C++ USB Camera Errors

[epylko]

We are using C++ and the USB camera as well. There are a couple of things we have done to get video in the C++ dashboard.

1. Make sure you have the patched widget located here: http://www.chiefdelphi.com/forums/sh...d.php?t=134404

2. When you start the driver station, start the default dashboard and then make sure you have USB Camera HW selected. You should see video in that dashboard. After you have video working there, switch to the C++ dashboard and add the patched widget to the dashboard.

I believe that will work - that's from memory. Let us know if that works.

[MamaSpoldi]

Originally Posted by epylko

We are using C++ and the USB camera as well. There are a couple of things we have done to get video in the C++ dashboard.

1. Make sure you have the patched widget located here: http://www.chiefdelphi.com/forums/sh...d.php?t=134404

2. When you start the driver station, start the default dashboard and then make sure you have USB Camera HW selected. You should see video in that dashboard. After you have video working there, switch to the C++ dashboard and add the patched widget to the dashboard.

I believe that will work - that's from memory. Let us know if that works.

Really appreciate that info. We followed your procedure and it WORKED! Thanks.

[MamaSpoldi]

So we had it working and now it does not work again after running without it on the robot for other testing (it was not securely mounted so we didn't want to damage it). Any advice? Do we have to go through the whole process (with the Labview dashboard and then changing over to the C++ SmartDashboard) each new time we bring up the robot with the camera? Do we need to reboot the driverstation after the camera is added?

Thanks

[Alan Anderson]

Originally Posted by MamaSpoldi

So we had it working and now it does not work again after running without it on the robot for other testing...

Did you plug it back into the same port it was in before? Check the roboRIO web page to see whether its name is now cam1 instead of cam0.

[cbf]

Originally Posted by MamaSpoldi

So we had it working and now it does not work again after running without it on the robot for other testing (it was not securely mounted so we didn't want to damage it). Any advice? Do we have to go through the whole process (with the Labview dashboard and then changing over to the C++ SmartDashboard) each new time we bring up the robot with the camera? Do we need to reboot the driverstation after the camera is added?

Thanks

It's just flakey. Many of the underlying classes don't return errors (mostly declared void). If anything goes wrong, it just keeps spewing errors to the message window on the dashboard.

This is much harder than it should be.