Pointing Magnifier 2 provides a portable option to zoom in on a specific area, including mouse-click actions, on a page allowing those with impaired vision a unique way to utilize a site.

Pointing Magnifier 2 permits the user to control an area cursor of arbitrary size. The size can be adjusted depending on the pointing accuracy of the specific user.

To interact with a target area, place the area cursor over that target and activate via a mouse button click. It will then bring up that area only magnified, and the cursor is pinned in place. When it is in the magnified state, you have control over the zoomed area via standard mouse pointer actions. Upon performing an action (i.e., clicking, dragging, etc.) in the magnified space, the pointer's location is transposed so that the interaction occurs at the correct position in unmagnified space. After performing an action, the pointing magnifier will return to its original size, and the user resumes control of the area cursor.

Source Code will be available at the author's site.

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Version History for Pointing Magnifier 2 - :
https://depts.washington.edu/acelab/proj/ptgmag/features.html