WebUIControl.LockHorizontal
From Xojo Documentation
Read-Only Property (As Boolean )
BooleanValue = aWebUIControl.LockHorizontal
New in 2020r1
Supported for all project types and targets.
New in 2020r1
Supported for all project types and targets.
LockHorizontal overrides LockLeft and LockRight. It allows you to proportionally lock a control's position to the center of its parent control (or web page).
Notes
For example, if you place a control in the center of the page and sets both LockHorizontal and LockVertical, the control will stay in the center of the page.