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Thread: transparent qcombobox?

  1. #1
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    Default transparent qcombobox?

    how is it possible to make the background of the dropdown list of a QComboBox semi transparent?

    thank you in advance for your help

  2. #2
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    Default Re: transparent qcombobox?

    What did you already try?
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  3. #3
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    Default Re: transparent qcombobox?

    i tried

    Qt Code:
    1. cbox->view()->setWindowOpacity(.5);
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    and also

    Qt Code:
    1. QPalette pal = cbox->view()->palette();
    2. pal.setBrush(QPalette::Base, Qt::transparent);
    3. cbox->view()->setPalette(pal);
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    both does not work

  4. #4
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    Default Re: transparent qcombobox?

    Try using Qt::WA_TranslucentBackground.
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  5. #5
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    Default Re: transparent qcombobox?

    it does not make any difference...

    i am in style plastique, i got the feeling a background color is written first then the 50% opacity is added on top.. how to make sure there is no background paint on this wiget

  6. #6
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    Default Re: transparent qcombobox?

    You may have to provide a custom delegate to the view. One that does not paint the background or does it with translucency.
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