#include <stdio.h>#include <stdlib.h>#include <string.h>#include <minigui/common.h>#include <minigui/minigui.h>#include <minigui/gdi.h>#include <minigui/window.h>#include <minigui/control.h>#define IDC_CTRL1     100#define IDC_CTRL2     110#define IDC_CTRL3     120#define IDC_CTRL4     130#define IDC_CTRL5     140static HWND hMainWnd = HWND_INVALID;static int ControlTestWinProc(HWND hWnd, int message, WPARAM wParam, LPARAM lParam){    int i;    static HWND hChildWnd1, hChildWnd2, hChildWnd3,hChildWnd4,hChildWnd5;    char temp[20];    switch (message) {        case MSG_CREATE:              hChildWnd5 = CreateWindow ("BUTTON",                                         "OK",                                         WS_CHILD                                         | WS_VISIBLE,                                         IDC_CTRL5,                                         200, 180, 40, 25, hWnd, 0);              hChildWnd1 = CreateWindow ("COMBOBOX",                               "combobox",                               WS_CHILD | CBS_DROPDOWNLIST | WS_VISIBLE,                               IDC_CTRL1,                               30, 12, 110, 24, hWnd, (DWORD)150);//150為Listbox的高度              hChildWnd2 = CreateWindow ("COMBOBOX",                               "",                               WS_CHILD| CBS_DROPDOWNLIST | WS_VISIBLE,                               IDC_CTRL2,                               30, 180, 110, 24, hWnd, (DWORD)90);//90為Listbox的高度              hChildWnd3 = CreateWindow ("COMBOBOX",                               "",                               WS_CHILD|WS_VISIBLE|CBS_DROPDOWNLIST,                               IDC_CTRL3,                               30, 140, 110, 24, hWnd,0);               hChildWnd4 = CreateWindow ("EDIT",                                         "ComBoBox Test",                                         WS_CHILD | WS_BORDER                                        | WS_VISIBLE,                                         IDC_CTRL4,                                         200, 30, 80, 30, hWnd, 0);           for(i=0;i<20;i++)           {             sprintf(temp,"%d-Welcome",i);            SendMessage(hChildWnd1,CB_ADDSTRING,0,(LPARAM)temp) ;            SendMessage(hChildWnd2,CB_ADDSTRING,0,(LPARAM)temp) ;            SendMessage(hChildWnd3,CB_ADDSTRING,0,(LPARAM)temp) ;          }         break;        case MSG_COMMAND:        {            int id   = LOWORD(wParam);            int code = HIWORD(wParam);            char str[151];            int i;             switch (id)            {                case IDC_CTRL1:                 if(code!=CBN_SELCHANGE)                    break;                  i=SendMessage(hChildWnd1,CB_GETCURSEL,0,0);                  if(i>=0)                   {                    SendMessage(hChildWnd1,CB_GETLBTEXT,i,(LPARAM)str);                    if(strlen(str))                     SetWindowText(hChildWnd4,str);                   }                break;                            case IDC_CTRL2:                break;                                case IDC_CTRL3:                {                break;                }                default:                break;            }        }        break;        case MSG_CLOSE:            DestroyMainWindow (hWnd);            MainWindowCleanup (hWnd);            hMainWnd = HWND_INVALID;        return 0;    }    return  DefaultMainWinProc(hWnd, message, wParam, lParam);}static void InitCreateInfo(PMAINWINCREATE pCreateInfo){    pCreateInfo->dwStyle = WS_CAPTION | WS_BORDER | WS_VISIBLE;    pCreateInfo->dwExStyle = WS_EX_IMECOMPOSE;    pCreateInfo->spCaption = "ComboBox control" ;    pCreateInfo->hMenu = 0;    pCreateInfo->hCursor = GetSystemCursor(IDC_ARROW);    pCreateInfo->hIcon = 0;    pCreateInfo->MainWindowProc = ControlTestWinProc;    pCreateInfo->lx = 0;     pCreateInfo->ty = 0;    pCreateInfo->rx = 320;    pCreateInfo->by = 240;    pCreateInfo->iBkColor = GetWindowElementColor (BKC_CONTROL_DEF);     pCreateInfo->dwAddData = 0;    pCreateInfo->hHosting = HWND_DESKTOP;}void combobox_demo (HWND hwnd){    MAINWINCREATE CreateInfo;    if (hMainWnd != HWND_INVALID) {        ShowWindow (hMainWnd, SW_SHOWNORMAL);        return;    }    InitCreateInfo (&CreateInfo);    CreateInfo.hHosting = hwnd;    hMainWnd = CreateMainWindow (&CreateInfo);}