dialog box

[johndoe777]

I have been trying to write a simple script to use with kvm that uses the program dialog. For some reason it doesn't work for me. I am using debian wheezy but have installed kernel 3.14 amd64. I also altered my shell prompt to give me the exit status of my commands I write at the prompt and for some reason I get a return of 0 for exit status but can't see any dialog boxes. Here is the script I am using:

#!/bin/bash

#this will launch your virtual machines with a graphical menu
#in your terminal

cd /home/username/Qemu # my directory that stores virtual drives

dialogue --backtitle "KVM Virtualization Launcher" --title "Main\
Menu" --menu "Move using [UP] [DOWN], [ENTER] to Select" 15 50 10\
deb1_HDA.img "Launches deb1"\
deb2_HDA.img "Launches deb2"\
deb3_HDA.img "Launches deb3" 2>/tmp/menuitem.$$

menuitem=`cat /tmp/menuitem.$$`


case $menuitem in
deb1_HDA.img) kvm -hda deb1_HDA.img -m 256 -smp 2 -net nic -net tap,ifname=tap0,script=no,downscript=no;;
deb2_HDA.img) kvm -hda deb2_HDA.img -m 256 -smp 2 -net nic -net tap,ifname=tap0,script=no,downscript=no;;
deb3_HDA.img) kvm -hda deb3_HDA.img -m 256 -smp 2 -net nic -net tap,ifname=tap0,script=no,downscript=no;;
esac

I installed dialog with $ apt-get install dialog and I made this script executable with chmod +x virt-launcher.sh
this is what my prompt looks like:
0 11:46:45 <username>@:~$ the zero at the beginning tells me normally that the command I run is OK any other number and something is wrong

[BowCatShot]

Try something really simple such as

/usr/bin/kdialog --msgbox "This dialog works"

If that doesn't work then dialog may not have been installed properly

[saulgoode]

... and for some reason I get a return of 0 for exit status but can't see any dialog boxes.

The 'case' statement itself will return a status of zero if none of the patterns are matched. Since you are not seeing a dialog and the return is apparently zero, you should double check this.

[slackguy]

zenity works real easy. tk too (i think they are becoming tied to the mswin world?)

i'm sure kv is good but sometimes it's better not to beat yourself over the head on one free app that is temporarily not working and just use what is working

[slackguy]

debian installs perl early on in installation (always there, works well) and perl is quite a nifty language - and has modules to load for GUI user interface

[Issyer]

Menu" --menu "Move using [UP] [DOWN], [ENTER] to Select" 15 50 10\

If you know exact values why do you need any dialogs? You might want to try my LauncherBox.



http://webguelph.blogspot.ca/p/qlauncherbox-10.html

As for the dialogs, PyQt is pretty simple.

Code: Select all

import sys
from PyQt4 import QtGui

def main():	
	app = QtGui.QApplication(sys.argv)
	w = QtGui.QWidget()
	
	s='Hello'

	QtGui.QMessageBox.about(w, "Alert", s)
	sys.exit(app.exec_())

if __name__ == '__main__':
	main()

apt-get install python-qt4

[BowCatShot]

Here's one taken from my crontab. Without the env DISPLAY=:0.0, no dialog would be displayed.


env DISPLAY=:0.0 /usr/bin/kdialog --msgbox "Hello World"