Crosshair software is a lightweight, easy-to-use screen auxiliary tool designed to provide users with accurate screen positioning and measurement functions. The main functions and features are as follows: Guideline style selection: Crosshair: Display a cross-shaped alignment mark with adjustable thickness and length Dot guideline: Display a small dot as an alignment reference Circular guideline: Display a circular alignment mark with adjustable size 2. Operation mode: Fixed mode: The guideline is fixed at the screen position Follow mode: The guideline follows the mouse movement Drag mode: You can manually drag the guideline to the required position 3. Auxiliary functions: Reference line display: You can display horizontal and vertical full-screen reference lines Real-time coordinates: Display the current X and Y coordinate positions of the guideline Control panel: A draggable and minimizable control interface 4. Custom options: Guideline color: You can customize the color of the guideline Line thickness: You can adjust the thickness of the guideline Guideline length: You can adjust the display length of the guideline Circle radius: You can adjust the size of the circle in circular guideline mode Transparency: You can adjust the transparency of the guideline