// INCLUDES /////////////////////////////////////////////
#define WIN32_LEAN_AND_MEAN // just say no to MFC

#include <windows.h> // include all the windows headers
#include <windowsx.h> // include useful macros
#include <stdio.h>
#include <math.h>
// DEFINES //////////////////////////////////////////////

// defines for windows
#define WINDOW_CLASS_NAME "WINCLASS1"

// GLOBALS //////////////////////////////////////////////

// FUNCTIONS ////////////////////////////////////////////


LRESULT CALLBACK WindowProc(HWND hwnd,
                            UINT msg,
                            WPARAM wparam,
                            LPARAM lparam)
{
    // this is the main message handler of the system
    PAINTSTRUCT    ps;    //used in WM_Paint
    HDC                hdc;    //handle to a device context

    // what is the message
    switch(msg)
    {
    case WM_CREATE:
        {
            // do initialization stuff here

            // return success
            return (0);
        } break;

    case WM_PAINT:
        {
            // simplay validate the window
            hdc = BeginPaint(hwnd, &ps);
            
            

            EndPaint(hwnd, &ps);

            // return success
            return (0);
        } break;
    
    case WM_DESTROY:
        {
            // kill the application, this sends a WM_QUIT message
            PostQuitMessage(0);

            //return success
            return (0);
        } break;

    default: break;

    } // end switch

//process any messages that we didn't take care of
return (DefWindowProc(hwnd, msg, wparam, lparam));

} //end WinProc

// WINMAIN //////////////////////////////////////////////
int WINAPI WinMain(HINSTANCE hinstance,
                   HINSTANCE hprevinstance,
                   LPSTR lpcmdline, int ncmdshow)
{
    WNDCLASSEX winclass; // this will hold the class we create
    HWND hwnd; // generic window handle
    MSG msg; // generic message

    // first fill in the window class structure
    winclass.cbSize            = sizeof(WNDCLASSEX);
    winclass.style            = CS_DBLCLKS | CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
    winclass.lpfnWndProc    = WindowProc;
    winclass.cbClsExtra        = 0;
    winclass.cbWndExtra        = 0;
    winclass.hInstance        = hinstance;
    winclass.hIcon            = LoadIcon(NULL, IDI_APPLICATION);
    winclass.hCursor        = LoadCursor(hinstance, CROSSHAIR);
    winclass.hbrBackground    = (HBRUSH)GetStockObject(WHITE_BRUSH);
    winclass.lpszMenuName    = NULL;
    winclass.lpszClassName    = WINDOW_CLASS_NAME;
    winclass.hIconSm        = LoadIcon(NULL, IDI_APPLICATION);

    // register the window class
    if (!RegisterClassEx(&winclass))
        return (0);

    // create the window
    if (!(hwnd = CreateWindowEx(NULL,                // extended style
                    WINDOW_CLASS_NAME,                // class
                    "FACE",            // title
                    WS_OVERLAPPEDWINDOW | WS_VISIBLE,
                    0,0,                            // initial x,y
                    400,400,                        // initial width, height
                    NULL,                            // handle to parent
                    NULL,                            // handle to menu
                    hinstance,                        // instance of this application
                    NULL)))                            // extra creation parms
    return (0);

    // enter main event loop
    while(GetMessage(&msg,NULL,0,0))
    {
        // translate any accelerator keys
        TranslateMessage(&msg);

        // send the message to the window proc
        DispatchMessage(&msg);
    } // end while

    //return to Windows like this
    return(msg.wParam);

} // end WinMain

/////////////////////////////////////////////////////////