Hello,

I have a customer with a problem where the display freezes (sometimes) when moving off of the camera view.

Can someone please explain best practices for camera use? i.e. when to turn global video on/off, when to power camera on/off - before entering/leaving page or after?

Thanks,
Phil

Hey Phil,

Try not using "GlobalVideoOff" or "GlobalVideoOn". If you are using multiple video inputs, try using a single video screen with 1 video widget.

Depending on your UI and view layout, try selecting a video input with a state machine through the screen application:
ScreenApp>SelectVideoInput(Video1, Video2, or Video3)
This can be done either before showing the video widget or while the user is on the video page.

Also make sure the Numeric Variable, "Screen.VideoMode" is set to 0 (NTSC) or 1 (PAL). If this settings does need to be changed on the fly, it requires a reboot before it takes effect. In the Page Designer, make sure the video widget matches this setting (NTSC or PAL) on it's type which is at the bottom of the video widget properties tab.

Also note that the display draws the video widget on top of all other screen objects on all layers. So if the video widget is full screen, the customer will not be able to see any buttons or other objects even if they are on a layer above the video widget.

Thanks,

Spencer