Dont know hook prestashop 1.7

[AntikovE]

Hello, I'm doing my module for prestashop 1.7.1.2. At me a problem of an output of the module, on the second screenshot it as I it deduced, and on the first as though it looked if in the necessary place it was deduced, I ask prompt what to use.

Code:

public function hookdisplayBackOfficeHeader($params)
{
   $html = '<br /><br /><br /><br /><br /><br /><br /><br /><br /><br />';
   if (isset($_GET['updatemanufacturer']))
   {
      //do something
   }
}

Thank u for helping!

Edited July 25, 2017 by AntikovE (see edit history)

[vekia]

to be honest, i dont know what is the issue.

you created module with support of hook hookdisplayBackOfficeHeader($params)

you use there code:
 

   $html = '<br /><br /><br /><br /><br /><br /><br /><br /><br /><br />';
   if (isset($_GET['updatemanufacturer']))
   {
      //do something
   }

and the result is 1.png ?

[AntikovE]

Result this:

need this:

I dont know how insert my form before or after Admin Manufacturer Controller form, without overriding.

But ty for answer

[AntikovE]

Pls help me