如何实现在播放视频的窗口上面加上一层透明窗口,并可在透明窗口绘图？？

ronaldo07 2008-12-24 10:01:21

如何实现在播放视频的窗口上面加上一层透明窗口,并可在透明窗口绘图？？

本人加上一层透明窗体后，透明窗体不能响应鼠标消息，如果不完全透明，因为有后面的视频，会闪烁？请问有其他方法吗？？？急。。

高分请教！！！

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dd_zhouqian 2009-09-09

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果然，我刚把显卡的硬件加速关了，暴风上可以透明了。原来是黑色的。
不过我自己directshow显示的视频，不管是否关闭硬件加速，都能让透明，但是同时伴有闪烁。

wyxz555 2009-08-02

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同样的问题，关注中

zzz822163 2008-12-24

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看看http://www.codeproject.com/KB/audio-video/VideoPicture.aspx

ronaldo07 2008-12-24

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[Quote=引用 1 楼 fandh 的回复:]
是做视频转换吧，是不是想在试用版本中间加上提示或者什么的？
透明可以使用GDI+画，直接在上面画，鼠标响应，可以就用播放窗体的透明窗体！
[/Quote]
不是视频转换，是视频写屏,但是加透明窗口会闪

ronaldo07 2008-12-24

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差不多想视频写屏，但可以是不同层的。

蒋晟 2008-12-24

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要是视频播放器直接写屏的话就没有办法。

fandh 2008-12-24

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是做视频转换吧，是不是想在试用版本中间加上提示或者什么的？
透明可以使用GDI+画，直接在上面画，鼠标响应，可以就用播放窗体的透明窗体！

ronaldo07 2008-12-24

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[Quote=引用 5 楼 zzz822163 的回复:]
看看http://www.codeproject.com/KB/audio-video/VideoPicture.aspx
[/Quote]
那种效果不好，要是显示位图还好。

该示例演示Qt在视频窗口上，叠加一层透明窗口，然后在透明窗口上画出截图框的方法。

GLSurfaceViewDemo 采用自定义GLSurfaceView播放视频，并作了分层隔离

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You’ll see several examples, including a template-based color picker, a flippable panel, custom layout container, and a decorator that performs custom drawing. Chapter 19: Data Binding shows you how to fetch information from a database, insert it into a custom data objects, and bind these objects to WPF controls. You’ll also learn how to improve the performance of huge data-bound lists with virtualization, and catch editing mistakes with validation. Chapter 20: Formatting Bound Data shows some of the tricks for turning raw data into rich data displays that incorporate pictures, controls, and selection effects. Chapter 21: Data Views explores how you use the view in a data-bound window to navigate through a list of data items, and to apply filtering, sorting, and grouping. Chapter 22: Lists, Grids, and Trees gives you a tour of WPF’s rich data controls, including the ListView, TreeView, and DataGrid. Chapter 23: Windows examines how windows work in WPF. 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Qt视频窗口重叠透明窗口及区域截图代码示例去发现同类优质开源项目:https://gitcode.com/ 简介本资源文件提供了一个基于Qt的示例代码，演示了如何在视频窗口上叠加一层透明窗口，并在透明窗口上绘制截图框的方法。通过这个示例，您可以学习如何在Qt中实现视频窗口的透明叠加以及区域截图功能。功能描述视频窗口叠加透明窗口：在视频播放窗口上叠加一层透明的窗口，使得视频内容可以透过透明...

使用Qt控件（例如QWidget或QLabel）做视频播放，当需要在视频上画框或者画点线做标记时，一般无法直接在播放的控件上画出。在正在播放的视频窗口，画一个小于视频窗口的区域，然后截取该区域保存至图片，是一个很常见的抓拍需求。这个时候的思路是在正在播放视频的窗口叠加一层窗口，将该叠加窗口设置为透明，设置一些基本窗口属性，重写其paintEvent()事件。当鼠标进入视频窗口后，显示这个透明窗...

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