Re: Fullscreen on secondary displays

FROM : John Stiles
DATE : Tue May 13 23:00:03 2008

None of this really refutes what Ricky posted.
You are just lucky that it works in the one-display case. It really
isn't designed to work, and on some configurations, it just won't.
Is there anything preventing you from following Ricky's advice?


Dennis Munsie wrote:
> In this case, what I am trying to accomplish is something along the
> lines of how Keynote and Powerpoint behave.  I only want to take over
> one display, most likely connected up to a projector.  But, I also
> occasionally want to have it in a window.  I'm not expecting any
> controls to work -- this is strictly a view-only window.
>
> Also -- the code currently works just fine for the case of a single
> display machine or when the window is on the main display.  I just
> need to make it work when the window is on another display.
>
> thanks!
> dennis
>
> On Tue, May 13, 2008 at 4:23 PM, Ricky Sharp <<email_removed>> wrote:
> 

>>  Ack.  Do not expect to use AppKit with a captured display.  I really wish
>> all those archived code examples out there would just vanish; just leads to
>> more folks doing this.
>>
>>  Anyhow, if you really must capture the display using the CG APIs, please
>> note that there's different mechanisms for getting data onto the screen.
>> Search cocoa-dev and quartz-dev for the details on why you cannot use AppKit
>> with captured displays.
>>
>>  If you must use AppKit, you can always use a call to SetSystemUIMode (to
>> hide menu bar and dock).  Then, enumerate all screens and put up "blanking"
>> windows on each one.  Then, put up your "content" window over a particular
>> blanking one.  See the child window APIs for how you can ensure that the
>> content window is never brought forward over the blanking one.
>>
>>  This latter approach is what I've done for the past few years and has
>> worked great.
>>
>>  ___________________________________________________________
>>  Ricky A. Sharp        mailto:<email_removed>
>>  Instant Interactive(tm)  http://www.instantinteractive.com
>>
>>
>>   

>
>
>
>