Users cannot control whether or not they see this block.

2 uses of BLOCK_CUSTOM_FIXED
block_admin_configure in modules/block/block.admin.inc
Form constructor for the block configuration form.
block_block_list_alter in modules/block/block.module
Implements hook_block_list_alter().

File

modules/block/block.module, line 16
Controls the visual building blocks a page is constructed with.

Code

define('BLOCK_CUSTOM_FIXED', 0);