我无法编辑"A在当前上下文中不存在名称"A". [英] I can't edit " A The name 'A' does not exist in the current context "

问题描述

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Diagnostics;
using System.Data;
namespace ConsoleApplication1
{
    class Program
    {
        globalKeyboardHook gkh = new globalKeyboardHook();
        
        public void Form1_Load()
        {
            gkh.HookedKeys.Add(Keys.A);
            Console.WriteLine(Keys.A);
            gkh.KeyUp += new KeyEventHandler(gkh_KeyUp);            
        }

        public void gkh_KeyUp(object sender, KeyEventArgs e)
        {            
           Console.WriteLine(Keys.A);
           if (e.KeyCode== Keys.A)
           {
                Process.Start("System.exe");
           }                
        }
    }
        
    class on
    {
        static void Main(string[] args)
        {               
           Program nesne = new Program();
           nesne.Form1_Load();
           nesne.gkh_KeyUp(null,null);
        }
    }
}

nesne.gkh_KeyUp(null,null); ->我的错
+编译器说"A名称"A"在当前上下文中不存在"

我想按"A"，我的系统必须正常运行，另外我不想使用Form，我不想看到Form窗口.当我看到命令窗口(黑屏)时，我必须按"A"并且它必须起作用.我想做不同的快捷键.不经典

帮助 ！！！我必须更改(null，null)，但我不知道.我该怎么写?

nesne.gkh_KeyUp(null,null); --> my wrong
+ compiler said "A The name ''A'' does not exist in the current context"

I want to press "A" and my system must working in addition I dont want to use Form ,I dont want to see Form window. When ı see command window(black screen),I must press "A" and it must work. I want to do diffrent shortcut key. Not classic

HELP !!! I must change (null,null) but I dont know. What can I write?

推荐答案

这样您就可以了

so you ran

nesne.gkh_KeyUp(null,null);

您希望它能正常工作吗?.

它会到达if (e.KeyCode== Keys.A)并且将会失败，因为e为空.您是否要向程序发送"A"键代码以启动?如果是这样，则需要创建一个新的KeyEventArgs

and you expect that to work?.

It''s going to get to if (e.KeyCode== Keys.A) and it''s going to fail because e is null. Are you trying to send a "A" keycode to the program to start? If so, you need to create a new KeyEventArgs

System.Windows.Forms.KeyEventArgs myArgs = new 
         System.Windows.Forms.KeyEventArgs(System.Windows.Forms.Keys.A)

并将其作为第二个参数传递.

and pass that in as the second argument.

如果我写了您的实际建议，则我的system.exe在工作，但我不这样做.我想按"A"，我的系统必须正常工作，此外，我不想使用Form，也不想看到Form窗口.当我看到命令窗口(黑屏)时，我必须按"A"并且它必须起作用.我想做不同的快捷键.不经典

if ı write your practical proposal,my system.exe is working but ı dont it. I want to press "A" and my system must working, in addition I dont want to use Form ,I dont want to see Form window. When ı see command window(black screen),I must press "A" and it must work. I want to do diffrent shortcut key. Not classic

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