MessageBox and MessageDialog use the application icon

Status: Fixed
Fixed in: v26.10.4
Area: desktop
Source discussion: https://forum.objo.dev/d/1399-messagebox-dialogs-show-with-objo-icon-instead-of-application-icon
Last updated: 2026-10-30

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Public summary

On Windows, dialogs opened by MessageBox() or MessageDialog.Show() can display the Objo icon in their title bar even when the application has its own custom icon. They should display the application's icon consistently with its main window.

Both MessageBox overloads and the desktop MessageDialog are covered by this bug.