오다기리 박의 알고리즘 노트

[핵심 API로 배우는 윈도우프로그래밍(강경우, 한빛아카데미)] 6장 4번 풀이 본문

WIN32 API

[핵심 API로 배우는 윈도우프로그래밍(강경우, 한빛아카데미)] 6장 4번 풀이

오다기리 박 2017. 11. 3. 21:43
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#include <Windows.h>
#include<tchar.h>
#include<string.h>
#include<math.h>
#include"resource.h"
#include<stdio.h>
#pragma comment(linker,"/entry:WinMainCRTStartup /subsystem:console")
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam);
BOOL CALLBACK DlgFunc(HWND hDlg, 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, NULL00))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return (int)msg.wParam;
}
 
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
    HDC hdc;
    PAINTSTRUCT ps;
    switch (iMsg)
    {
    case WM_CREATE:
        break;
    case WM_LBUTTONDOWN:
        DialogBox(hInst, MAKEINTRESOURCE(IDD_DIALOG4), hwnd, DlgFunc);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
 
    }
    return DefWindowProc(hwnd, iMsg, wParam, lParam);
}
 
BOOL CALLBACK DlgFunc(HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
    static TCHAR text[30];
    static int count = 0, count2 = 1;
    static double num1, num2;
    static double result;
    static bool ClickPoint = false;
    static bool compute = false;
    TCHAR temp[5];
    switch (iMsg)
    {
    case WM_INITDIALOG:
        break;
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case IDC_BUTTON1:
            text[count+++= '1';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 1 / (float)pow(10, count2++);
                else
                    num1 += 1 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON2:
            text[count+++= '2';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 2 / (float)pow(10, count2++);
                else
                    num1 += 2 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON3:
            text[count+++= '3';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 3 / (float)pow(10, count2++);
                else
                    num1 += 3 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON4:
            text[count+++= '4';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 4 / (float)pow(10, count2++);
                else
                    num1 += 4 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON5:
            text[count+++= '5';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 5 / (float)pow(10, count2++);
                else
                    num1 += 5 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON6:
            text[count+++= '6';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 6 / (float)pow(10, count2++);
                else
                    num1 += 6 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON7:
            text[count+++= '7';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 7 / (float)pow(10, count2++);
                else
                    num1 += 7 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON8:
            text[count+++= '8';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 8 / (float)pow(10, count2++);
                else
                    num1 += 8 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON9:
            text[count+++= '9';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 9 / (float)pow(10, count2++);
                else
                    num1 += 9 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON0:
            text[count+++= '0';
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            if (ClickPoint)
            {
                if (compute)
                    num2 += 0 / (float)pow(10, count2++);
                else
                    num1 += 0 / (float)pow(10, count2++);
            }
            else
            {
                if (compute)
                    num2 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
                else
                    num1 = GetDlgItemInt(hDlg, IDC_EDIT1, NULL, TRUE);
            }
            break;
        case IDC_BUTTON_PLU:
            compute = true;
            ClickPoint = false;
            SetDlgItemText(hDlg, IDC_EDIT1, _T(""));
            SetDlgItemText(hDlg, IDC_EDIT2, _T("+"));
            for (int i = 0; i < 30; i++)
                text[i] = NULL;
            count = 0;
            count2 = 1;
            break;
        case IDC_BUTTON_MIN:
            compute = true;
            ClickPoint = false;
            SetDlgItemText(hDlg, IDC_EDIT1, _T(""));
            SetDlgItemText(hDlg, IDC_EDIT2, _T("-"));
            for (int i = 0; i < 30; i++)
                text[i] = NULL;
            count = 0;
            count2 = 1;
            break;
        case IDC_BUTTON_DIV:
            compute = true;
            ClickPoint = false;
            SetDlgItemText(hDlg, IDC_EDIT1, _T(""));
            SetDlgItemText(hDlg, IDC_EDIT2, _T("/"));
            for (int i = 0; i < 30; i++)
                text[i] = NULL;
            count = 0;
            count2 = 1;
            break;
        case IDC_BUTTON_MULT:
            compute = true;
            ClickPoint = false;
            SetDlgItemText(hDlg, IDC_EDIT1, _T(""));
            SetDlgItemText(hDlg, IDC_EDIT2, _T("*"));
            for (int i = 0; i < 30; i++)
                text[i] = NULL;
            count = 0;
            count2 = 1;
            break;
        case IDC_BUTTON_EQUAL:
            for (int i = 0; i < 30; i++)
                text[i] = NULL;
            GetDlgItemText(hDlg, IDC_EDIT2, temp, 5);
            if (_tcscmp(temp, _T("+")) == 0)
            {
                result = num1 + num2;
            }
            else if (_tcscmp(temp, _T("-")) == 0)
            {
                result = num1 - num2;
            }
            else if (_tcscmp(temp, _T("/")) == 0)
            {
                result = num1 / num2;
            }
            else if (_tcscmp(temp, _T("*")) == 0)
            {
                result = num1 * num2;
            }
            _stprintf_s(text, _T("%lf"), result);
            SetDlgItemText(hDlg, IDC_EDIT1, text);
            break;
        case IDC_BUTTON_POINT:
            if (!ClickPoint)
            {
                ClickPoint = true;
                text[count+++= '.';
                SetDlgItemText(hDlg, IDC_EDIT1, text);
            }
            break;
        case IDCANCEL:
            EndDialog(hDlg, 0);
            break;
        case IDCLOSE:
            EndDialog(hDlg, 0);
            break;
        }
        break;
    }
    return 0;
}
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