[Qt-interest] Doubt about WId received of the QWidget::winId()

[Oswaldo F. Filho]

Alex,

I tried "frame->setAttribute(Qt::WA_NativeWindow, true)", but don't work.

I used QApplication::setAttribute() with attribute Qt:AA_NativeWindows 
in main.cpp and now it work.

Thanks!

Oswaldo F. Filho.

Malyushytsky, Alex wrote:
> Try to set Qt::WA_NativeWindow attribute on the window you want to use WId.
> 
> Regards,
>        Alex
> 
> 
> -----Original Message-----
> From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Oswaldo F. Filho
> Sent: Thursday, January 28, 2010 4:01 PM
> To: qt-interest at trolltech.com
> Subject: Re: [Qt-interest] Doubt about WId received of the QWidget::winId()
> 
> oswaldo.f.filho wrote:
>> Hi!
>>
>> I just tested with MIL-Lite 9.0, one proprietary library for computer
>> vision, and I have a problem.
>>
>> I grab sequence of image through of the frame grabber and I store on a
>> buffer. I tried to show the images through of the function above:
>>
>> /* Display the buffers. */
>> MdispSelectWindow(MilDisplay, MilImage, frame->winId());
>>
>> When I compile the application with qt-4.3.4 I don't have any problem,
>> and application work, but when I compile the app lication with qt-4.4.1
>> the function MdispSelectWindow() return error and indicate that return
>> "frame->winId()" isn't validate.
>>
>> I tried to find some difference when I execute "xwininfo -int -tree"
>> above application compiled with qt-4.3.4 and qt-4.4.1, but I did't see
>> difference.
>>
>> What is it happened?
>>
>> Regards,
>>
>> Oswaldo F. Filho
>>
> 
> Following message in text format.
> 
> =======================================================================
> 
> Hi!
> 
> I just tested with MIL-Lite 9.0, one proprietary library for computer
> vision, and I have a problem.
> 
> I grab sequence of image through of the frame grabber and I store on a
> buffer. I tried to show the images through of the function above:
> 
> /* Display the buffers. */
> MdispSelectWindow(MilDisplay, MilImage, frame->winId());
> 
> When I compile the application with qt-4.3.4 I don't have any problem,
> and application work, but when I compile the app lication with qt-4.4.1
> the function MdispSelectWindow() return error and indicate that return
> "frame->winId()" isn't validate.
> 
> I tried to find some difference when I execute "xwininfo -int -tree"
> above application compiled with qt-4.3.4 and qt-4.4.1, but I did't see
> difference.
> 
> What is it happened?
> 
> Regards,
> 
> Oswaldo F. Filho
> 
> =======================================================================
> 
> Help me, please!
> 
> Oswaldo F. Filho
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> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest
> 
> 
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