void __grab_int_ctrl_break( void )
{
if( __old_int_ctrl_break == 0 ) {
#if defined(__WINDOWS_386__)
__old_int_ctrl_break = _dos_getvect( CTRL_BRK_VEC );
TinySetVect( CTRL_BRK_VEC, (void (_WCNEAR *)(void))__int_ctrl_break_handler );
#elif defined( __386__ )
if( _IsPharLap() ) {
__old_int_ctrl_break = pharlap_rm_getvect( CTRL_BRK_VEC );
__old_pm_int_ctrl_break = pharlap_pm_getvect( CTRL_BRK_VEC );
pharlap_setvect( CTRL_BRK_VEC, (pfun) (void (_WCNEAR *)(void))__int_ctrl_break_handler );
} else if( __DPMI_hosted() == 1 ) {
DPMILockLinearRegion((long)__int_ctrl_break_handler,
((long)__restore_int23 - (long)__int_ctrl_break_handler));
__old_int_ctrl_break = DPMIGetRealModeInterruptVector( CTRL_BRK_VEC );
__old_pm_int_ctrl_break = DPMIGetPMInterruptVector( CTRL_BRK_VEC );
DPMISetPMInterruptVector( CTRL_BRK_VEC, __int_ctrl_break_handler );
} else { /* what it used to do */
__old_int_ctrl_break = _dos_getvect( CTRL_BRK_VEC );
_dos_setvect( CTRL_BRK_VEC, __int_ctrl_break_handler );
}
#else
__old_int_ctrl_break = _dos_getvect( CTRL_BRK_VEC );
_dos_setvect( CTRL_BRK_VEC, __int_ctrl_break_handler );
#endif
if( __int23_exit == __null_int23_exit ) {
__int23_exit = __restore_int_ctrl_break;
} else if( __int23_exit == __restore_int23 ) {
__int23_exit = __restore_int;
}
}
}
_WCRTLINK void _dos_setvect( unsigned intnum, void (__interrupt _WCFAR *func)() )
{
#if defined(__WINDOWS_386__)
TinySetVect( intnum, (void _WCNEAR *) func );
#elif defined(__386__)
if( _IsPharLap() ) {
pharlap_setvect( intnum, func );
} else { /* DOS/4G style */
dos4g_setvect( intnum, func );
}
#else
_setvect( intnum, func );
#endif
}
