GLaser G3 Python Automation

A Python-based automation tool for modifying text, barcode, and QR code objects in GLaser, the laser marking software used with Gweike G3 laser system.

Overview

This project allows you to automatically update the content of existing objects in an open GLaser project using Python.

The following object types are supported:

• Text objects
• Barcode objects
• QR code objects

Objects are selected by their position in the GLaser object list. Their content is then updated directly through the Windows UI Automation interface.

This can be useful for automating serial numbers, product labels, identification codes, and individual QR codes.

Features

• Connects to an already running GLaser instance.
• Automatically brings the GLaser window to the foreground.
• Selects objects by their index in the object list.
• Updates text, barcode, and QR code content.
• Uses Windows UI Automation instead of simulated mouse or keyboard input.
• Provides a simple function call with three parameters.

Important: The script only modifies object content. It does not start a preview, marking, or engraving process.

Requirements

• Windows
• Gweike laser system with GLaser (for G3) installed
• Python 3
• An open GLaser project

Install the required Python packages:

pip install pywinauto pywin32

Usage

The main function accepts three parameters:

update_glaser_object(object_type, object_index, new_content)

Parameter	Description
object_type	"Text", "Barcode", or "QR-Code"
object_index	Object position in the GLaser list, starting at 0
new_content	The new content to write into the object

Examples

Update a text object:

update_glaser_object("Text", 4, "12345")

Update a barcode:

update_glaser_object("Barcode", 1, "123456789")

Update a QR code:

update_glaser_object("QR-Code", 2, "https://example.com")

Importing the function

If the Python code is saved as glaser.py, you can import it into another Python script:

from glaser import update_glaser_object

update_glaser_object("Text", 4, "12345")

How it works

The script uses:

• pywinauto (UIA backend): Accesses GLaser interface elements.
• pywin32: Activates the GLaser application window through the Windows API.
• Windows UI Automation: Selects objects and updates their associated input fields.

The automation follows these steps:

1. Connects to the running GLaser application.
2. Brings the GLaser window to the foreground.
3. Selects the requested object.
4. Locates the corresponding content input field.
5. Writes the new content.
6. Moves focus to another property field to commit the change.
7. Deselects the object.

Compatibility and limitations

• GLaser must already be running.
• A project must already be open.
• Object indexes refer to the current order in the GLaser object list.
• The automation IDs are based on GLaser version GLaser_v2.0.65_2026.04.24.
• Changes to the GLaser interface may require adjustments to the automation IDs.
• The script does not start a laser marking or engraving operation.

Safety recommendation

Always create a backup of your GLaser project before running automated modifications.

ToDo / Planned Features

Some ideas and features I would like to add in the future:

• Test for project names in GLaser.

• Add the option to select from multiple GLaser project files.

• Add the ability to start the laser marking process directly from Python.

More features and improvements may be added.

License

This project is licensed under the MIT License – see the LICENSE file for details.

You are free to use, modify, and distribute this software, including for commercial purposes, provided that the original copyright and license notice are included.