Label.Bold

From Xojo Documentation

Property (As Boolean )
aLabel.Bold = newBooleanValue
or
BooleanValue = aLabel.Bold

Supported for all project types and targets.

If True, applies the bold style to the control’s caption and/or its text content if any.

Controls and classes implementing the Bold property

BevelButton
Checkbox
Graphics
GroupBox
Label
ListBox
PopupMenu
PushButton
RadioButton
ReportField
ReportLabel
StringShape
StyleRun
TextEdit

Example

The following code in the Open event of the control sets the text to bold.

Me.Bold = True