#if 1
#define NOMINMAX
#define _CRT_SECURE_NO_WARNINGS
#define _CRTDBG_MAP_ALLOC
#include <Windows.h>
#include <stdio.h>
#include <CommCtrl.h>
#include <WindowsX.h>
#include <strsafe.h>

#pragma comment(lib, "comctl32")

HWND g_Scroll;


void
PaintContent(HWND hwnd, PAINTSTRUCT* pps)
{
    HDC hdc = CreateCompatibleDC(pps->hdc);

    DeleteDC(hdc);
}


BOOL
OnCreate(HWND hwnd, LPCREATESTRUCT lpcs)
{
    g_Scroll = CreateWindowExW(0, WC_SCROLLBAR, NULL, WS_CHILD | WS_VISIBLE | SBS_HORZ, 10, 10, 500, 30, hwnd, (HMENU)NULL, GetModuleHandle(NULL), (PVOID)NULL);


    return TRUE;
}

void
OnDestroy(HWND hwnd)
{
    PostQuitMessage(0);
}

void
OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
{
    OutputDebugStringA("OnCommand\n");
}

static int nProp = 1;
BOOL CALLBACK WinPropProc(HWND hwndSubclass, LPWSTR lpszString, HANDLE hData, ULONG_PTR lpwApplicationData)
{
    if (HIWORD(lpszString))
    {
        wprintf(L"WinProp %d: %s", nProp++, lpszString);
    }
    else
    {
        wprintf(L"WinProp %d: #%X", nProp++, lpszString);
    }

    return TRUE;
}

void
OnKeyUp(HWND hwnd, UINT vk, BOOL fDown, int cRepeat, UINT flags)
{
    if (vk == VK_F1)
    {
        nProp = 1;
        wprintf(L"%s\n", L"Beginning enum");
        EnumPropsExW(g_Scroll, WinPropProc, NULL);
        wprintf(L"%s\n", L"End enum");
    }
}

LRESULT
OnNotify(HWND hwnd, int idFrom, NMHDR* notify)
{
    OutputDebugStringA("OnNotify\n");
    return 0;
}

void
OnSize(HWND hwnd, UINT state, int cx, int cy)
{
}

void
OnPaint(HWND hwnd)
{
    PAINTSTRUCT ps;
    BeginPaint(hwnd, &ps);
    PaintContent(hwnd, &ps);
    EndPaint(hwnd, &ps);
}


void
OnPrintClient(HWND hwnd, HDC hdc)
{
    PAINTSTRUCT ps;
    ps.hdc = hdc;
    GetClientRect(hwnd, &ps.rcPaint);
    PaintContent(hwnd, &ps);
}

LRESULT CALLBACK
WndProc(HWND hwnd, UINT uiMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uiMsg)
    {
        HANDLE_MSG(hwnd, WM_CREATE, OnCreate);
        HANDLE_MSG(hwnd, WM_DESTROY, OnDestroy);

        HANDLE_MSG(hwnd, WM_KEYUP, OnKeyUp);
        HANDLE_MSG(hwnd, WM_COMMAND, OnCommand);
        HANDLE_MSG(hwnd, WM_NOTIFY, OnNotify);
        HANDLE_MSG(hwnd, WM_SIZE, OnSize);

        HANDLE_MSG(hwnd, WM_PAINT, OnPaint);
    case WM_PRINTCLIENT: OnPrintClient(hwnd, (HDC)wParam); return 0;
    }

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


BOOL
InitApp(void)
{
    WNDCLASS wc;

    wc.style = 0;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = GetModuleHandle(NULL);
    wc.hIcon = NULL;
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = TEXT("Scratch");

    if (!RegisterClass(&wc)) return FALSE;

    INITCOMMONCONTROLSEX ex = { sizeof(ex), ICC_STANDARD_CLASSES };
    InitCommonControlsEx(&ex);

    return TRUE;
}

#endif



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

int do_gui(int argc, char** argv)
{
    MSG msg;
    HWND hwnd;


    InitApp();

    hwnd = CreateWindow(TEXT("Scratch"), TEXT("Scratch"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
        CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, GetModuleHandle(NULL), 0);

    ShowWindow(hwnd, SW_SHOW);

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