# APERTURE Command
[GstarCAD 2022](Help%20System/GSTARCAD/2022/Index.md) → [Commands](Help%20System/GSTARCAD/2022/Commands/(Commands).md) → [A](Help%20System/GSTARCAD/2022/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.
