C#检查键盘大小写锁定状态

C#检查键盘大小写锁定状态

1、命名空间：

using System.Runtime.InteropServices;

2、导入方法

[DllImport("user32.dll", EntryPoint = "GetKeyboardState")]
public static extern int GetKeyboardState(byte[] pbKeyState);

3、大小写状态

public static bool CapsLockStatus
{
get
{
byte[] bs = new byte[256];
GetKeyboardState(bs);
return (bs[0x14] == 1);
}
}

4、引用，此部分根据你的需要来修改

private void button2_Click(object sender, EventArgs e)
{
if (CapsLockStatus == true)
MessageBox.Show("键盘处于大写锁定状态！");
else
MessageBox.Show("键盘处于小写状态！");
}