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Asked: 2026-05-10T21:47:09+00:00

I implementing a EventQueue and get notified when AWTEvents are send. I wait till

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I implementing a EventQueue and get notified when AWTEvents are send. I wait till instances of FocusEvent are send to the dispatchEvent methode.

The FocusEvent by itself does not have a methode to ask if the focus of the component is gained or lost. The methode paramString returns a String in which the information is placed, but i dont want to hack or pars the String. A contains call can give me the answer, but the returnes String is no constant, so it could change in the future.

The paramString methode of FocusEvent is like:

 switch(id) {       case FOCUS_GAINED:           typeStr = 'FOCUS_GAINED';           break;       case FOCUS_LOST:           typeStr = 'FOCUS_LOST';           break;       default:           typeStr = 'unknown type';     }     return typeStr + (temporary ? ',temporary' : ',permanent') +         ',opposite=' + getOppositeComponent();

Do you know another solution for this issue.

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1 Answer

  1. What’s wrong with ‘evt.getID()’? It returns FOCUS_LOST or FOCUS_GAINED?

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