markup will be inserted in its entirety and must be nul-terminated
and valid UTF-8. Emits the signalGtk.TextBuffer::insert-text signal,
possibly multiple times; insertion actually occurs in the default handler
for the signal. iter will point to the end of the inserted text on return.
Inserts the text in markup at position iter.
markup will be inserted in its entirety and must be nul-terminated and valid UTF-8. Emits the signalGtk.TextBuffer::insert-text signal, possibly multiple times; insertion actually occurs in the default handler for the signal. iter will point to the end of the inserted text on return.