ListBox.HeaderHeight
From Xojo Documentation
Property (As Integer )
aListBox.HeaderHeight = newIntegerValue
or
IntegerValue = aListBox.HeaderHeight
New in 2009r1
Supported for all project types and targets.
or
IntegerValue = aListBox.HeaderHeight
New in 2009r1
Supported for all project types and targets.
The height of the header row in pixels.
Example
This example displays the height of the header row. It is in the Action event of a button control.