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Mouse Control

Mouse control in the program is oriented towards using one main button – the left one
Everywhere in the application, a single click is used
The right button and wheel are used for auxiliary operations

Default Mouse Button Functions:

Left Button

The left button can be used to select any tool in the application
The behavior of the left button and mouse wheel can be changed in the Settings

Right Button, hold

Shift
Press and hold (do not release) the right mouse button
When moving the mouse, the image on screen will be shifted

Notes:

Right and Left Buttons , hold

Rotation

Image rotations in the application depend on the selected material:

Mouse Wheel

Scrolling

Hold (press and do not release) the mouse wheel, move the mouse

Move the mouse to change the window width/level

Mouse and Keyboard Key

Hold and do not release the key on the keyboard

, then left-click on the image - move the 3D cursor to that point

While holding (press and do not release) the key on the keyboard, regardless of the previously selected tool:

+ Left Button - Window Width/Level


+ Right Button - Zoom In/Out

Application:

The right mouse button, by default, always controls Shifting
Thus, you can, regardless of the selected tool, temporarily and quickly switch to the main image processing functions: and return to the previously selected tool by releasing the Shift key on the keyboard
See also
Vidar Dicom Viewer Help 3.0, © 2026 PO Vidar