set_accel_group
Description:
Specifies an accel_group to add the menu items accelerator to (this only applies to stock items so a stock item must already be
set, make sure to call set_use_stock and
set_label with a valid stock item first).
If you want this menu item to have changeable accelerators then you shouldnt need this (see ImageMenuItem.from_stock).
Parameters:
| this | |
| accel_group |
the AccelGroup |