Quick Start Guide

Quick Start Guide

Your First Test: Scanner → Notepad

This test proves the core concept — DeviceMocker sends keystrokes to another application, just like a real barcode scanner.

Steps

1. Open Notepad (or any text editor)
2. Open DeviceMocker
3. Go to Devices → click SCAN (Barcode / QR Scanner)
4. On the right panel, click "Coca-Cola 330ml" (5449000000996)
5. You get 3 seconds — quickly click inside Notepad
6. Watch: 5449000000996 appears in Notepad, followed by Enter

What just happened?

DeviceMocker simulated a barcode scanner:

• It typed the barcode digits one by one using the Windows SendInput API
• It pressed Enter at the end (the "suffix")
• Notepad received the input as if you typed it on a physical keyboard
• Your POS/inventory app would receive it the same way

Next Steps

• Try the Virtual Keyboard — send individual keys and shortcuts
• Try the Weighing Scale — send weight values to your app
• Try the Test Sequence Builder — automate multi-step inputs
• Try Batch Scan Mode — fire 10 barcodes in a row to stress-test your app

Understanding the 3-Second Countdown

Most device simulators have a "Send After 3s" button. This is because:

1. DeviceMocker sends keystrokes to the currently focused window
2. When you click a button in DeviceMocker, DeviceMocker has focus
3. The 3-second countdown gives you time to click your target app
4. After 3 seconds, the keystrokes go to whatever window is focused

You can change the countdown duration in Settings → Countdown Seconds.