internal virtual IntPtr Callback(int nCode, IntPtr wParam, IntPtr lParam)
{
HookCallback?.Invoke(nCode, wParam, lParam);
if (CallNextHook)
{
return(CallNextHookEx(hhk, nCode, wParam, lParam));
}
else
{
return((IntPtr)1);
}
}
private IntPtr WndProc(IntPtr hWnd, uint message, IntPtr wParam, IntPtr lParam)
{
const int WM_NULL = 0;
const int WM_DESTROY = 2;
const int WM_COPYDATA = 0x004A;
switch (message)
{
case WM_COPYDATA:
var data = Marshal.PtrToStructure <COPYDATASTRUCT>(lParam);
Debug.WriteLine("{3} Hook message = {0} ({0:X2}), wParam = {1} ({1:X4}), lParam = {2} ({2:X8})", data.dwData, wParam.ToInt32(), data.lpData.ToInt32(), DateTime.Now.ToShortTimeString());
return(hookCallback.Invoke(data.dwData, wParam, data.lpData));
case WM_DESTROY:
PostQuitMessage(0);
return(IntPtr.Zero);
default:
Debug.WriteLine("{0} Window message = {1} ({1:X2})", DateTime.Now.ToShortTimeString(), message);
break;
}
return(DefWindowProc(hWnd, message, wParam, lParam));
}