private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode < 0 || Enable == false)
{
return(API.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
API.KBDLLHOOKSTRUCT hookStruct = (API.KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(API.KBDLLHOOKSTRUCT));
Keys key = (Keys)hookStruct.vkCode;
KeyStates keyState = KeyStates.None;
switch ((API.KeyboardMessages)wParam)
{
case API.KeyboardMessages.WM_KEYDOWN:
{
keyState = KeyStates.Down;
}
break;
case API.KeyboardMessages.WM_KEYUP:
{
keyState = KeyStates.Up;
}
break;
}
if (KeyboardAction(new KeyboardActionArgs(key, keyState)))
{
return((IntPtr)1);
}
return(API.CallNextHookEx(_hookID, nCode, wParam, lParam));
}
private bool KeyboardProcedure(int message, API.KBDLLHOOKSTRUCT param)
{
var isInjected = ((param.flags & (1 << 1)) | (param.flags & (1 << 4))) != 0;
var isALTDown = (param.flags & (1 << 5)) != 0;
var args = new KeyEventArgs(param.vkCode, isInjected, isALTDown);
if (message == API.WM_KEYDOWN || message == API.WM_SYSKEYDOWN)
{
KeyDownEvent?.Invoke(this, args);
}
else if (message == API.WM_KEYUP || message == API.WM_SYSKEYUP)
{
KeyUpEvent?.Invoke(this, args);
}
return(args.IsPrevent);
}
