GtkHScale as an Active Control

[rgljr]

I'm trying to use GtkHScale in an application to control a network device.

Think of it as a Volume Control.

I can't seem to find an example of what I want to do.

Is there a Callback function for when a GtkHScale has stopped moving or is being moved.

I know how to get a value from the control if the user clicks a regular button to indicate that GtkHScale is set to the desired value, but I would like to make it an active control Similar to a Volume control would be actively controling the volume of an amplifier.

I know I could do this with a timer function but I thought there might be a callback to indicate that the control is moving or has been moved and I can't seem to find it or a clue to it in the PHP-GTK2 Documentation.

An example would be great!

Thanks in advance for any help.

[kksou]

Have wrote two sample codes here:

http://www.kksou.com/php-gtk2/articles/set-up-volume-control---Part-1---using-GtkVScale.php

http://www.kksou.com/php-gtk2/articles/set-up-volume-control---Part-2---using-GtkHScale.php

Hope it's what you have in mind.

Regards,
/kksou

p.s. I thought these are simple widgets. Turns out that there are quite a number of tweaks here and there (in GtkScale, GtkRange and GtkAdjustment) that allow one to do very precise control. For example, what if you would like to add some spacing between the scale and the value? Or if you would like to change the font of the value? I will try to come out with a couple more examples in part 3 and 4.