// 윈도우즈 API
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
// 실행윈도우 설정 및 실행
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
           PSTR szCmdLine, int iCmdShow)
{
    static char szAppName[] = "SvmToy";    // 실행파일명
    MSG msg;
    WNDCLASSEX wndclass;

    wndclass.cbSize = sizeof(wndclass);
    wndclass.style = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc = WndProc;
    wndclass.cbClsExtra = 0;
    wndclass.cbWndExtra = 0;
    wndclass.hInstance = hInstance;
    wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
    wndclass.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = szAppName;
    wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

    RegisterClassEx(&wndclass);

    main_window = CreateWindow(szAppName,    // window class name
                    "SVM Toy",    // 윈도우 캡션
                    WS_OVERLAPPEDWINDOW,// window style
                    CW_USEDEFAULT,    // initial x position
                    CW_USEDEFAULT,    // initial y position
                    XLEN,    // initial x size
                    YLEN+52,    // initial y size
                    NULL,    // parent window handle
                    NULL,    // window menu handle
                    hInstance,    // program instance handle
                    NULL);    // creation parameters

    ShowWindow(main_window, iCmdShow);
    UpdateWindow(main_window);
   // 포인트색 변경버튼
    CreateWindow("button", "Change", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
             0, YLEN, 50, 25, main_window, (HMENU) ID_BUTTON_CHANGE, hInstance, NULL);
   // 분류시작 버튼
    CreateWindow("button", "Run", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
             50, YLEN, 50, 25, main_window, (HMENU) ID_BUTTON_RUN, hInstance, NULL);
   // 화면삭제 버튼
    CreateWindow("button", "Clear", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
             100, YLEN, 50, 25, main_window, (HMENU) ID_BUTTON_CLEAR, hInstance, NULL);
   // 화면저장 버튼
    CreateWindow("button", "Save", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
             150, YLEN, 50, 25, main_window, (HMENU) ID_BUTTON_SAVE, hInstance, NULL);
   // 불러오기 버튼
    CreateWindow("button", "Load", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
             200, YLEN, 50, 25, main_window, (HMENU) ID_BUTTON_LOAD, hInstance, NULL);
   // 파라미터 수정창
    edit = CreateWindow("edit", NULL, WS_CHILD | WS_VISIBLE,
                    250, YLEN, 250, 25, main_window, (HMENU) ID_EDIT, hInstance, NULL);
   // 처음부터 수정시작
    Edit_SetText(edit,DEFAULT_PARAM);
   // 포인트 색상
    brush1 = CreateSolidBrush(colors[4]);
    brush2 = CreateSolidBrush(colors[5]);
    brush3 = CreateSolidBrush(colors[6]);

    window_dc = GetDC(main_window);
    buffer = CreateCompatibleBitmap(window_dc, XLEN, YLEN);
    buffer_dc = CreateCompatibleDC(window_dc);
    SelectObject(buffer_dc, buffer);
    PatBlt(buffer_dc, 0, 0, XLEN, YLEN, BLACKNESS);

    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}  // 실행 윈도우 설정

//---------------------------------------------------------------------------
// 파일명 얻기
int getfilename( HWND hWnd , char *filename, int len, int save)
{
    OPENFILENAME OpenFileName; // OpenDialog
    memset(&OpenFileName,0,sizeof(OpenFileName));
    filename[0]='\0';

    OpenFileName.lStructSize       = sizeof(OPENFILENAME);
    OpenFileName.hwndOwner         = hWnd;
    OpenFileName.lpstrFile         = filename;
    OpenFileName.nMaxFile          = len;
    OpenFileName.Flags             = 0;

    return save?GetSaveFileName(&OpenFileName):GetOpenFileName(&OpenFileName);
}