获取鼠标移动的距离

获取鼠标移动的距离

本文介绍了获取鼠标移动的距离的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个表格,里面我有一个小的面板名为播放。我怎样才能链接面板用户的鼠标,所以它会移动,鼠标移动?

I have a form and inside it I got a small Panel called Player. How can I "link" the panel to user's mouse, so it will move as the mouse moves?

我已经订阅 Player_MouseMove Player.MouseMove 事件,但我想不出有多少有鼠标实际移动。只有这样我能想出的是有一个这样的:

I've already subscribed Player_MouseMove to Player.MouseMove event but I can't figure out how much has the mouse actually moved. Only way I can come up with is to have a such:

private Point previousLocation;

private void Player_MouseMove(object sender, MouseEventArgs e)
{
    int differenceX, differenceY;
    differenceX = e.X - previousLocation.X;
    differenceY = e.Y - previousLocation.Y;
    previousLocation = e.Location;
}

这似乎是pretty的愚蠢,有一个额外的变量,并计算不同的每次。完美的方式会像 Player.LinkToCursor(); 或者这样的,但是如果没有自动化的方式,是有ATLEAST一个更好的办法

This seems pretty stupid, having an extra variable and calculating the difference everytime. Perfect way would be like Player.LinkToCursor(); or such, but if there's no automated way, is there atleast a better way?

推荐答案

看的我看不到任何东西,这将有助于你得到这个工作更好

Looking at http://msdn.microsoft.com/en-us/library/system.windows.forms.mouseeventargs.aspx I can't see anything that would help you get this done any better.

然而,有一件事你可以做:

There is however one thing you could do:

Point difference = e.Location - (Size)previousLocation;

矢量算术;)

Vector-arithmetics ;)

这篇关于获取鼠标移动的距离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!

08-12 06:54