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README

basic

  • 使用的 QT 版本:5.14.2
  • 测试平台:Win10

demos

draw_QImage_in_thread

  • 测试功能:在非 UI 线程,对 QImage 进行绘制,并将此 QImage 传递到 UI 线程进行使用
  • 要点:
    • 实例化 QPainter 前,必须先实例化 QApplication(或 QGuiApplication)
    • 可以在非 UI 线程,使用 QPainter 绘制 QImage

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