Создание контролов (кнопки, textBox, и другие)

#include <Windows.h>
#include <gdiplus.h>
#pragma comment(lib, "gdiplus.lib")
 
using namespace Gdiplus;
#define width 640
#define height 480
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
 
VOID OnPaint(HDC hdc)
{
    Graphics    graphics(hdc);
    SolidBrush  brush(Color(255, 0, 0, 255));
    FontFamily  fontFamily(L"Times New Roman");
    Font        font(&fontFamily, 24, FontStyleRegular, UnitPixel);
    PointF      pointF(10.0f, 20.0f);
 
    graphics.DrawString(L"Hello World!", -1, &font, pointF, &brush);
}
 
int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX windowClass;
    HWND hwnd;
    MSG uMSG;
    GdiplusStartupInput gdiplusStartupInput;
    ULONG_PTR gdiplusToken;
    memset(&windowClass, 0, sizeof(WNDCLASSEXW));
    windowClass.cbSize = sizeof(WNDCLASSEX);
    windowClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_PEN);
    windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
    windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    windowClass.hInstance = hInstance;
    windowClass.lpfnWndProc = WindowProc;
    windowClass.lpszClassName = "Simple Window";
    RegisterClassEx(&windowClass);
    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
    hwnd = CreateWindow(windowClass.lpszClassName, "VK-TOOLS", WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX, (GetSystemMetrics(SM_CXSCREEN) - width) / 2, (GetSystemMetrics(SM_CYSCREEN) - height) / 2, width, height, NULL, NULL, NULL,NULL);
    ShowWindow(hwnd, nCmdShow);
    while (GetMessage(&uMSG,hwnd,NULL,NULL))
    {
        TranslateMessage(&uMSG);
        DispatchMessage(&uMSG);
    }
    GdiplusShutdown(gdiplusToken);
    return uMSG.wParam;
}
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
    case WM_CREATE:
        CreateWindow("BUTTON", "Привет", WS_CHILD | WS_VISIBLE, 40, 100, 150, 70, hwnd, (HMENU)1, NULL, NULL);
        break;
    case WM_COMMAND:
        switch (wParam)
        {
        case 1:
            MessageBox(hwnd, "Привет", "Сообщение", MB_YESNO|MB_ICONQUESTION);
            break;
        }
        break;
    case WM_CLOSE:
        ExitProcess(0);
        break;
    case WM_PAINT:
        HDC hDC;
        PAINTSTRUCT pt;
        hDC = BeginPaint(hwnd, &pt);
        OnPaint(hDC);
        EndPaint(hwnd, &pt);
        break;
    default:
        return DefWindowProc(hwnd, uMsg, wParam, lParam);
        break;
    }
}

CreateWindow("BUTTON", "Привет", WS_CHILD | WS_VISIBLE, 40, 100, 150, 70, hwnd, (HMENU)1, NULL, NULL);

#pragma comment(linker,"/manifestdependency:\"type='win32' \
                        name='Microsoft.Windows.Common-Controls' \
                        version='6.0.0.0' processorArchitecture='*'\
 publicKeyToken='6595b64144ccf1df' language='*'\"")