wails/mkdocs-website/docs/en/API/application_dialogs.md

!!! warning "MacOS Dialogs and Application Lifecycle"

If you show dialogs during application startup or file open events, you should set `ApplicationShouldTerminateAfterLastWindowClosed` to `false` to prevent the application from terminating when those dialogs close. Otherwise, the application may quit before your main window appears.

```go
app := application.New(application.Options{
    Mac: application.MacOptions{
        ApplicationShouldTerminateAfterLastWindowClosed: false,
    },
    // ... rest of options
})
```

Alternatively, you can show startup dialogs after the main window has been displayed:

```go
var filename string
app.OnApplicationEvent(events.Common.ApplicationOpenedWithFile, func(event *application.ApplicationEvent) {
	filename = event.Context().Filename()
})

window.OnWindowEvent(events.Common.WindowShow, func(event *application.WindowEvent) {
    application.InfoDialog().
        SetTitle("File Opened").
        SetMessage("Application opened with file: " + filename).
        Show()
})
```

ShowAboutDialog

API: ShowAboutDialog()

ShowAboutDialog() shows an "About" dialog box. It can show the application's name, description and icon.

    // Show the about dialog
    app.ShowAboutDialog()

Info

API: InfoDialog()

InfoDialog() creates and returns a new instance of MessageDialog with an InfoDialogType. This dialog is typically used to display informational messages to the user.

Question

API: QuestionDialog()

QuestionDialog() creates and returns a new instance of MessageDialog with a QuestionDialogType. This dialog is often used to ask a question to the user and expect a response.

Warning

API: WarningDialog()

WarningDialog() creates and returns a new instance of MessageDialog with a WarningDialogType. As the name suggests, this dialog is primarily used to display warning messages to the user.

Error

API: ErrorDialog()

ErrorDialog() creates and returns a new instance of MessageDialog with an ErrorDialogType. This dialog is designed to be used when you need to display an error message to the user.

OpenFile

API: OpenFileDialog()

OpenFileDialog() creates and returns a new OpenFileDialogStruct. This dialog prompts the user to select one or more files from their file system.

SaveFile

API: SaveFileDialog()

SaveFileDialog() creates and returns a new SaveFileDialogStruct. This dialog prompts the user to choose a location on their file system where a file should be saved.

OpenDirectory

API: OpenDirectoryDialog()

OpenDirectoryDialog() creates and returns a new instance of MessageDialog with an OpenDirectoryDialogType. This dialog enables the user to choose a directory from their file system.