制作无闪烁动画 C# 自定义控件的最佳方法是什么？

发布于 2024-07-07 15:27:14 字数 393 浏览 9 评论 0原文

我目前正在创建一个需要在 C# 项目中处理动画的自定义控件。它基本上是一个列表框，包含固定数量的可移动元素。元素（具有背景图像和几个生成的标签的另一个用户控件）可以向上、向下移动或从列表中取出。

我想创建动画运动，因为元素在容器自定义控件内移动，但在我看来，使用诸如

myCustomControl.left -= m_iSpeed;

计时器事件中触发之类的线来移动控件会闪烁并且渲染效果很糟糕，即使打开了双缓冲也是如此。

所以问题是：实现无闪烁动画 C# 控件的最佳方法是什么？我是否应该不创建自定义控件并处理我生成的面板背景图像中的所有绘图？难道还有超级动画的方法我没发现吗？：）

谢谢！

原文

I am currently creating a custom control that needs to handle animation in a C# project. It is basically a listbox that contains a fixed number of elements that are subject to move. An element (another user control with a background image and a couple of generated labels) can move upwards, downwards or be taken out of the list.

I would like to create animated movement as the elements get moved around within the container custom control but it seems to me that moving controls around using lines such as

myCustomControl.left -= m_iSpeed;

triggered within a timer event is flickery and has a terrible rendering, even with double buffering turned on.

So here's the question : What is the best way to achieve a flicker-free animated C# control? Should I just not create custom controls and handle all of the drawing within a panel's background image that I generate? Is there a super animation method that I have not discovered? :)

Thanks!

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仄言 2024-07-14 15:27:14

对于无闪烁动画，最好的选择是自己绘制（使用 Paint 事件处理程序中的 Graphics 对象）并使用双缓冲。在您的自定义控件中，您将需要在构造函数中使用如下代码：

this.SetStyle(ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer | 
    ControlStyles.AllPaintingInWmPaint | ControlStyles.SupportsTransparentBackColor,
    true);

your best bet for flicker-free animation is to do the painting yourself (use the Graphics object in the Paint event handler) and use double-buffering. In your custom control you will need code like this in the constructor:

this.SetStyle(ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer | 
    ControlStyles.AllPaintingInWmPaint | ControlStyles.SupportsTransparentBackColor,
    true);

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