c# translation 3

What is the c# translation of this code?:

CPaintHook::CPaintHook()
{
    static bool s_hooked = false;

    if ( ! s_hooked )
    {
        Hook("USER32.DLL", "BeginPaint", syscall_BeginPaint, pBeginPaint, MyBeginPaint);
        Hook("USER32.DLL", "EndPaint",   syscall_EndPaint,   pEndPaint,   MyEndPaint);

        s_hooked = true;
    }

    m_thunk[0]              = 0xB9;               // mov ecx,
    *((DWORD *)(m_thunk+1)) = (DWORD) this;  //          this
      *((DWORD *)(m_thunk+5)) = 0x20FF018B;    // mov eax, [ecx]

    m_OldWndProc = NULL;
    m_hDC        = NULL;
}