private IntPtr DialogHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode < 0)
{
return(Win32Native.CallNextHookEx(IntPtr.Zero, nCode, wParam, lParam));
}
var msg = (Win32Native.CWPRETSTRUCT)Marshal.PtrToStructure(lParam, typeof(Win32Native.CWPRETSTRUCT));
if (msg.message == (int)Win32Native.CbtHookAction.HCBT_ACTIVATE)
{
try
{
CenterWindow(msg.hwnd);
}
finally
{
Win32Native.UnhookWindowsHookEx(_hHook);
_hHook = IntPtr.Zero;
}
}
return(Win32Native.CallNextHookEx(IntPtr.Zero, nCode, wParam, lParam));
}