GtkEditable::delete_text
void delete_text(int
start_pos, int
end_pos);
Deletes a sequence of characters. The characters that are
deleted are those characters at positions from
start_pos up to, but not including
end_pos. If end_pos
is negative, then the the characters deleted will be those
characters from start_pos to the end of the text.
例 50. Deleting all text from an entry
$editable->delete_text(0, -1);
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例 51. Deleting all selected text from the editable
$bounds = $editable->get_selection_bounds();
if ($bounds !== false) {
$editable->delete_text($bounds[0], $bounds[1]);
}
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参照:
delete_selection()