Returns the Component that should receive the focus when a
JInternalFrame is selected for the first time. Once the JInternalFrame
has been selected by a call to
setSelected(true)
, the
initial Component will not be used again. Instead, if the JInternalFrame
loses and subsequently regains selection, or is made invisible or
undisplayable and subsequently made visible and displayable, the
JInternalFrame's most recently focused Component will become the focus
owner. The default implementation of this method returns the
JInternalFrame's default Component to focus.
Returns:
the Component that should receive the focus when frame is
selected for the first time, or null if no suitable Component
can be found
Parameters:
-
frame - the JInternalFrame whose initial Component is to be
returned
Throws:
-
IllegalArgumentException - if window is null
See Also:
JInternalFrame.getMostRecentFocusOwner()
,