Sent to a control when it becomes active control focus.
# Metadata
Platforms: desktop, server, mobile OS: mac, windows, linux, ios, android Introduced: 1.0 Security:
# Syntax
focusIn
# Examples
on focusIn -- boldface the text of the control set the textStyle of the target to "bold" end focusIn
# Description
Handle the focusIn message if you want to perform preparation or do other tasks when a control receives the focus.
If the control is an unlocked field or a button whose menuMode is "comboBox", the openField message is sent to it instead of the focusIn message.
A locked field receives the focusIn message when the user tabs to it or otherwise makes it active control focus, or when text in it is selected by a handler.
# Tags
ui,
# See