using Microsoft.Win32; private void MainForm_FormClosed(object sender, FormClosedEventArgs e) { HotKey.UnregisterHotKey(Handle, 100); } class HotKey { [System.Runtime.InteropServices.DllImport("user32.dll", SetLastError = true)] public static extern bool RegisterHotKey(IntPtr hWnd,int id, KeyModifiers fsModifiers,Keys vk); [System.Runtime.InteropServices.DllImport("user32.dll", SetLastError = true)] public static extern bool UnregisterHotKey(IntPtr hWnd,int id); [Flags()] public enum KeyModifiers { None = 0, Alt = 1, Ctrl = 2, Shift = 4, WindowsKey = 8 } } protected override void WndProc(ref Message m) { const int WM_HOTKEY = 0x0312; switch (m.Msg) { case WM_HOTKEY: switch (m.WParam.ToInt32()) { case 160: JPbutton.PerformClick(); break; } break; } base.WndProc(ref m); } private void MainForm_Load(object sender, EventArgs e) { HotKey.RegisterHotKey(Handle, 160, HotKey.KeyModifiers.Alt, Keys.E); }