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Editorial Team
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Asked: 2026-06-14T14:16:02+00:00

I have created a JFrame with a JSplitPane in it, which contains a canvas

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I have created a JFrame with a JSplitPane in it, which contains a canvas in the left and a JPanel in the right.
The canvas contains LWJGL display, and the JPanel has few JTextFields in it. The problem is that when I press a mouse button on the LWJGL display, I can’t write text into JTextFields anymore. When I minimize the application and return it back, it works until I press on the display again.

Why do i get this problem? How can i fix it?

Note: I can focus on the text fields, but i cant write anything. Maybe the LWJGL is somehow blocking Swings keyboard input?

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1 Answer

  1. Editorial Team

    By adding a java.awt.Canvas to a javax.swing.JSplitPane, you’re Mixing Heavyweight and Lightweight Components. As an alternative, you might try one of the approaches mentioned here.

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