如何在正在运行的视频上绘制矩形，线形 [英] How to Draw Rectangle,line shape on Running videos

问题描述

嗨
如何在正在运行的视频上绘制线条和矩形形状

Hi
How to draw lines and rectangles shapes on running video

推荐答案

我没有选择尝试的方法，但是我的猜测是:

您不能在视频窗口上绘制画布吗?也许如果将其背景色设置为完全透明，您将看不到画布本身，但是当您在画布上绘制某些东西时，它就会可见.

要在视频窗口上完全定位画布，也许您可​​以使用其他画布.老实说，这可以在WPF中运行(可能是:))，但是如果我在C#2.0中是正确的，那么也应该是canvas类.

I don''t have an option to try it out, but my guess is this:

Can''t you draw a canvas over your video window? Maybe if you set its background colour to fully transparent you won''t see the canvas itself, but when you draw something on it, then it will be visible.

To locate canvas exactly over the video window, maybe you can use an another canvas. To be honest this would be working in WPF ( probably :) ), but if I''m correct in C# 2.0 also should be a canvas class.

这篇关于如何在正在运行的视频上绘制矩形，线形的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！