Doesn't see invoke (beginInvoke) in context, how to fix it?

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    The library you need, it seems to be connected ...
    Neither Invoke nor beginInvoke sees
    C# Ryan Alvarez, Feb 16, 2019

  • 2 Answers
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    For WPF:


    And no additional libraries need to be connected, it is enough:
    using System.Windows;
    Hanna Clayton

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    And if you press the "light", which is yellow at the beginning of the line?

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