bit-blit ops

[cdr]

While testing my Win32 application under wine, I came to the
conclusion that some bit-blit ops behave differently from
when the same code is running under native Windowds. While
the subject will be researched further, as a stop-gap measure
I have a need to detect - from within my application - that
it is running under wine. What is the correct way - if any -
to perform such test?

tia, crd