This is not working.
So In QML, I start the backface camera, and it grabs viewfinder frames.
I then call my C++ object which has this function:
bool FlashControl::isFlashSupported(){
camera = new QCamera(QCamera::BackFace);
if (camera) {
QCameraExposure *exp = camera->exposure();
if (exp) {
qDebug() << "QCamera ok, returning flash modes"
<<
exp->isFlashModeSupported(QCameraExposure::FlashOn)
<<
exp->isFlashModeSupported(QCameraExposure::FlashAuto)
<<
exp->isFlashModeSupported(QCameraExposure::FlashManual);
return
exp->isFlashModeSupported(QCameraExposure::FlashOn);
}
else qDebug() << "has QCamera, no exp";
} else qDebug() << "no QCamera";
return false;
}
Which then prints all falses and returns false itself, even on a camera that
has a working flash (Nexus6). What am I still doing wrong?
> Sent: Tuesday, July 21, 2015 at 9:19 AM
> From: "Lopes Yoann" <yoann.lo...@theqtcompany.com>
> To: "Jason H" <jh...@gmx.com>
> Cc: interest <interest@qt-project.org>
> Subject: Re: [Interest] QCamera flash modes
>
> > On 20 Jul 2015, at 21:34, Jason H <jh...@gmx.com> wrote:
> >
> > However all I ever get is false. This is being run on an iPhone 5S, which
> > does have a backface flash, and I do use the flash successfully in QML. I'm
> > attempting to also support iPads which do not have a flash at all, but I
> > need to know that the flash does not work.
> >
> > Does anyone know what I might be doing wrong?
>
> You need to start the camera before being able to query for its capabilities.
>
> —
> Yoann
>
>
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