---

Introduction to Run Loops

Organization of This Document

This programming topic contains the follow articles:

• “Run Loops” provides an overview of what a run loop is and how it operates.

• “Input Modes” describes how input modes are used by run loops to categorize input sources.

• “Getting the Run Loop” describes how to obtain the current run loop object.

• “Adding Input Sources” describes how to add input sources to a run loop.

• “Running the Run Loop” describes the ways you enter the run loop.

---