How to Lock Viewport in AutoCAD: Step-by-Step Guide

To lock a viewport in AutoCAD, select the viewport boundary, then open the Properties palette and set Display Locked to Yes. This prevents zooming or panning inside the viewport while keeping the view fixed.

Syntax

Locking a viewport in AutoCAD involves changing the Display Locked property of the viewport object.

• Display Locked: A property that can be set to Yes or No.
• Yes: Locks the viewport to prevent zoom or pan changes.
• No: Allows zooming and panning inside the viewport.

solidworks

Select viewport boundary -> Properties palette -> Display Locked = Yes

Example

This example shows how to lock a viewport in a layout tab to keep the view fixed.

solidworks

1. Switch to a layout tab where your viewport is.<br>2. Click on the viewport boundary to select it.<br>3. Press <code>Ctrl+1</code> to open the Properties palette.<br>4. Find the <code>Display Locked</code> property.<br>5. Change it from <code>No</code> to <code>Yes</code>.<br>6. Now try to zoom or pan inside the viewport; it will stay locked.

Output

Viewport is locked; zoom and pan inside it are disabled.

Common Pitfalls

Users often forget to select the viewport boundary and instead select objects inside the viewport, which does not lock the view. Another mistake is not opening the Properties palette, so the Display Locked property cannot be changed. Also, locking the viewport does not lock the entire layout or model space, only the viewport's view.

solidworks

Wrong way:
1. Select objects inside viewport
2. Try to set Display Locked (not available)

Right way:
1. Select viewport boundary
2. Open Properties palette
3. Set Display Locked = Yes

Quick Reference

Action	Description
Select viewport boundary	Click on the edge of the viewport in layout tab
Open Properties palette	Press Ctrl+1 or right-click and choose Properties
Set Display Locked to Yes	Locks zoom and pan inside the viewport
Unlock viewport	Set Display Locked to No to allow changes

Key Takeaways

Always select the viewport boundary, not objects inside it, to lock the viewport.

Use the Properties palette to set Display Locked to Yes for locking.

Locking a viewport prevents zoom and pan changes but does not lock the entire layout.

Unlock the viewport by setting Display Locked back to No when needed.

Locking viewports helps maintain consistent views in printed layouts.