wx:get-colour-from-user

Lets the user select an arbitrary color though a platform-specific dialog. See also wx:can-get-user-colour?.

• (wx:get-colour-from-user prompt init) -> wx:colour% object or #f
      prompt : string
      init : wx:colour% object or null

  Returns #f if the user cancel the selection or if no platform-specific dialog is available. The prompt string is used as a prompt in the dialog, and init (if it is not null) is used as the initial value in the dialog.