DOS MiniMag

DOS MiniMag is a lightweight mouse-adjacent magnifier for quick inspection without losing focus or hunting for the Windows Magnifier window.

First-pass behavior

• Borderless 480x240 lens by default
• Always on top
• Follows the cursor with a down-right offset
• Flips left or upward near screen edges
• Click-through, so the app underneath still receives clicks
• Captures pixels around the pointer and scales them with crisp nearest-neighbor zoom
• Freezes and unfreezes the current view
• Lives in the system tray with a small control menu

Controls

• Alt+M: show or hide the lens
• F13: hold to peek, release to hide again
• Mouse Button 4: hold to peek, release to hide again
• Mouse Button 5: freeze or unfreeze
• Alt++: zoom in
• Alt+-: zoom out
• Alt+Numpad +: zoom in
• Alt+Numpad -: zoom out
• Alt+F: freeze or unfreeze
• Alt+1: 2x zoom
• Alt+2: 3x zoom
• Alt+3: 4x zoom
• Tray menu: show/hide, freeze, zoom, size, exit

Run

From this folder:

dotnet run

To publish a single-file Windows executable:

dotnet publish -c Release -r win-x64 -p:PublishSingleFile=true --self-contained false

The published executable will be under bin\Release\net8.0-windows\win-x64\publish.

Razer Basilisk mapping idea

MiniMag supports common thumb buttons without Synapse:

• Mouse Button 4: hold-to-peek
• Mouse Button 5: freeze or unfreeze

If you do use Razer Synapse, these mappings also work well:

• Side button 1: Alt+M to show or hide the lens
• Side button 2: Alt+F to freeze or unfreeze
• Side button 3 / clutch: F13 for hold-to-peek
• DPI clutch or wheel tilt: Alt+Numpad + / Alt+Numpad - for zoom

This keeps MiniMag brand-neutral and avoids a global mouse hook, which is better for responsiveness.