private void OnUnicodeChar()
{
if (KeyUnicode != null)
{
string s = string.Empty;
int integerCode;
foreach (VirtualKeyCode vk in numpadDigitsKeys)
{
s += (vk - VirtualKeyCode.NUMPAD0);
}
if (Int32.TryParse(s, out integerCode))
{
Console.WriteLine("UNICODE: code= " + integerCode);
KEYBDINPUT down = new KEYBDINPUT
{
wVk = 0,
wScan = (ushort)integerCode,
dwFlags = KEYEVENTF_UNICODE,
time = 0,
dwExtraInfo = IntPtr.Zero
};
KEYBDINPUT up = new KEYBDINPUT
{
wVk = 0,
wScan = (ushort)integerCode,
dwFlags = (KEYEVENTF_KEYUP | KEYEVENTF_UNICODE),
time = 0,
dwExtraInfo = IntPtr.Zero
};
if ((integerCode & 0xFF00) == 0xE000)
{
up.dwFlags |= KEYEVENTF_EXTENDEDKEY;
down.dwFlags |= KEYEVENTF_EXTENDEDKEY;
}
INPUT[] inputs = new INPUT[] {
new INPUT {
dwType = (Int32)InputType.Keyboard,
ki = down
},
new INPUT {
dwType = (Int32)InputType.Keyboard,
ki = up
}
};
KeyUnicode(this, inputs);
}
}
}
private IntPtr HookCallback(int nCode, IntPtr wParam, ref KEYBDINPUT lParam)
{
if (nCode >= 0)
{
VirtualKeyCode code = (VirtualKeyCode)lParam.wVk;
INPUT input = new INPUT
{
dwType = (Int32)InputType.Keyboard,
ki = lParam
};
int message = (int)wParam;
if (message == WM_KEYDOWN || message == WM_SYSKEYDOWN)
{
if (code == VirtualKeyCode.MENU || code == VirtualKeyCode.LMENU || code == VirtualKeyCode.RMENU)
{
menuDown = true;
}
else if (code >= VirtualKeyCode.NUMPAD0 && code <= VirtualKeyCode.NUMPAD9 && menuDown)
{
if (code != downKeys[downKeys.Count - 1])
{
numpadDigitsKeys.Add(code);
}
}
else
{
numpadDigitsKeys.Clear();
menuDown = false;
}
OnKeyDown(input);
if (!downKeys.Contains(code))
{
downKeys.Add(code);
}
}
else if (message == WM_KEYUP || message == WM_SYSKEYUP)
{
OnKeyUp(input);
if (downKeys.Count > 1)
{
OnKeyShortcut();
}
if (downKeys.Contains(code))
{
downKeys.Remove(code);
}
if (code == VirtualKeyCode.MENU || code == VirtualKeyCode.LMENU || code == VirtualKeyCode.RMENU)
{
OnUnicodeChar();
numpadDigitsKeys.Clear();
menuDown = false;
}
}
}
int altDown = Win32.GetKeyState((int)VirtualKeyCode.MENU);
bool isAltDown = altDown == -127 || altDown == -128;
if (isAltDown && lParam.wVk == 9)
{
Console.WriteLine("alt tab");
return(new IntPtr(-1));
}
int ctrlDown = Win32.GetKeyState((int)VirtualKeyCode.LCONTROL);
bool isCtrlDown = ctrlDown == -127 || ctrlDown == -128;
if (isCtrlDown && isAltDown && lParam.wVk == (int)VirtualKeyCode.DELETE)
{
Console.WriteLine("ctrl alt canc");
return(new IntPtr(-1));
}
if (isAltDown && lParam.wVk == (int)VirtualKeyCode.F4)
{
Console.WriteLine("alt F4");
return(new IntPtr(-1));
}
return(CallNextHookEx(hookPtr, nCode, wParam, ref lParam));
}
public static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, ref KEYBDINPUT lParam);