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#include "stdafx.h"
#include "zzz.h"
#include <windows.h>
#include <stdlib.h>
#include <string.h>
#include <tchar.h>
#define ID_EDIT 2999
#define ID_BUTTON 3000
static TCHAR szWindowClass[] = _T("win32app");
static TCHAR szChildClass[] = _T("child");
static TCHAR szTitle[] = _T("Win32 Guided Tour Application");
HINSTANCE hInst;
int Cmd;
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);


int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPSTR lpCmdLine,
                   int nCmdShow)
{
    WNDCLASSEX wcex;
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
    wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = NULL;
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
    if (!RegisterClassEx(&wcex))
    {
        MessageBox(NULL,
            _T("Call to RegisterClassEx1 failed!"),
            _T("Win32 Guided Tour"),
            NULL);
        return 1;
    }
    hInst = hInstance;
    HWND hWnd = CreateWindow(
        szWindowClass,
        szTitle,
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT,
        800,800,
        NULL,
        NULL,
        hInstance,
        NULL
    );
    if (!hWnd)
    {
        MessageBox(NULL,
            _T("Call to CreateWindow failed!"),
            _T("Win32 Guided Tour"),
            NULL);

        return 1;
    }
    ShowWindow(hWnd,
        nCmdShow);
    UpdateWindow(hWnd);

    
    Cmd = nCmdShow;
    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int) msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    static HWND hEdit, hButton,hStatic,hBut;
    static HWND Scroll;
    char chBuff[80];
    int x; 
    switch (message)
    {
    case WM_CREATE:
        {
            hStatic=CreateWindow(L"static",L"Введите число и нажмите 'OK'",WS_CHILD|WS_VISIBLE|SS_CENTER,250,250,300,20,hWnd,(HMENU)0,hInst,NULL);
            hEdit=CreateWindow(L"edit",NULL,WS_CHILD|WS_VISIBLE|WS_BORDER|ES_LEFT,200,400,400,30,hWnd,(HMENU)ID_EDIT,hInst,NULL);

            Scroll=CreateWindow(L"scrollbar",NULL, WS_CHILD|WS_VISIBLE|SBS_VERT,620,350,30,150,hWnd,(HMENU)-1,hInst,NULL);
            
            hButton=CreateWindow(L"button",L"Выход",WS_CHILD | WS_VISIBLE |BS_DEFPUSHBUTTON, 250, 450, 100, 50, hWnd,(HMENU)ID_BUTTON, hInst, NULL);
            hBut=CreateWindow(L"button",L"Да",WS_CHILD | WS_VISIBLE |BS_DEFPUSHBUTTON, 450, 450, 100, 50, hWnd,(HMENU)ID_BUTTON, hInst, NULL);
            SetFocus(hEdit);
            return 0;

        }
    case WM_COMMAND:
        { switch (LOWORD(wParam))
            { case ID_EDIT:
                {  if ((HIWORD(wParam))==EN_ERRSPACE)
                    MessageBox(hWnd,L"Мало памяти",szTitle,MB_OK);
                return 0;
                }
                case ID_BUTTON:
                    {
                    SendMessage(hEdit,EM_GETLINE,0,(LPARAM)chBuff);
                    MessageBox(hWnd, (LPCWSTR)chBuff,szTitle,MB_OK);
                    SetWindowText(hEdit,(LPCWSTR)"\0");
                    SetFocus(hEdit);
                    return 0;
                    }
                case SB_LINEDOWN:
                    { 
                        // при нажатии кнопки скролла записываем значение из строки в буфер
                        // преобразовываем буфер в int
                        // увеличиваем на единицу
                        //  преобразовываем в char
                        // передаем результат строке ?????????
                        SendMessage(hEdit,EM_GETLINE,0,(LPARAM)chBuff); // записали в буффер
                        x=int(chBuff);  // преобразовали в int
                        while (x<10)    // уыеличиваем число пока оно меньше 10
                        { 
                        x++;// увеличили на 1 
                        }
                        chBuff[80]=char (x); // перобразовали обратно в char
                        
                        }    
        }
        return 0;        
        }
     case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
        break;
    }

    return 0;
}