QOpenGLWidget 全屏显示黑屏解决方案

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已于 2024-02-29 15:55:14 修改 · 2.9k 阅读

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#c++ #windows

于 2022-02-09 13:56:31 首次发布

本文探讨了使用QOpenGLWidget在Qt中处理YUV视频时全屏下黑屏的问题，并分享了Qt官方的解决方案，通过设置QWindowsWindowFunctions以解决OpenGL全屏模式下窗口层级问题。

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一、碰到的问题：

用 QOpenGLWidget 显示YUV数据视频时，部分电脑设置全屏时会黑屏。

二、 Qt 给出的方案

Fullscreen OpenGL Based Windows

When a window is using an OpenGL based surface and is appearing in full screen mode, problems can occur with other top-level windows which are part of the application. Due to limitations of the Windows DWM, compositing is not handled correctly for OpenGL based windows when going into full screen mode. As a result, other top-level windows are not placed on top of the full screen window when they are made visible. For example, menus may not appear correctly, or dialogs fail to show up.

A window can use an OpenGL based surface either explicitly when