#include "stdafx.h"
#include <windows.h>
#include <CommCtrl.h>

static const long ID_CHILD_PANEL = 1;
static const long ID_BUTTON_PRESS_ME = 2;

LRESULT CALLBACK MyBeautifullWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
{
    switch (msg)
    {
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case ID_BUTTON_PRESS_ME:
            MessageBox(NULL, L"You've pressed the \"Press me\" button??!", L"Wtf...?!", MB_ICONINFORMATION | MB_OK);
            break;
        }
        break;

    case WM_CLOSE:
        DestroyWindow(hwnd);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        break;
    }
    return DefSubclassProc(hwnd, msg, wParam, lParam);
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch (msg)
    {
    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)
{
    // Register wsndow class
    WNDCLASSEX wc;
    wc.cbSize = sizeof(WNDCLASSEX);
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = L"SOME_CLASS_NAME";
    wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

    RegisterClassEx(&wc);

    
    // Create the main windows
    HWND vMainWindow = CreateWindowEx(
        WS_EX_CLIENTEDGE | WS_EX_CONTROLPARENT,
        L"SOME_CLASS_NAME",
        L"Test app",
        WS_OVERLAPPED | WS_SYSMENU,
        700, 500,
        840, 360,
        NULL,
        NULL,
        hInstance,
        (PVOID)NULL);


    // Create the control panel
    HWND vChildControl = CreateWindowEx(
        WS_EX_WINDOWEDGE | WS_EX_DLGMODALFRAME,
        L"STATIC",
        (PCTSTR)NULL,
        WS_CHILD | WS_VISIBLE,
        0,
        260,
        840,
        50,
        vMainWindow,
        (HMENU)ID_CHILD_PANEL,
        hInstance,
        (LPVOID)NULL);

    SetWindowSubclass(vChildControl, MyBeautifullWndProc, 0, 0);

    // Create the button "Press me!"
    HWND vButtomAtChildWindow = CreateWindowEx(
        0,
        L"BUTTON",
        L"Press me!",
        WS_VISIBLE | WS_CHILD | BS_FLAT,
        705,
        5,
        100,
        30,
        vChildControl,
        (HMENU)ID_BUTTON_PRESS_ME,
        hInstance,
        NULL);

    ShowWindow(vMainWindow, SW_SHOW);


    MSG Msg;
    BOOL ret;
    while ((ret = GetMessage(&Msg, NULL, 0, 0)) != 0)
    {
        if (ret == -1)
        {
            // handle the error and possibly exit
        }
        else
        {
            TranslateMessage(&Msg);
            DispatchMessage(&Msg);
        }
    }
    return (int)Msg.wParam;

}