No values from QSlider ?

[akejohan]

I try to use slider to set RGB values 0-255 that i will send via udp to my microcontroller but I am unable to get any values from my QSliders.

I created an QSlider named redSlider in QT designer I set min and max values and
the slider is enabled.
In Q7Basic MainWindow.QMainWindow i enter the following code:

Outlet red_label As QLabel
Outlet redSlider As QSlider
Signal on_redSlider_sliderMoved(red_value As Integer )
' Dim red_value As Integer
'red_value_slider = 125
Dim red_string As String
red_string = ( Str (red_value))
red_label.Text = red_string
End Signal

The program never enter the Signal on_redSlider_sliderMoved().
I also tryed Signal on_redSlider_valueChanged() but the program never enter to this signal.

How can this problem be solved?

[Henning]

This works.

Code: Select all

' this is the mainwindow scope
Outlet red_Slider As QSlider

Outlet red_label As QLabel


Signal on_red_Slider_sliderMoved(Value As Integer)
   red_label.text = String(Value)
End Signal



/Henning

[akejohan]

Hi Henning, Thank you for your reply. I tryed your code but i still can't get any values. When I debug my code i never enter in to the
Signal on_redSlider_sliderMoved(Value As Integer) it seems that this is wrong signal ? Any idea?

[Slowdown]

QSlider example,
it's the same as Henning posted but now a complete project.

QSlider.zip

(1.51 KiB) Downloaded 56 times

[Slowdown]

Better use this in the example above,

Code: Select all

Signal on_Hor_Slider_valueChanged(Value As Integer)
  Hor_Label.text = String(Value)
End Signal


Signal : sliderMoved (Value As Integer) only returns a value if Slider Button is clicked and hold-down by the mouse.

[akejohan]

Thank you for your reply I have tryed to open your project in Q7Basic windows version but I can't.
I opend in ubuntu 12.10 but when I run the project the window never opens.
Everything looks ok in devekopment mode but when I run the project no window opens.
Do I have to compile Q7Basic in Ubuntu?
How do you run a project in linux?

I am going to use this project in windows.
Maybe you could send a version that I can run on windows platform?

Thank you.
Best regards
akejohan

[Slowdown]

Hi akejohan,

I wrote the small example using Q7B with Ubuntu 12.04 64bit.
The same code is running fine with Q7B with Windows XP.
Can you run any of the examples ?

Do I have to compile Q7Basic in Ubuntu?

If you use Ubuntu 64 bit use http://www.q7basic.org/64bit_Ubuntu_Q7Basic.zip
and when using the 32 bit version you can use http://www.q7basic.org/Q7Basic.tar.gz or http://www.q7basic.org/Q7Basic_Mandriva.zip
I have messed up my Ubuntu 12.04 32 bit installation so i can't test it for you.
You can compile Q7B yourself but you must have Qt 4.7 or higher installed and don't forget the phonon libs.

[Henning]

All is running fine here in XP.

/Henning

[Slowdown]

Thanks Henning.

Will re-install tonight Ubuntu 12.10 32 bit.
After that i check the binary's from the Q7B download page and report back.
If they are not working i'll compile a 32 bit Ubuntu version perhaps in that case is Bernd willing to provide it on Q7B.

[akejohan]

I just want you to know that I run on Windows 7 32 bit.
I created a new project and I added only one vertical slider and one label to my project. But I still get no values from QSlider.
I can set Enable to True and False with pushbuttons.

Regards
akejohan