Crackme01

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

const char g_szClassName[] = "myWindowClass";

#define IDC_MAIN_EDIT   101
#define IDC_BUTTON  1000
#define IDC_STATUSBAR 1001

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    const char* password = "Djoby";
    LPTSTR editText;
    HWND hEdit;
    HWND hText;
    HWND hButton;
    HWND hStatus;
    HBRUSH g_hbrBackground = CreateSolidBrush(RGB(0xFF, 0xFF, 0xFF));
    switch(msg)
    {
        case WM_CREATE:
        {
            hText = CreateWindowEx(0, "STATIC", "Entrez le mot de passe :",
                WS_CHILD | WS_VISIBLE,
                20, 0, 170, 20, hwnd, 0, GetModuleHandle(NULL) ,0);

            hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "",
                WS_CHILD | WS_VISIBLE | ES_MULTILINE,
                20, 25, 200, 20, hwnd, (HMENU)IDC_MAIN_EDIT, GetModuleHandle(NULL), NULL);

            hButton = CreateWindowEx(0, "BUTTON", "OK",
                WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON,
                90, 50, 50, 20, hwnd, (HMENU)IDC_BUTTON, GetModuleHandle(NULL) ,0);

            hStatus = CreateWindowEx(0, STATUSCLASSNAME, NULL,
                WS_CHILD | WS_VISIBLE | WS_BORDER,
                0, 75, 260, 20,
                hwnd, (HMENU)IDC_STATUSBAR, GetModuleHandle(NULL), NULL);
            if(hText == NULL)
                MessageBox(hwnd, "Could not create textControl.", "Error", MB_OK | MB_ICONERROR);
            if(hEdit == NULL)
                MessageBox(hwnd, "Could not create edit box.", "Error", MB_OK | MB_ICONERROR);
            if(hButton == NULL)
                MessageBox(hwnd, "Could not create button.", "Error", MB_OK | MB_ICONERROR);
            if(hStatus == NULL)
                MessageBox(hwnd, "Could not create statusBar.", "Error", MB_OK | MB_ICONERROR);
        }
        break;
        case WM_COMMAND:
            if(wParam == IDC_BUTTON)
            {
                int len = GetWindowTextLength(GetDlgItem(hwnd, IDC_MAIN_EDIT));
                if(len > 0)
                {
                    char* buf;
                    buf = (char*)GlobalAlloc(GPTR, len + 1);
                    GetDlgItemText(hwnd, IDC_MAIN_EDIT, buf, len + 1);
                    editText=buf;
                    if(strcmp(buf, password) == 0)
                    {
                        SetWindowText(GetDlgItem( hwnd, IDC_STATUSBAR ), "Mot de passe correct.");
                    }
                    else
                    {
                        SetWindowText(GetDlgItem( hwnd, IDC_STATUSBAR ), "Mot de passe incorrect.");
                    }
                    GlobalFree((HANDLE)buf);
                }
            }
        break;
        case WM_CTLCOLORDLG:
            return (LONG)g_hbrBackground;
        case WM_CTLCOLORSTATIC:
        {
            HDC hdcStatic = (HDC)wParam;
            SetTextColor(hdcStatic, RGB(0, 0, 0));
            SetBkMode(hdcStatic, TRANSPARENT);
            return (LONG)g_hbrBackground;
        }
        break;
        case WM_CLOSE:
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
            PostQuitMessage(0);
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc;
    HWND hwnd;
    MSG Msg;


    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style         = 0;
    wc.lpfnWndProc   = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance     = hInstance;
    wc.hIcon         = LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_MYICON));
    wc.hCursor       = NULL;
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = g_szClassName;
    wc.hIconSm       = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_MYICON), IMAGE_ICON, 16, 16, 0);

    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        g_szClassName,
        "Crackme 01",
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, 260, 150,
        NULL, NULL, hInstance, NULL);

    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}