizing works out, but seems there is no App Launcher process as there is in iPhone/Android. Any hints?
If what you want is to have a view of the device menu from which you can launch your app by pressing its icon the simulator doesn't provide a feature like that.
If you want to test your app in a more real enviroment or in device that you don't have maybe the Forum Nokia Remote Device Access could help you.