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  1. Qt
  2. QTBUG-135882

QFileDialog::getOpenFileNames returns immediately when GUI created via mixed Q(Core)Application

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Details

    • Bug
    • Resolution: Unresolved
    • P1: Critical
    • None
    • 6.9.0
    • Widgets: Widgets and Dialogs
    • None
    • macOS 15.4
    • macOS

    Description

      I have an application which can be started as GUI or scripting. Hence I followed the Qt documentation to start it as GUI (QApplication) or scripting (QCoreApplication) depending on the command line arguments.
      This all works perfectly on Linux and macOS, but under macOS 15.4 it doesn't work anymore, in the sense that QFileDialog::getOpenFileNames() (GUI) is returning an empty file list without even showing up. 
      I have attached a boiled down example which reproduces this, both for Intel and Apple Silicon.

      macOS 15.4 (24E248)
      Xcode 16.3
      xcode-select version 2409

      Qt 6.9 (home-brew (Apple Silicon) / macports (Intel))

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            owolff Oliver Wolff
            sa35 Andreas Suter
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            Dates

              Created:
              Updated:

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