Creates a new GtkTextView widget displaying the buffer
buffer. One buffer can be shared among many widgets.
buffer may be NULL to create a default buffer, in which case
this function is equivalent to gtk_text_view_new(). The
text view adds its own reference count to the buffer; it does not
take over an existing reference.
Creates a new GtkTextView widget displaying the buffer buffer. One buffer can be shared among many widgets. buffer may be NULL to create a default buffer, in which case this function is equivalent to gtk_text_view_new(). The text view adds its own reference count to the buffer; it does not take over an existing reference.