C#检查键盘大小写锁定状态的方法

using System.Runtime.InteropServices;

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

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

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