[Dev-C++] Enter button in EDIT control

      case WM_COMMAND:
        {
          switch( LOWORD( wParam ) )
          {
            case HWND_BUTTON_SENDMSG:
              {
                if( GetWindowTextLength( GetDlgItem(hwnd, HWND_EDIT_TYPEMSG) 
) > 99 )
                {
                  MessageBox(hwnd,"Message Length Too Large","ERROR",MB_OK);
                  break;
                }
                else if( GetWindowTextLength( GetDlgItem(hwnd, 
HWND_EDIT_TYPEMSG) ) == 0 )
                  break;

                char buffer[100];
                GetWindowText( GetDlgItem(hwnd, HWND_EDIT_TYPEMSG), buffer, 
100 );
                if( strcmp( buffer, "/cls" ) == 0 )
                {
                  SendMessage( GetDlgItem(hwnd,HWND_EDIT_SEEMSG), 
WM_SETTEXT, (WPARAM)0, (LPARAM)"" );
                  SendMessage( GetDlgItem(hwnd,HWND_EDIT_TYPEMSG), 
WM_SETTEXT, (WPARAM)0, (LPARAM)"" );
                  SetFocus( GetDlgItem(hwnd,HWND_EDIT_TYPEMSG) );
                  break;
                }
                c->sendMessage( buffer );
                SendMessage( GetDlgItem(hwnd,HWND_EDIT_TYPEMSG), WM_SETTEXT, 
(WPARAM)0, (LPARAM)"" );
                SetFocus( GetDlgItem(hwnd,HWND_EDIT_TYPEMSG) );
              }
              break;

            case HWND_EDIT_TYPEMSG:
              {
                // check for enter button
              }
          }
        }
        break;

Here is my WM_COMMAND for my controls. How can i test for the enter button 
in the
HWMD_EDIT_TYPEMSG control where the comment is?

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