Moves the #GtkSourceCompletionInfo to @iter. If @iter is %NULL @info is moved to the cursor position. Moving will respect the #GdkGravity setting of the info window and will ensure the line at @iter is not occluded by the window.
a #GtkTextView on which the info window should be positioned.
a #GtkTextIter.
See Implementation
Moves the #GtkSourceCompletionInfo to @iter. If @iter is %NULL @info is moved to the cursor position. Moving will respect the #GdkGravity setting of the info window and will ensure the line at @iter is not occluded by the window.