TYPEMAP
HWND         T_HANDLE
HTREEITEM    T_IV
LONG         T_IV
LPCTSTR      T_PV
LPTSTR       T_PV
DWORD        T_IV
UINT         T_IV
BOOL         T_IV
WPARAM       T_IV
LPARAM       T_IV
LRESULT      T_IV
HINSTANCE    T_IV
COLORREF     T_COLOR
LPCSTR       T_PV
FLOAT        T_FLOAT
LPVOID       T_PV

################################################################################
INPUT
T_HANDLE
    if(SvROK($arg)) {
        if(hv_fetch((HV*)SvRV($arg), \"-handle\", 7, 0) != NULL)
            $var = ($type) SvIV(*(hv_fetch((HV*)SvRV($arg), \"-handle\", 7, 0)));
        else
            $var = NULL;
    } else
        $var = ($type) SvIV($arg);
