# APERTURE Command
[GstarCAD 2024](Help%20System/GSTARCAD/2024/Index.md) → [Commands](Help%20System/GSTARCAD/2024/Commands/(Commands).md) → [A](Help%20System/GSTARCAD/2024/Commands/A/(A).md)
## Function Description:
This command is used to control the size of the object snap target box.
## Command Access:
> **Icon:** /
> **Menu:** /
> **Ribbon:** /
> **Toolbar:** /
> **Command:** APERTURE
> **Alias:** /
## Command Prompts:
```
Enter new value for APERTURE <10>:
```
Object snaps become active when the object snap target box passes over an object location such as an intersection or endpoint. Users can get a bigger Aperture size by setting a higher value for APERTURE system variable.
The APBOX system variable controls whether the object snap target box is displayed. These settings can also be made in “Draw” label in the “Options” dialog box.
To change the object selection pickbox that is displayed at the Select Object prompt, use the PICKBOX system variable.
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**Related References：**
- [Commands about Object Snap](Help%20System/GSTARCAD/2024/Commands/00%20Command%20Groups/Commands%20about%20Object%20Snap.md)
**Related Concepts：**
- [About Using Object Snaps](Help%20System/GSTARCAD/2024/Commands/02%20Concepts/About%20Using%20Object%20Snaps.md)
**Related Tasks：**
- [To Display the Object Snap Menu](Help%20System/GSTARCAD/2024/Commands/01%20Procedures/To%20Display%20the%20Object%20Snap%20Menu.md)
- [To Set Running Object Snaps](Help%20System/GSTARCAD/2024/Commands/01%20Procedures/To%20Set%20Running%20Object%20Snaps.md)
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[Original help](https://www.gstarcad.net/help/GstarCAD_2024_en-US/detail/commandReferences/APERTURE.html) · © Gstarsoft Co., Ltd.