kCMTextFormatDescriptionColor_Alpha
The color value for the alpha is a number.
Declaration
let kCMTextFormatDescriptionColor_Alpha: CFStringDiscussion
The value needs to be SInt8 for 3G and is not applicable for QuickTime text.
See Also
Description Constants
kCMTextFormatDescriptionColor_RedkCMTextFormatDescriptionColor_GreenkCMTextFormatDescriptionColor_BluekCMTextFormatDescriptionRect_TopkCMTextFormatDescriptionRect_LeftkCMTextFormatDescriptionRect_BottomkCMTextFormatDescriptionRect_RightkCMTextFormatDescriptionStyle_StartCharkCMTextFormatDescriptionStyle_FontkCMTextFormatDescriptionStyle_FontFacekCMTextFormatDescriptionStyle_ForegroundColorkCMTextFormatDescriptionStyle_EndCharkCMTextFormatDescriptionStyle_HeightkCMTextFormatDescriptionStyle_AscentkCMTextFormatDescriptionStyle_FontSize