How to prevent many instances of same application from running ?

[AyushExel]

I have built an application that plays audio but when I select multiple audio files and press "Enter" , each audio file is played by different instance of same application. I want to prevent multiple copies of my application from running at the same time. Instead I want that if many audio file are run, they should be added in the media player's playlist. How can this be done ?

[Lesiok]

Look at this solution

[AyushExel]

Look at this solution

Well QtSingleApplication is not compatible with Qt 5.

[Lesiok]

Read this article

[AyushExel]

Read this article

So I guess that QtLocalPeer is the replacement for QtSingleApplication . Am I correct ? If so, can u provide an example code which shows the usage of QtlocalPeer ?

[Lesiok]

No, I can't. I do not work with Qt5 only Qt4.
As you probably noticed it is the solution used in QtCreator. Sources of QtCreator are generally available so look for them.

[anda_skoa]

As far as I understood the linked page, the API is still QtSingleApplication, just a newer implementation based on QtLocalPeer.

Cheers,
_