How does unity focus GUI when different keys are pressed?

The following script enables a text field, the last function enables it using either the enter key or forward slash key. The problem is you need to press forward slash twice, just to get it to work the same way you would by pressing enter.

Does unity do anything with GUI focus when enter is pressed as opposed to when slash or any other key is pressed?

Thanks

 void EventLogWindowContent (int id){
             
     if( displayInputField ){
         GUI.SetNextControlName(eventLogWindowName);
         input = GUI.TextField( someRect, input );

         if( Event.current.Equals( Event.KeyboardEvent( "None" ) ) && Time.frameCount > inputDisplayedOnFrame + 1 ){
             ProcessInputField();
         }
     }

     GUI.depth = 9;
 }

 void ProcessInputField(){
     //do some stuff

     displayInputField = false;
     input = "";
     inputDisplayedOnFrame = 0;
     GUI.UnfocusWindow();
 }

 void DisplayInputField(){
     //  ------------ LOOK AT THE FOLLOWING LINE - depicts only difference in key pressed ----------------
     if( ( Input.GetKeyDown( Chat ) || Input.GetKeyDown( KeyCode.Slash ) ) && !pGUI.displayInputField ){
         pGUI.displayInputField = true;
         pGUI.inputDisplayedOnFrame = Time.frameCount;
     }
 }