How to use Windows Message Loop and Qt Application Exec?

[JonB]

@YJCN
You have to do more than just comment out the break, if that's what you're saying. If that's all you do the ::GetMessage() loop will never exit, and your code will never return from on_pushButton_2_clicked(), e.g. you cannot press it again to take another photo. Presumably you need to find out whatever is the final message your camera issues on taking a photo and exit the loop once that has been received.

[YJCN]

@JonB Yes. I just use a five times for loop to solve it . ^_^

[JonB]

@YJCN
I don't know if your response is serious or amused. Doing it "five times" is very flaky. Isn't there a particular message number you get which you need to wait for to indicate it's now OK to leave the loop?