What is the keycode for enter on mac os?

Question

macOS

Hello.
Tell me please. What is the key code for enter on mac os?
I searched and found 2 different values:
13 - doesn't work
76 - can't check

Answer 1

Key Down
  Characters:	
  Unicode:	3 / 0x3
  Keys:		⌅
  Key Code:	76 / 0x4c
  Modifiers:	2097408 / 0x200100

Key Down
  Characters:	
  Unicode:	13 / 0xd
  Keys:		↵
  Key Code:	36 / 0x24
  Modifiers:	256 / 0x100

1. enter, which is only available on full-size apple claws.
2. return, which is on all keyboards and usually means the usual enter.

Answer 2

What does "can't check" mean?
Make a program that when you press any key displays its code. This is the most reliable way to find out, given your environment.
PS

Answer 3

Here is the info taken from
https://stackoverflow.com/questions/3202629/where-...

/* MacRoman character codes*/
enum {
  kNullCharCode                 = 0,
  kHomeCharCode                 = 1,
  kEnterCharCode                = 3,
  kEndCharCode                  = 4,
  kHelpCharCode                 = 5,
  kBellCharCode                 = 7,
  kBackspaceCharCode            = 8,
  kTabCharCode                  = 9,
  kLineFeedCharCode             = 10,
  kVerticalTabCharCode          = 11,
  kPageUpCharCode               = 11,
  kFormFeedCharCode             = 12,
  kPageDownCharCode             = 12,
  kReturnCharCode               = 13,
  kFunctionKeyCharCode          = 16,
  kCommandCharCode              = 17,   /* glyph available only in system fonts*/
  kCheckCharCode                = 18,   /* glyph available only in system fonts*/
  kDiamondCharCode              = 19,   /* glyph available only in system fonts*/
  kAppleLogoCharCode            = 20,   /* glyph available only in system fonts*/
  kEscapeCharCode               = 27,
  kClearCharCode                = 27,
  kLeftArrowCharCode            = 28,
  kRightArrowCharCode           = 29,
  kUpArrowCharCode              = 30,
  kDownArrowCharCode            = 31,
  kSpaceCharCode                = 32,
  kDeleteCharCode               = 127,
  kBulletCharCode               = 165,
  kNonBreakingSpaceCharCode     = 202
};