Howto: Observing a widget - Motif

unix · #1 10-28-2008, 12:50 PM

Hi,

is it possible to observe a widget?
One 3rd Party Component is accessing a widget
but it looks like that the access fails.

Is it possible to recognizing when a widget gets:

a) unmanage/managed
b) looses or receives a focus
c) and so on

can you help please?

kindly
Thomas

unix · #2 10-28-2008, 09:13 PM

On Oct 28, 5:50*am, Thomas Lehmann wrote:
> Hi,
>
> is it possible to observe a widget?
> One 3rd Party Component is accessing a widget
> but it looks like that the access fails.
>
> Is it possible to *recognizing when a widget gets:
>
> a) unmanage/managed
> b) looses or receives a focus
> c) and so on
>
> can you help please?
>

What do you mean that it looks like "the access fails"?
What do you mean by saying the component is accessing a widget?

Register an EventHandler on the widget (XtAddEventHandler)
to check for various things
use mask=StructureNotifyMask for manage/unmanage
use mask=FocusChangeMask for receiving focus
--
Fred Kleinschmidt

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