嗨，我在屏幕键盘上制作。它很简单......我是C＃编程的新手......我不知道如何编写箭头代码？ :-( [英] Hi, I am making on the Screen Keyboard . Its just simple ... I am new in C# Programming... I don't know how to code Arrows ? :-(

问题描述

请分享我的箭头键COED，点击菜单键和Windows按键

Please Share me COde for Arrow Keys, RIght click menu Key and Windows Button Key

推荐答案

不，这并不像你想象的那么简单。有一些问题，其中之一：屏幕键盘可以抓住键盘焦点，这应该留在数据输入控件上。这个问题是可以解决的。箭头键的问题根本不存在：这些键与其他键没有区别;它们甚至不是状态键（您还需要模拟它）。解决方案取决于您想要使用什么： System.Windows.Forms ，WPF或其他。



另外，对于高质量的键盘，最好通过P / Invoke使用Windows API SendInput 。 （如果你这样做，它也用箭头解决你的问题:-)）P / Invoke代码已经为你编写，请看下面。请参阅：

http ：//msdn.microsoft.com/en-us/library/windows/desktop/ms646310%28v=vs.85%29.aspx [ ^ ]，

< a href =http://www.pinvoke.net/default.aspx/user32.sendinput> http://www.pinvoke.net/default.aspx/user32.sendinput [ ^ ]。



另见我过去的答案：

申请重点关注和失败 [ ^ ]，

创建虚拟键盘 [ ^ ]，

在BACKSPACE按钮上编程 [ ^ ]，

应用程序重点获取和失败 [ ^ ]，

用于WPF应用程序的软件虚拟键盘 [ ^ ]。

-SA

No, this is not as simple as you may think. There are some problems, one of them: the screen keyboard can grab keyboard focus, which should stay on the data input control. This problem is solvable. The problem of arrow keys simply does not exist: those keys are no different from other keys; they are not even status keys (which you also will need to emulate). The solution depends on what do you want to use: System.Windows.Forms, WPF, or something else.

Also, for a good-quality keyboard, you should better use Windows API SendInput, via P/Invoke. (If you do, it also solves your problem with arrows :-)) The P/Invoke code is already written for you, please see below. Please see:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646310%28v=vs.85%29.aspx[^],
http://www.pinvoke.net/default.aspx/user32.sendinput[^].

See also my past answers:
Application focus getting and losing[^],
Creating a Virtual Keyboard[^],
Programming on BACKSPACE button[^],
Application focus getting and losing[^],
A software Virtual Keyboard for your WPF apps[^].

—SA

这篇关于嗨，我在屏幕键盘上制作。它很简单......我是C＃编程的新手......我不知道如何编写箭头代码？ :-(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！