[ Visual ] Level Hack and Exp Hack

Just download cheat engine or some language, like Delphi or c++
Code:
class cPlayerInfo
{
public:
DWORD iEXP; //0x0000
char _0x0004[12];
__int32 iLevel; //0x0010
__int32 iSoulPoints; //0x0014
__int32 iMagicLevel; //0x0018
char _0x001C[100];
};//Size=0x0080
Code:
Tibia.exe + 0x4380D8
Any question, ask 
Thanks, but still i dont get it why those visual hacks... just for screenshot or what?
What does this do?? Just change visually changes lvl and ml ?