Keyboard hooking ???

Keyboard hooking ??? 17.10.2004. u 17:52 · pre 268 meseci #1

Malo me je zanimalo ovo pa sam guglao nasao neke kodove, prilagodio i sad ne znam sta sam uradio ... lol !

Evo koda:

Code:

#include <windows.h>
#include "resource.h"

class MYHOOKDATA

{

public:
    int nType;
    HOOKPROC hkprc;
    HHOOK hhook;
} ;

LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{

    static int c = 0;

    MYHOOKDATA keyboard;

    keyboard.nType = WH_KEYBOARD;
    keyboard.hkprc = KeyboardProc;

    return CallNextHookEx(keyboard.hhook, nCode, wParam, lParam);


}

BOOL CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{

    switch(Message)
    {

        case WM_INITDIALOG:

        SetWindowsHookEx( WH_KEYBOARD, KeyboardProc,(HINSTANCE) NULL, GetCurrentThreadId());

        break;

        case WM_CLOSE :

            DestroyWindow (hwnd);
            break;

        case WM_DESTROY:
            PostQuitMessage (0);
            break;

        default:
            return FALSE;
    }
    return TRUE;
}

int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    return DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, DlgProc);
}

E sad me zanima da li ovaj program uopste radi, tj da li prati poruke tastature ... i ako radi kako da npr sve sto je kucano prosledim na neki Edit box ....

tnx

Re: Keyboard hooking ??? 17.10.2004. u 18:03 · pre 268 meseci #2

U KeyboardProc funkciju ubaci kod koji hoces (npr. da se upisuje u neki Edit box). nCode ti je kod tastera (za alfanumericke tastere ASCII).

Potpis

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-Trump je svetla tačka u USA blatu
-Elon Musk, možda najpametniji i najtrezveniji Amerikanac

Re: Keyboard hooking ??? 18.10.2004. u 13:19 · pre 268 meseci #3

E ok, progy radi ... mislim prati poruke tastature ! Ali imam problem kod linije koja je predstavljena kao komentar ( pogledaj kod,dole), kako da izvedem da sve sto je ukucano salje na neki editbox ... tnx

Code:

#include <windows.h>
#include "resource.h"

class MYHOOKDATA

{

public:
    int nType;
    HOOKPROC hkprc;
    HHOOK hhook;
} ;

LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    MYHOOKDATA keyboard;

    keyboard.nType = WH_KEYBOARD;
    keyboard.hkprc = KeyboardProc;



    HWND hwnd = FindWindow(NULL,"Dialog");

    char key = (char) nCode;

    //SetDlgItemText(hwnd,1000,key);

    return CallNextHookEx(keyboard.hhook, nCode, wParam, lParam);

}

BOOL CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{

    switch(Message)
    {
        case WM_INITDIALOG:

        break;

        case WM_CLOSE :

            DestroyWindow (hwnd);
            break;

        case WM_DESTROY:
            PostQuitMessage (0);
            break;

        default:
            return FALSE;
    }
    return TRUE;
}

int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{

    SetWindowsHookEx( WH_KEYBOARD, KeyboardProc,(HINSTANCE) NULL, GetCurrentThreadId());

    return DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, DlgProc);
}

Dobijam gresku: D:\Documents and Settings\`and\Desktop\Exe Tool\Exe Tools.cpp(33) : error C2664: 'SetDlgItemTextA' : cannot convert parameter 3 from 'char' to 'const char *'

Verovatno gresim negde oko pokazivaca ili slicno, jer ih nisam bas razumeo ... pa ako moze help ... tnx !

Re: Keyboard hooking ??? 18.10.2004. u 19:29 · pre 268 meseci #4

Problem je u tome sto funkcija uzima pointer na null terminated niz(char*) a ne char.
Probaj ovo:

Code:
char key[2];
  key[0] = (char) nCode;
  key[1] = 0;

   SetDlgItemText(hwnd,1000,key);

Potpis

Razlika izmedju softvera i hardvera je:
Softver je nesto sto mozes psovati, a hardver je... pa hardver je nesto sto mozes sutati

Re: Keyboard hooking ??? 19.10.2004. u 00:23 · pre 268 meseci #5

Uh ok taj kod radi ali ... ! Probao sam i sa SetDlgItemInt i video da je taj kod uvek 0 ( nula ) ... zasto ?

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