Dear all,<br><br>Maybe it's not the proper place to ask this question. But if anyone knows the answer, please tell me, thanks in advance.<br><br>There will be a black rectangle border around GtkComboBox by default, and I want to hide it.<br>
<br>I have tried several ways such as set_border_width and use gtkrc, but I just didn't make it:(<br><br>If anyone knows, please tell me, thanks very much!<br clear="all"><br>-- <br>Best Regards,<br><br>Zhihai Wang<br>