swing - Java Glass pane -

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i have problem. want ask how can implement glasspane paint on it.

i mean, if click mouse button, in mouseclicked event, transparent glass pane should created, because want see components behind glasspane , can paint on using mousedragged event. when release mouse button glasspane disappears.

i have question too. when paint on glass pane components behind them refreshing , repainting? maybe have nice example glass pane might me.

how create translucent , shaped windows


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