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 # ShowRuler 

 Last update: 17.07.2025 

## Description

Shows the rulers inside the viewer.

Returns 1 if no error has occurred, 0 otherwise.

## Syntax

*object*.ShowRuler(short *bShowRuler*) As Short

- *object*: Virtual Human Vision Lab object
- *bShowRuler*: boolean being **True** to show or False else

## Example

```
Sub main()
Dim Error As Integer
Set VirtualHumanVisionLab = CreateObject("VisionLabViewer.Application")
Error = VirtualHumanVisionLab.Show(True)
Error = VirtualHumanVisionLab.OpenFile("C:\TailLampVE.xmp")
'Show the rulers
Error = VirtualHumanVisionLab.ShowRuler(True)
End Sub


```