Widget API: UIObject:SetAlpha

Reference e
AddOns WoW API Widget API XML UI Event API WoW Lua Macro API CVars Battle.net HOWTOs Snippets UI tech Categories

Sets the alpha of given object. Alpha is an integer between 0 and 255, 255 being opaque, 0 being transparent.

e.g. MyFrame:SetAlpha(200); makes the frame translucent, more visible than not.