qt-5.7.1, gtk-3.0, input device

huojia

Does anyone occur to run a qt app and a gtk app together? I run a gtk app first, mouse and keyboard can work, then I run a qt app in backstage, I guess mouse and keyboard focus on the qt app now, cos the gtk app can't capture the mouse and keyboard event, and when I killed the qt app process, the gtk app works fine. BTW, they both run in fullscreen. Anyway, help !!! and thx in advance.

SGaist

Hi and welcome to devnet,

You have to give more details about your setup.

What Linux distribution are you running ?
What window manager ?
How do you start your applications ?

huojia

@SGaist said in qt-5.7.1, gtk-3.0, input device:

Linux distribution

oh, sorry, new here.
Actually, I'm running on a embedded device, it's a tidy linux filesystem and no gnome, window manager is X11.
This is how I start X11: /home/mybin/Xorg -pixmap32 vt13 -config /etc/X11/xorg.conf &; export DISPLAY=:0.0.
cat /etc/X11/xorg.conf:

This is a minimal sample config file, which can be copied to

/etc/X11/xorg.conf in order to make the Xorg server pick up

and load xf86-video-fbturbo driver installed in the system.

When troubleshooting, check /var/log/Xorg.0.log for the debugging

output and error messages.

Run "man fbturbo" to get additional information about the extra

configuration options for tuning the driver.

#bc debug don't use follow setcion.auto use evdev by /usr/share/X11/xorg.conf.d
#Section "InputDevice"

Identifier "Mouse0"

Driver "mouse"

Option "Device" "/dev/input/mice"

Option "CorePointer"

#EndSection

#Section "InputDevice"

Identifier "Keyboard0"

Driver "kbd"

Option "Device" "/dev/input/event2"

Option "XkbLayout" "us"

Option "XkbModel" "pc105"

Option "CoreKeyBoard"

#EndSection

Section "Monitor"
Identifier "Monitor0"
Option "DPMS" "false" #power of monitor

Modeline "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync

Modeline "1280x720" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync

EndSection

Section "Screen"
Identifier "Screen0"
Device "Allwinner A10/A13 FBDEV"
Monitor "Monitor0"

DefaultDepth 16

SubSection "Display"

Depth 16

Modes "1920x1080" "1280x720"

EndSubSection

EndSection

Section "Device"
Identifier "Allwinner A10/A13 FBDEV"
Driver "fbturbo"
Option "fbdev" "/dev/fb0"

    Option          "SwapbuffersWait" "true"
Option		"HWCursor" "false"

EndSection

Section "ServerFlags"
Option "DontZap" "True"
Option "DontVTSwitch" "True"

Option "BlankTime"	 "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime"	 "0"

EndSection

How I start applications :
./gtk-app-name
and then :
./qt-app-name &
and then :
killall qt-app-name

and if I start qt app first, like :
./qt-app-name &
and then :
./gtk-app-name
mouse can work for gtk app, but keyboard can't, and now I can sure that the keyboard still focus on the qt app.
Thank you for your reply.

huojia

What could cause qt app to monopolize the keyboard resource???
I run a simple qt app just to show a picture in fullscreen, and then run the gtk app, and no such problem.

huojia

setWindowModality(),,,exec(),,,what else?

SGaist

How did you compile Qt ?

It sounds like the Qt application only serves as some sort of splash screen.

Can you explain a bit more how your system should be working ?