way to show image sequence without using timer or thread
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@Make-it-GREAT-again said in way to show image sequence without using timer or thread:
but without using timer
use a QTimer, everything else will not work.
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Hi, @Christian-Ehrlicher . Thanks for reply at first. I cannot use QTimer for timer is an option of my project to limit running time of the entire application (or program).
I have just found a virtual function named PaintEvent. Is that possible to re-implement this to do my work like this
https://stackoverflow.com/questions/1242005/what-is-the-most-efficient-way-to-display-decoded-video-frames-in-qt?rq=1 -
@Make-it-GREAT-again said in way to show image sequence without using timer or thread:
I cannot use QTimer for timer is an option of my project to limit running time of the entire application
I don't understand what you mean.
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@Christian-Ehrlicher
I use a checkbox to choose using a timer for controlling the running time of my program. It means that the program should be automatically stopped in a time mannually speicified once the timer is selected via the checkbox. QTimer is simply for couting time down. -
@Make-it-GREAT-again said in way to show image sequence without using timer or thread:
It means that the program should be automatically stopped in a time mannually speicified once the timer is selected via the checkbox. QTimer is simply for couting time down.
Again, don't know what you mean here. Don't know what you think the restriction is, if you want to "manually specify a time" for a
QTimeryou can load/reload it with that, stop it, reset, do whatever to it. -
Hi, @JonB. Thanks for your reply. Does that mean I can use several QTimer(s) con-currently for different task in my program.
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What made you think, that there can be only one
QTimerin your whole program? -
@Make-it-GREAT-again
You may use as manyQTimers as you wish. (Probably within reason: I don't know what happens if you create 1,000,000 of them!)
