Operating Keyboard using C

[Harika]

Dear sir/madam,

Would you tell me the header files and functions required to operate keyboard, i.e when i click a button A in the key board i must get the letter B simultaneously anf if i click the button ENTER key it must work as similar to SHIFT key and vice versa.
I will be so glad if u show some example C program accordingly.

Thank you.

[Harika]

Dear sir/madam,

Would you tell me the header files and functions required to operate keyboard, i.e when i click a button A in the key board i must get the letter B simultaneously anf if i click the button ENTER key it must work as similar to SHIFT key and vice versa.
I will be so glad if u show some example C program accordingly.

Thank you.

Can any of you tel me about the header files and functions needed to the above task.

[ltgbau]

search and use hook keyboard
maybe u need it