简单控件的应用（一）—prj计算器

 

 

 

_{源程序下载地址：http://down.qiannao.com/space/file/luowei505050/prj-8ba1-7b97-5668.rar/.page}

_{新建一个对话框程序，插入编辑框，下拉框，按钮，对输入数据进行响应，对数据进行增删除查改，对数据作加减乘除运算，截图：}

_{主程序如下：}

_{#include "stdafx.h"}

_{#include <windows.h>}

_{#include <stdio.h>}

_{#include <stdlib.h>}

_{//#include <math.h>}

_{#include <windowsx.h>}

_{#include "resource.h"}

_{#include "MainDlg.h"}

_{#define PI 3.1415926}

 

_{BOOL WINAPI Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)}

_{

_switch(uMsg)

_{

_{HANDLE_MSG(hWnd, WM_INITDIALOG, Main_OnInitDialog);}

_{HANDLE_MSG(hWnd, WM_COMMAND, Main_OnCommand);}

        _{HANDLE_MSG(hWnd,WM_CLOSE, Main_OnClose);}

_}

 

_{return FALSE;}

_}

 

_{BOOL Main_OnInitDialog(HWND hwnd, HWND hwndFocus, LPARAM lParam)}

_{

    _{//HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

    _{//ComboBox_AddString(hwndcombo1,TEXT("学校"));}

    _{//ComboBox_AddString(hwndcombo1,TEXT("商店"));}

    _{//ComboBox_AddString(hwndcombo1,TEXT("家里"));}

    _{//ComboBox_AddString(hwndcombo1,TEXT("路上"));}

    _{HWND hwndcomboop=(GetDlgItem(hwnd,IDC_COMBOOP));}

    _{ComboBox_InsertString(hwndcomboop,-1,TEXT("+"));}

    _{ComboBox_InsertString(hwndcomboop,-1,TEXT("-"));}

    _{ComboBox_InsertString(hwndcomboop,-1,TEXT("*"));}

    _{ComboBox_InsertString(hwndcomboop,-1,TEXT("/"));}

_{return TRUE;}

_}

_{//--------------------------------------------------------------------------}

_{BOOL IsInt(char *str)}

_{

    _{TCHAR strtemp[32];}

    _{int i1=atoi(str);}

    _{itoa(i1,strtemp,10);}

    _{if(strcmp(strtemp,str)==0)}

    _{

        _{return TRUE;}

    _}

    _else

        _{return FALSE;}

_}

 

_{TCHAR *GetText(HWND hwnd,int id,TCHAR* str)}

_{

    _{//TCHAR str[256];}

    _{GetDlgItemText(hwnd,id,str,sizeof(str)+29);}

    _{return str;}

_}

_{//==========================================================================}

_{void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)}

_{

_switch(id)

_{

_{case IDC_OK:}

        _{

            _{//char name[256];}

            _{TCHAR name[256];}

            _{GetDlgItemText(hwnd,IDC_EDITNAME,name,sizeof(name));}

            _{MessageBox(hwnd,name,name,MB_OK);}

        _}

_break;

 

        _{case IDC_OK2:}

        _{

            _{char name[256];}

            _{TCHAR msg[256];}

            _{GetDlgItemText(hwnd,IDC_EDITNAME,name,sizeof(name));}

            _{//sprintf(msg,"%s你好！",name);}

            _{wsprintf(msg,"%s你好！",name);}

            _{MessageBox(hwnd,msg,msg,MB_OK);}

        _}

        _break;

_{case IDC_SET:}

            _{

                _{SetDlgItemText(hwnd,IDC_EDITNAME2,"新年好！！");}

            _}

_break;

_{//=============================================================================}

_{case IDC_ADD:}

        _{

            _{TCHAR str1[32];}

            _{TCHAR str2[32];}

            _{TCHAR str11[32];}

            _{TCHAR str22[32];}

            _{TCHAR str3[32];}

            _{GetDlgItemText(hwnd,IDC_EDIT1,str1,sizeof(str1));}

            _{GetDlgItemText(hwnd,IDC_EDIT2,str2,sizeof(str2));}

            _{int i1=atoi(str1);}

            _{int i2=atoi(str2);}

            _{itoa(i1,str11,10);}

            _{itoa(i2,str22,10);}

            _{if(strcmp(str1,str11)!=0||strcmp(str2,str22)!=0)}

            _{

                _{MessageBox(hwnd,TEXT("请输入整数！"),TEXT("提示"),MB_OK|MB_ICONHAND);}

                _break;

            _}

            _{int i3=i1+i2;}

            _{itoa(i3,str3,10);}

            _{//wsprintf(str3,"%i",i3);}

            _{SetDlgItemText(hwnd,IDC_EDIT3,str3);}

        _}

        _break;

_{case IDC_SUB:}

        _{

            _{TCHAR str1[32];}

            _{TCHAR str2[32];}

            _{TCHAR str3[32];}

            _{GetDlgItemText(hwnd,IDC_EDIT4,str1,sizeof(str1));}

            _{GetDlgItemText(hwnd,IDC_EDIT5,str2,sizeof(str2));}

            _{int i1=atoi(str1);}

            _{int i2=atoi(str2);}

            _{if(!IsInt(str1))}

            _{

                _{MessageBox(hwnd,TEXT("第一个输入框中的数不是整数！"),TEXT("提示"),MB_OK|MB_ICONHAND);}

                _break;

            _}

            _{if(!IsInt(str2))}

            _{

                _{MessageBox(hwnd,TEXT("第二个输入框中的数不是整数！"),TEXT("提示"),MB_OK|MB_ICONHAND);}

                _break;

            _}

            _{int i3=i1-i2;}

            _{itoa(i3,str3,10);}

            _{//wsprintf(str3,"%i",i3);}

            _{SetDlgItemText(hwnd,IDC_EDIT6,str3);}

        _}

        _break;

 

        _{case IDC_NEW:}

        _{

            _{//if() //有重复的}

 

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{ComboBox_AddString(hwndcombo1,TEXT("学校"));}

            _{ComboBox_AddString(hwndcombo1,TEXT("商店"));}

            _{ComboBox_AddString(hwndcombo1,TEXT("家里"));}

            _{ComboBox_AddString(hwndcombo1,TEXT("路上"));}

        _}

        _break;

 

        _{//void Main_OnCommand2(HWND hwndcombo1, int id, HWND hwndCtl, UINT codeNotify)}

        _//{

        _{case IDC_COMBOBACK:}

        _{

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{int cursel=ComboBox_GetCurSel(hwndcombo1);}

            _{switch(cursel)}

            _{

                _{case 3:}

                _{

                    _{MessageBox(hwnd,TEXT("你选择的是 学校"),TEXT("回复"),MB_OK);}

                _}break;

                _{case 2:}

                _{

                    _{MessageBox(hwnd,TEXT("你选择的是 商店"),TEXT("回复"),MB_OK);}

                _}break;

                _{case 0:}

                _{

                    _{MessageBox(hwnd,TEXT("你选择的是 家里"),TEXT("回复"),MB_OK);}

                _}break;

                _{case 1:}

                _{

                    _{MessageBox(hwnd,TEXT("你选择的是 路上"),TEXT("回复"),MB_OK);}

                _}break;

 

            _}

        _}

        _//}

        _break;

 

        _{case IDC_COMBODELETE:}

        _{

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{ComboBox_DeleteString(hwndcombo1,3);}

            _{ComboBox_DeleteString(hwndcombo1,2);}

            _{ComboBox_DeleteString(hwndcombo1,1);}

            _{ComboBox_DeleteString(hwndcombo1,0);}

        _}

        _break;

 

        _{case IDC_COMBOCOUNT:}

        _{

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{int count=ComboBox_GetCount(hwndcombo1);}

            _{TCHAR msg[256];}

            _{wsprintf(msg,"这个下拉列表中一共有 %d 个下拉选项",count);}

            _{MessageBox(hwnd,msg,TEXT("统计下拉项数"),MB_OK);}

        _}break;

 

        _{case IDC_COMBOSETCURSEL:}

        _{

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{ComboBox_SetCurSel(hwndcombo1,2);}

            _{int se=ComboBox_GetCount(hwndcombo1);}

            _if(!se)

            _{

                _{MessageBox(hwnd,TEXT("列表中没有选项，无法进行选择！"),TEXT("提示"),MB_OK);}

            _}

            _else

            _{MessageBox(hwnd,TEXT("你选择了商店"),TEXT("选择"),MB_OK);}

        _}break;

 

        _{case IDC_GETLBTEXT:}

        _{

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{TCHAR str[32];}

            _{ComboBox_GetLBText(hwndcombo1,1,str);}

            _{int se=ComboBox_GetCount(hwndcombo1);}

            _if(!se)

            _{

                _{MessageBox(hwnd,TEXT("列表中没有选项，无法进行选择！"),TEXT("提示"),MB_OK);}

            _}

            _else

                _{MessageBox(hwnd,TEXT(str),TEXT("操作结果"),MB_OK);}

        _}break;

        _{case IDC_COMBOADDITEM:}

        _{

            _{HWND hwndcombo1=GetDlgItem(hwnd,IDC_COMBO1);}

            _{TCHAR str1[32];}

            _{TCHAR *str2;}

            _{str2=GetText(hwnd,IDC_COMBOTEXT,str1);}

            _{ComboBox_AddString(hwndcombo1,str2);}

        _}break;

_{//=========================================================}

        _{case IDC_OP:}

        _{

            _{TCHAR str1[32];}

            _{TCHAR str2[32];}

            _{TCHAR str3[32];}

            _{GetDlgItemText(hwnd,IDC_INPUT1,str1,sizeof(str1));}

            _{GetDlgItemText(hwnd,IDC_INPUT2,str2,sizeof(str2));}

            _{if(!IsInt(str1))}

            _{{MessageBox(hwnd,TEXT("第一个输入框中输入的不是整数，不符合要求"),TEXT("提示"),MB_OK);break;}}

            _{if(!IsInt(str2))}

            _{{MessageBox(hwnd,TEXT("第二个输入框中输入的不是整数，不符合要求"),TEXT("提示"),MB_OK);break;}}

            

            _{int i1=atoi(str1);}

            _{int i2=atoi(str2);}

            _{int i3=0;}

            _{HWND hwndcomboop=GetDlgItem(hwnd,IDC_COMBOOP);}

            _{int curselIndex=ComboBox_GetCurSel(hwndcomboop);}

            _{switch(curselIndex)}

            _{

            _{case 0:}

                _{

                    _i3=i1+i2;

                _}break;

            _{case 1:}

                _{

                    _i3=i1-i2;

                _}break;

            _{case 2:}

                _{

                    _i3=i1*i2;

                _}break;

            _{case 3:}

                _{

                    _i3=i1/i2;

                _}break;

            _default:

                _{

                    _{MessageBox(hwnd,TEXT("请选择运算符号"),TEXT("提示"),MB_OK);}

                _}break;

            _}

            _{itoa(i3,str3,10);}

            _{SetDlgItemText(hwnd,IDC_OUTPUT,str3);}

 

        _}break;

_{//==============================================================================}

        _{case IDC_CIRCLE:}

        _{

            _{TCHAR str1[32];}

            _{TCHAR str2[32];}

            _{GetDlgItemText(hwnd,IDC_R,str1,sizeof(str1));}

            _{float i1=atof(str1);}

            _{long float i2=PI*i1*i1;}

            _{ltoa(i2,str2,10);}

            _{//wsprintf(str2,"%lf",i2);}

            _{SetDlgItemText(hwnd,IDC_A,str2);}

        _}

        _break;

        _{case IDC_CONVERT:}

        _{

            _{TCHAR str1[32];}

            _{TCHAR str2[32];}

            _{GetDlgItemText(hwnd,IDC_10,str1,sizeof(str1));}

            _{int i1=atoi(str1);}

            _{itoa(i1,str2,2);}

            _{//wsprintf(str2,"%lf",i2);}

            _{SetDlgItemText(hwnd,IDC_2,str2);}

        _}

        _break;

_default:

        _break;

_}

_}

 

_{void Main_OnClose(HWND hwnd)}

_{

_{EndDialog(hwnd, 0);}

_}