WebMessageDialog.ActionButton
From Xojo Documentation
Read-Only Property (As WebMessageDialogButton )
WebMessageDialogButtonValue = aWebMessageDialog.ActionButton
New in 2020r1
Supported for all project types and targets.
New in 2020r1
Supported for all project types and targets.
The default button for the WebMessageDialog.
Notes
Even though this property is read-only, it has a WebMessageDialogButton instance assigned to it which you can modify.
The Return key is automatically mapped to this button though you can change that but altering the Default property of the button.
Sample Code
This example changes the button to be a non-default button and changes the caption of the ActionButton to "OK":
myDialog.ActionButton.Default = False
myDialog.ActionButton.Caption = "OK"
myDialog.ActionButton.Caption = "OK"
See Also
WebMessageDialogButton class, AlternateActionButton and CancelButton properties.