DesktopColorPicker.HasAlpha

From Xojo Documentation

Property (As Boolean )
aDesktopColorPicker.HasAlpha = newBooleanValue
or
BooleanValue = aDesktopColorPicker.HasAlpha

New in 2021r1

Supported for all project types and targets.

If True, the color selected will be returned with an alpha channel.

Notes

The default value is True.