an information 'bout |

[RicercatoreSbadato]

m_objVideoWindow.WindowStyle = WS_CHILD | WS_CLIPCHILDREN;

what does "|" mean? That the window is both WS_CHILD and
WS_CLIPCHILDREN?

 

[EventHelix.com]

WS_CHILD and WS_CLIPCHILDREN are bit patterns. "I" is enabling the bits
corresponding both the patterns.

Thus the window would have the attributes of WS_CHILD and
WS_CLIPCHILDREN.

 

[RicercatoreSbadato]

tnx

 

[Rolf Magnus]

m_objVideoWindow.WindowStyle = WS_CHILD | WS_CLIPCHILDREN;

what does "|" mean?

Maybe you should get an entry level C++ book. '|' is C++'s 'or' operator.

 

[red floyd]

RicercatoreSbadato wrote:




Maybe you should get an entry level C++ book. '|' is C++'s 'or' operator.

More specifically, it's C++'s *bitwise or* operator, as opposed to
boolean or.

i.e.

assume WS_CHILD is 0x0001 and WS_CLIPCHILDREN is 0x0002

Then WS_CHILD | WS_CLIPCHILDREN is 0x0003;

Whereas the boolean or (||) would give a different result (namely 1)