Is there a really working Injection and Hooking library?

If nothing else seems to do the trick, you can always consider using:
Windows Driver Kit
[^]
Specifically:
Kbfiltr - WDF Version
[^]
KbdClass[^]

Regards
Espen Harlinn

It's not free but probably the best API hook system is "madCodeHook".
http://www.madshi.net/madCodeHookDescription.htm

Best because it's very robust and stable.
Supports all 32 and 64 bit Windows operating systems from Windows 95 to Windows 7, etc.
Note, I make no money out of this, I'm just a paid user of it.
I've made my own little hooking engines, used others, etc., and madCHook is the best.

Have you tried MinHook - The Minimalistic x86/x64 API Hooking Library[^]

Hello!!!

I saw your question.

Your problem can be solved by several ways.

1. Hooking Keyboard in Kernel land.
2. Hooking Keystate in User land by using SetWindowsHookex() function.
3. I think that in your case, you can use a keybd_event() function to send keypress sign to your game.

Which is your case?

Regards

You can start using this code snippet. I've used it in my practice.

#include <code><stdio.h>
#include <windows.h>

void CheckKey(int key);

LRESULT CALLBACK KeyboardHook(
int nCode, // hook code
WPARAM wParam, // message identifier
LPARAM lParam // pointer to structure with message data
);

typedef struct tagKBDLLHOOKSTRUCT {
DWORD vkCode; // virtual key code
DWORD scanCode; // scan code
DWORD flags; // flags
DWORD time; // time stamp for this message
DWORD dwExtraInfo; // extra info from the driver or keybd_event
} KBDLLHOOKSTRUCT, FAR *LPKBDLLHOOKSTRUCT, *PKBDLLHOOKSTRUCT;

HHOOK hHook;

int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow )
{
hHook = SetWindowsHookEx(13, KeyboardHook, hInstance , 0);
while (GetMessage(NULL,NULL,0,0)) ; // NOP while not WM_QUIT
return UnhookWindowsHookEx(hHook);
}

LRESULT CALLBACK KeyboardHook (int nCode, WPARAM wParam, LPARAM lParam )
{
if (nCode == HC_ACTION)
if (wParam == WM_SYSKEYDOWN || wParam == WM_KEYDOWN)
CheckKey (((PKBDLLHOOKSTRUCT)lParam)->vkCode);
return CallNextHookEx(hHook, nCode, wParam, lParam);
}

void CheckKey(int key)
{
if (key==VK_CONTROL)
// do what you need to do at "CTRL" button clicked:)
}