Grab a frame from video when a push button is pressed!!!

[Jakr1387]

Hi everyone!!!

I have a small issue in displaying a new image in Qlabel. I have a video running in Qlabel when a pushbutton is pressed, and I am grabing a frame from the video and updating the same Qlabel when another pushbutton is pressed. My problem here is when I push the second pushbutton, Qlabel is loaded with old frame, but when I push the second push button again, I am getting my frame in Qlabel.


Can someone suggest me what is an issue?


Thanks in advance!!!

jakr1387

[wysota]

The issue is you are setting an incorrect pixmap on the label.

[Jakr1387]

Hi wysota,

I could not find anything. I am pointing to the correct label, maybe I have something missing. Plz find the attached code


thanks in advance!!
jakr1387

[wysota]

What does cap.read() return? What does cap.retrieve() return?