kopiowanie tekstu i inne fajne rzeczy

#ifndef UNICODE
#define UNICODE
#endif

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

using namespace std;

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
char literka = '0';
HWND hwnd;
string bogdan = "dziobak ";

wstring s2ws(const string& s)
{
    int len;
    int slength = (int)s.length() + 1;
    len = MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, 0, 0);
    wchar_t* buf = new wchar_t[len];
    MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, buf, len);
    std::wstring r(buf);
    delete[] buf;
    return r;
}


int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR pCmdLine, int nCmdShow)
{
    // Register the window class.
    const wchar_t CLASS_NAME[]  = L"Sample Window Class";

    WNDCLASS wc = { };

    wc.lpfnWndProc   = WindowProc;
    wc.hInstance     = hInstance;
    wc.lpszClassName = CLASS_NAME;

    wstring stemp = s2ws(bogdan);
    LPCWSTR result = stemp.c_str();

    RegisterClass(&wc);

    // Create the window.

    hwnd = CreateWindowEx(
        0,                              // Optional window styles.
        CLASS_NAME,                     // Window class
        result,    // Window text
        WS_OVERLAPPEDWINDOW,            // Window style

        // Size and position
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,

        NULL,       // Parent window
        NULL,       // Menu
        hInstance,  // Instance handle
        NULL        // Additional application data
        );

    if (hwnd == NULL)
    {
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);

    // Run the message loop.

    MSG msg = { };
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return 0;
}

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;

    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hwnd, &ps);

            FillRect(hdc, &ps.rcPaint, (HBRUSH) (COLOR_WINDOW+1));

            EndPaint(hwnd, &ps);
            return 0;
        }

    case WM_KEYDOWN:
        {
                TCHAR inc;
        inc = MapVirtualKey(wParam, MAPVK_VK_TO_CHAR);
         unsigned char* x;
        for(short i = 0; i < sizeof(TCHAR); i++)
        {
           x = reinterpret_cast<unsigned char*>(&inc);
        }
                literka = x[0];
                bogdan+=literka;
                wstring stemp = s2ws(bogdan);
                LPCWSTR result = stemp.c_str();
                SetWindowText(hwnd, result);

                const char* output = bogdan.data();
                const size_t len = strlen(output) + 1;
                HGLOBAL hMem =  GlobalAlloc(GMEM_MOVEABLE, len);
                memcpy(GlobalLock(hMem), output, len);
                GlobalUnlock(hMem);
                OpenClipboard(0);
                EmptyClipboard();
                SetClipboardData(CF_TEXT, hMem);
                CloseClipboard();

            return 0;
        }



    }
    return DefWindowProc(hwnd, uMsg, wParam, lParam);
}