求c#按钮精灵程序代码，就是股票软件中输入数字，右下角弹出的下拉列表(winform)

Question

求c#按钮精灵程序代码，就是股票软件主窗体中输入数字，右下角弹出的下拉列表(winform)

Answer 1

我有webfrom的不过winform应该更简单吧

Answer 2

按键精灵的代码？？
如果只要取得用户输入的键可以在窗口的keypress事件中获得

Answer 3

只需要在KeyPress事件中来处理一下就可以了KeyPress的时候判断输入的是不是字母还是数字,再判断窗口是不是弹出来了,然后再把字符弄上去即可

Answer 4

KeyPress事件，想更牛的话就用钩子了。

Answer 5

这样应该要用到键盘钩子，这里是一个简单的示例：    public struct KBDLLHOOKSTRUCT
    {
        public int vkCode;
        int scanCode;
        public int flags;
        int time;
        int dwExtraInfo;
    }
public delegate IntPtr KeyboardHookProc(int nCode, IntPtr wParam, ref KBDLLHOOKSTRUCT lParam);
        public KeyboardHookProc HookProc;        public static IntPtr hHookHandle = IntPtr.Zero;        public const int WH_MOUSE_LL = 14;
        public const int WH_KEYBOARD_LL = 13;
        private const int WM_KEYDOWN = 0x0100;
        private const int WM_SYSKEYDOWN = 0x0104;        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
        public static extern IntPtr SetWindowsHookEx(int idHook, KeyboardHookProc lpfn, IntPtr hMod, uint dwThreadId);        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
        public static extern bool UnhookWindowsHookEx(IntPtr idHook);
 
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
        private static extern IntPtr CallNextHookEx(IntPtr idHook, int nCode, IntPtr wParam, ref KBDLLHOOKSTRUCT lParam);        private void button1_Click(object sender, EventArgs e)
        {
            setKeyboardHook();
        }        public void setKeyboardHook()
        {
            if (hHookHandle == IntPtr.Zero)
            {
                HookProc = new KeyboardHookProc(HookCallback);
                hHookHandle = SetWindowsHookEx(WH_KEYBOARD_LL, HookProc, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
                if (hHookHandle == IntPtr.Zero)
                {
                    MessageBox.Show("SetWindowsHookEx Failed");
                    return;
                }
                button1.Text = "Uninstall Hook";            }
            else
            {
                if (!UnhookWindowsHookEx(hHookHandle))
                {
                    MessageBox.Show("UnhookWindowsHookEx Failed");
                    return;
                }
                hHookHandle = IntPtr.Zero;
                button1.Text = "Install Hook";
            }        }
        private IntPtr HookCallback(int nCode, IntPtr wParam, ref KBDLLHOOKSTRUCT lParam)
        {            if (nCode >= 0 && (wParam == (IntPtr)WM_KEYDOWN || wParam == (IntPtr)WM_SYSKEYDOWN)) //仅捕获KeyDown事件
             {
               //这里可以加上你窗体的操作代码。
                MessageBox.Show("you press key: " + lParam.vkCode.ToString());
                //return (IntPtr)0;
            }
            return CallNextHookEx(hHookHandle, nCode, wParam, ref lParam);
        }