external-overlay

An external Python overlay that attaches/hooks onto a given Windows application and draws on top of it.

• Uses the DearPyGui (DPG) GUI framework for drawing (DX11)
• Uses the PyWin32 library (Windows API) for attaching to the target application

Installation

Install the following dependencies:

• Python 3.8+
• pip install -r requirements.txt

Usage

from external_overlay import ExternalOverlay

def ui(tar_hwnd=None):
    with dpg.window():
        dpg.add_text("Hello World")

overlay = ExternalOverlay("Untitled - Notepad", ui)
overlay.start()

• Create a new ExternalOverlay object with the window name and a UI function as parameters
• The UI function should contain the DPG components to overlay
• Call start() to start the overlay render loop