On 2014-04-30 04:58, Igor Stasenko wrote:

NBFFICallout>>foreignCall: aBlock

callInfo := self newCallInfo.
callInfo alignment: 16.
asm performingCall: callInfo in: aBlock.

while use:
NativeBoostWin32>>stackAlignment
^ 1

This seems to work - however, I did not to subsequent calls.

and then swap values.

That crashes instantaneously.

Best regards,
�� Markus