Drawing Lines on Screens with AutoHotkey (Graphics Tips)

Although a Little Tricky, You Can Add and Manipulate Windows Graphics on Your Computer Screen with AutoHotkey

In the blog “Capturing Computer Screen Measurements (An AutoHotkey Tool)“, I added a calibration method to an on-screen ruler for extracting distances from any image. It works well for capturing straight-line measurement from a computer display. However, when following the mouse cursor, it lacked a discernible tracking line between the start and stop points.

The green line anchors at the start point and moves with the mouse cursor.

With a search, I found an old post about how to generate a line on-screen. I copied the code and turned it into a function for displaying the green line shown in the image above.

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