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Thread: establishing signal-slot connections between widgets in the same form with QtDesigner

  1. #1
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    Default establishing signal-slot connections between widgets in the same form with QtDesigner

    Hi!
    I was going throw the example of "shape-changing dialog" in the "C++ GUI programming with Qt 4, Jasmin Blanchet, Mark Summerfield".
    As the dialog is not "shape-changing" e created a simple one with 3 buttons:
    • Button X
    • Button Cancel
    • Button Ok

    I seted the enabled property of the "Button Ok" to false.
    I wish that it becomes enable when i press "Button X".

    I entered "signals/slots" and connected this way:
    "Button X" signal clicked() to slot ???????

    Showld't there be a "enabled" option?

    Thanks

  2. #2
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    Default Re: establishing signal-slot connections between widgets in the same form with QtDesi

    Yes, there is QWidget::setEnabled(bool). But notice that it takes a bool parameter, and button has signals with a bool parameter only if it's checkable. So you can either make "Button X" checkable or you have to do it in code within an intermediate slot.
    J-P Nurmi

  3. The following user says thank you to jpn for this useful post:

    gt.beta2 (12th February 2009)

  4. #3
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    Default Re: establishing signal-slot connections between widgets in the same form with QtDesi

    I get the point.
    Thanks

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