[핵심 API로 배우는 윈도우프로그래밍(강경우, 한빛아카데미)] 7장 7번 풀이

#include <Windows.h>
#include<tchar.h>
#include<string.h>
#include<math.h>
//#include"resource.h"
//#pragma comment(linker,"/entry:WinMainCRTStartup /subsystem:console")
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
HINSTANCE hInst;
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)
{
    HWND hwnd;
    MSG msg;
    WNDCLASS WndClass;
 
    hInst = hInstance;
    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(WHITE_BRUSH);
    WndClass.lpszMenuName = NULL;
    WndClass.lpszClassName = _T("Window Class Name");
 
    RegisterClass(&WndClass);
 
    hwnd = CreateWindow(
        _T("Window Class Name"),
        _T("박정호"),
        WS_OVERLAPPEDWINDOW,
        50,
        50,
        1000,
        700,
        NULL,
        NULL,
        hInstance,
        NULL);
 
    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);
 
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int)msg.wParam;
}
#define IDC_COMBO1 100
#define IDC_COMBO2 101
#define IDC_COMBO3 102
#define IDC_EDIT1 103
#define IDC_EDIT2 104
#define IDC_BUTTON 105
 
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
    HDC hdc;
    PAINTSTRUCT ps;
    TCHAR str[20], editstr[20], tmp1[20], tmp2[20], tmp3[20];
 
    static HWND hCombo1, hCombo2, hCombo3, hEdit1, hEdit2,hEnrollButton;
 
    switch (iMsg)
    {
    case WM_CREATE:
        hCombo1 = (HWND)CreateWindow(_T("combobox"), NULL, WS_CHILD | WS_VISIBLE | CBS_DROPDOWN | CBS_NOINTEGRALHEIGHT, 100, 100, 100, 400, hwnd, (HMENU)IDC_COMBO1, hInst, NULL);
        hCombo2 = (HWND)CreateWindow(_T("combobox"), NULL, WS_CHILD | WS_VISIBLE | CBS_DROPDOWN | CBS_NOINTEGRALHEIGHT, 200, 100, 100, 300, hwnd, (HMENU)IDC_COMBO2, hInst, NULL);
        hCombo3 = (HWND)CreateWindow(_T("combobox"), NULL, WS_CHILD | WS_VISIBLE | CBS_DROPDOWN | CBS_NOINTEGRALHEIGHT, 300, 100, 100, 600, hwnd, (HMENU)IDC_COMBO3, hInst, NULL);
        hEdit1 = (HWND)CreateWindow(_T("edit"), NULL, WS_CHILD | WS_VISIBLE | ES_READONLY | WS_BORDER, 130, 200, 100, 20, hwnd, (HMENU)IDC_EDIT1, hInst, NULL);
        hEdit2 = (HWND)CreateWindow(_T("edit"), NULL, WS_CHILD | WS_VISIBLE | WS_BORDER, 270, 200, 100, 20, hwnd, (HMENU)IDC_EDIT2, hInst, NULL);
        hEnrollButton = (HWND)CreateWindow(_T("button"), _T("주민번호입력"), WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 400, 100, 120, 20, hwnd, (HMENU)IDC_BUTTON, hInst, NULL);
 
        for (int i = 0; i < 20; i++)
        {
            _stprintf_s(str, 20, _T("%d"), 1980 + i);
            SendMessage(hCombo1, CB_ADDSTRING, 0, (LPARAM)str);
        }
        for (int i = 1; i <= 12; i++)
        {
            _stprintf_s(str, 20, _T("%d월"), i);
            SendMessage(hCombo2, CB_ADDSTRING, 0, (LPARAM)str);
        }
        break;
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case IDC_COMBO2:
            switch (1 + SendMessage(hCombo2, CB_GETCURSEL, 0, 0))
            {
            case 1:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 2:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 28; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 3:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 4:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 30; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 5:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 6:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 30; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 7:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 8:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 9:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 30; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 10:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 11:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 30; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            case 12:
                SendMessage(hCombo3, CB_RESETCONTENT, 0, 0);
                for (int i = 1; i <= 31; i++)
                {
                    _stprintf_s(str, 20, _T("%d"), i);
                    SendMessage(hCombo3, CB_ADDSTRING, 0, (LPARAM)str);
                }
                break;
            }
            break;
        case IDC_BUTTON:
                SetDlgItemText(hwnd, IDC_EDIT1, _T(""));
                editstr[0] = '\0';
                GetDlgItemText(hwnd, IDC_COMBO1, tmp1, 20);
                GetDlgItemText(hwnd, IDC_COMBO2, tmp2, 20);
                GetDlgItemText(hwnd, IDC_COMBO3, tmp3, 20);
                editstr[0] = tmp1[2];
                editstr[1] = tmp1[3];
                if (_tcslen(tmp2) == 2)
                {
                    editstr[2] = '0';
                    editstr[3] = tmp2[0];
                }
                else
                {
                    editstr[2] = tmp2[0];
                    editstr[3] = tmp2[1];
                }
                if (_tcslen(tmp3) == 1)
                {
                    editstr[4] = '0';
                    editstr[5] = tmp3[0];
                }
                else
                {
                    editstr[4] = tmp3[0];
                    editstr[5] = tmp3[1];
                }
                editstr[6] = '\0';
                SetDlgItemText(hwnd, IDC_EDIT1, editstr);
            break;
        }
        break;
    case WM_PAINT:
        hdc = BeginPaint(hwnd, &ps);
        TextOut(hdc, 120, 70, _T("연도선택"), _tcsclen(_T("연도선택")));
        TextOut(hdc, 220, 70, _T("월 선택"), _tcsclen(_T("월 선택")));
        TextOut(hdc, 320, 70, _T("일 선택"), _tcsclen(_T("일 선택")));
        TextOut(hdc, 130, 170, _T("주민번호 앞자리 - 주민번호 뒷자리"), _tcsclen(_T("주민번호 앞자리 - 주민번호 뒷자리")));
        EndPaint(hwnd, &ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
 
    }
    return DefWindowProc(hwnd, iMsg, wParam, lParam);
}