InterruptMsg class

Message sent when the runtime receives a terminal interrupt.

This is distinct from QuitMsg in that it represents an external interrupt request rather than a programmatic quit command.

By default, pressing Ctrl+C produces this message instead of a Ctrl+C KeyMsg. Disable that behavior with ProgramOptions(sendInterrupt: false) or ProgramOptions.withoutInterruptMsg() if a model needs legacy key-based handling.

The model can handle this to:

• Prompt for confirmation before quitting
• Save state before exiting
• Cancel a long-running operation
• Ignore the interrupt entirely

Example

@override
(Model, Cmd?) update(Msg msg) {
  return switch (msg) {
    InterruptMsg() when hasUnsavedChanges => (
      copyWith(showConfirmDialog: true),
      null,
    ),
    InterruptMsg() => (this, Cmd.quit()),
    _ => (this, null),
  };
}

Inheritance

• Object
• Msg
• InterruptMsg

Constructors

InterruptMsg()

Creates an interrupt message.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited