how to use qwindowsdirect2dpaintengine



  • I want to use windows direct2d to make a Draw Tool, because the original QPainter , which is implement by windows GDI on low-level, is so slowly that satisfy my request.
    I wan't to use the QPainter that implement by Direct2D,it so fast. and i see the qt srouce code directory which has some code about Direct2D. the path is that "Qt5.7.0-x86\5.7\Src\qtbase\src\plugins\platforms\direct2d".

    It is pleasantly surprised to me, but I don't know how to apply the direct2d platform plugin in my project.
    can you give some guide or advice about this? even just some website link?

    Heartfelt thanks


  • Lifetime Qt Champion

    Hi and welcome to devnet,

    AFAIK, you can use ./your_application -platform direct2d


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