video preview stopped after windows update (KB4598242)
Mar 03, 2021
henry lee
wrote
Hi visioforge.
I'm using Samsung Flex 2, and I'm trying to "video preview" at demo application. (downloaded from github - .Net-SDK-s-samples-master\Video Capture SDK\WPF\CSharp\Main_Demo)
But, the preview grid showed only the first frame and froze before press the stop button.
Here's my log.
Thank you.
I'm using Samsung Flex 2, and I'm trying to "video preview" at demo application. (downloaded from github - .Net-SDK-s-samples-master\Video Capture SDK\WPF\CSharp\Main_Demo)
But, the preview grid showed only the first frame and froze before press the stop button.
Here's my log.
Thank you.
Reply
15 Answers
Mar 03, 2021
Roman Miniailov
agent
wrote
Hi
Does it work using Video Preview mode instead of a custom source?
Thank you!
Does it work using Video Preview mode instead of a custom source?
Thank you!
Mar 03, 2021
henry lee
wrote
Hi
I'm using "Video Preview", not a "custom source" but it doesn't work.
I'm using "Video Preview", not a "custom source" but it doesn't work.
Mar 03, 2021
Roman Miniailov
agent
wrote
Please send logs - https://support.visioforge.com/041973-How-to-send-debug-info
Also, maybe camera access not allowed?
https://support.microsoft.com/en-us/windows/turn-on-app-permissions-for-your-camera-in-windows-10-87ebc757-1f87-7bbf-84b5-0686afb6ca6b
Also, maybe camera access not allowed?
https://support.microsoft.com/en-us/windows/turn-on-app-permissions-for-your-camera-in-windows-10-87ebc757-1f87-7bbf-84b5-0686afb6ca6b
Mar 03, 2021
henry lee
wrote
I send the log at the top. ( I saw the log, but no errors in the log messages..)
And also allow the camera access.
And also allow the camera access.
Mar 03, 2021
Roman Miniailov
agent
wrote
Please send logs (all files) - https://support.visioforge.com/041973-How-to-send-debug-info
Mar 03, 2021
henry lee
wrote
Sorry. I misunderstood it.
Here's my real log.
Thank you.
Here's my real log.
Thank you.
Mar 04, 2021
Roman Miniailov
agent
wrote
Logs looks OK (except that you are started it several times).
Please try to run our demo apps for both, WinForms and WPF. Maybe we have some rendering issue.
Please try to run our demo apps for both, WinForms and WPF. Maybe we have some rendering issue.
Mar 12, 2021
henry lee
wrote
Here's my log. (Winform)
Log that before I sent is WPF demo app.
(My solution is made by wpf, so I can't change framework.)
Thank you.
Log that before I sent is WPF demo app.
(My solution is made by wpf, so I can't change framework.)
Thank you.
Mar 12, 2021
Roman Miniailov
agent
wrote
Do you have same preview issue in WinForms app?
Mar 12, 2021
Roman Miniailov
agent
wrote
Maybe you have some security software like Kaspersky that can block webcam?
Mar 13, 2021
henry lee
wrote
No issue with the Winform Demo app.
I have no security app.
All of my customer that installed KB4598242 have the same issue.
I have no security app.
All of my customer that installed KB4598242 have the same issue.
Mar 15, 2021
Roman Miniailov
agent
wrote
Mar 15, 2021
Roman Miniailov
agent
wrote
That's web-camera related update with known issues. I suggest to remove update and wait for a new version.
It's nothing to do from our side as I see.
It's nothing to do from our side as I see.
Apr 01, 2021
henry lee
wrote
I think it's not a "known issues". It's "Update" about security.
```
Updates to improve security when using external devices, such as game controllers, printers, and web cameras.
```
So, I need a new version that contains new security codes.
Thank you.
```
Updates to improve security when using external devices, such as game controllers, printers, and web cameras.
```
So, I need a new version that contains new security codes.
Thank you.
Apr 03, 2021
Roman Miniailov
agent
wrote
Do you have this issue in SDK WPF demo app?