Howto: Observing a widget - Motif

This is a discussion on Howto: Observing a widget - Motif ; 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 ...

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Thread: Howto: Observing a widget

  1. Howto: Observing a widget

    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

  2. Re: Howto: Observing a widget

    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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