How to know program

[wirasto]

How to know program for open file ? So far I use QDesktopServices::openUrl. But, it not have any signal for know the program is finished / exit like in QProcess :(

[ChrisW67]

AFAIK there is no Qt interface that can tell you the associated application (there can be many) so the code will be platform, and possibly desktop environment, specific. You would have to find the associated program yourself and then code to run and wait for completion.