[Qt-interest] launch MacOS bundle

[Serge]

Hello,

i need to launch MacOS bundle from my QT program.
If i use QProcess::startDetached and launching executable, located in 
/Contents/MacOS, it is launching, but its button in taskbar have default 
icon instead of custom icon, located in /Contents/Resources.

Same result i receive if launch executable from command line.

How to launch MacOS bundle, so that it would have needed icon in task 
bar (work as bundle, not as single executable)?

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Thank you!