On Monday 25 July 2005 12:38 pm, Zeeshan Ali wrote:
> Hello,
>
> > Expose is no problem, but what about when it is hid? basically I
> > want to know when the window is hid, so I don't draw to it.
>
> If you only want to check if a widget is visible or not at a
> particular time, you'll need to check for the 'visible' property of
> the widget. Moreover, 'expose' signal is called for both the cases
> (show and hide). If you choose to go the 'expose' way then connect
> your handler using g_signal_connect_after().
Nice tip, but unfortunately the expose event does not signal when the object
is covered up. Only when revealed. I even hooked "event" and "event-after"
and nothing was emitted when I covered up the window. Only events were
triggered when I moved the mouse into the window and out of it and clicks.
The code is doing the following...
Runs an external process in a thread and what I want is that when the
window
is covered up, I want to pause the external process (I can do this via a
pipe). When the window is revealed I want the external process to continue
on. Which I then can send it another signal via the pipe. So the code is not
a loop while it is paused. So I can't check at a regular interval to wake it
up.
I was hoping I could get signals to tell me when the window was revealed or
not so that I could pause for example when a screen saver is kicked off. Or
someone switches to another window because something more important came up.
Kevin
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