/*** $Id: combobox.c,v 1.4 2003/06/06 10:10:47 weiym Exp $**** combobox.c: The ComboBox control demo program.**** Copyright (C) 2001 ~ 2002 Wei Yongming.** Copyright (C) 2003 Feynman Software.**** Create date: 2001/11/01*//***  This source is free software; you can redistribute it and/or**  modify it under the terms of the GNU General Public**  License as published by the Free Software Foundation; either**  version 2 of the License, or (at your option) any later version.****  This software is distributed in the hope that it will be useful,**  but WITHOUT ANY WARRANTY; without even the implied warranty of**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU**  General Public License for more details.****  You should have received a copy of the GNU General Public**  License along with this library; if not, write to the Free**  Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,**  MA 02111-1307, USA*/#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_BOX1        100#define IDC_BOX2        200#define IDC_BOX3        300#define IDC_BOX4        400#define IDC_BOX5        500#define IDC_SELECTED    600static HWND hMainWnd = HWND_INVALID;static void create_combobox (HWND parent){    int i;    HWND hwnd1, hwnd2, hwnd3, hwnd4;    char temp[20];    DIR*    dir;    struct  dirent* dir_ent;    hwnd1 = CreateWindow (CTRL_COMBOBOX,             "combobox",            WS_VISIBLE | CBS_DROPDOWNLIST | CBS_NOTIFY | CBS_READONLY,            IDC_BOX1,            10, 10, 180, 24,            parent, 100);    hwnd2 = CreateWindow (CTRL_COMBOBOX,            "combobox",            WS_VISIBLE | CBS_SPINLIST | WS_TABSTOP | CBS_SORT,            IDC_BOX2,            10, 40, 180, 24,            parent, 0);    hwnd3 = CreateWindow (CTRL_COMBOBOX,            "0",            WS_VISIBLE | CBS_AUTOSPIN | WS_TABSTOP,            IDC_BOX3,            10, 70, 180, 24,            parent, 0);    hwnd4 = CreateWindow (CTRL_COMBOBOX,            "0",            WS_VISIBLE | CBS_SIMPLE | CBS_SORT | WS_TABSTOP,            IDC_BOX4,            10, 100, 180, 24,            parent, 100);    dir = opendir ("./");    while ( (dir_ent = readdir ( dir )) != NULL ) {        SendMessage (hwnd1, CB_ADDSTRING, 0, (LPARAM)dir_ent->d_name);        SendMessage (hwnd4, CB_ADDSTRING, 0, (LPARAM)dir_ent->d_name);    }    closedir (dir);    for (i = 0; i < 1000; i++) {         sprintf (temp, "Welcome: %03d", i);        SendMessage (hwnd2, CB_ADDSTRING, 0, (LPARAM)temp);    }}static int ControlTestWinProc(HWND hWnd, int message, WPARAM wParam, LPARAM lParam){    switch (message) {        case MSG_CREATE:              create_combobox (hWnd);              CreateWindow (CTRL_STATIC,                        "selected",                         WS_CHILD | WS_VISIBLE | SS_SIMPLE,                         IDC_SELECTED,                         210, 10, 200, 25, hWnd, 0);              CreateWindow (CTRL_BUTTON,                        "Close",                         WS_CHILD | WS_VISIBLE,                         IDCANCEL,                         280, 200, 60, 25, hWnd, 0);        break;        case MSG_COMMAND:        {            int id   = LOWORD(wParam);            int code = HIWORD(wParam);            char str [NAME_MAX + 20], file [NAME_MAX + 1];            int selected;             if (wParam == IDCANCEL) {                PostMessage (hWnd, MSG_CLOSE, 0, 0);                break;            }            switch (id) {            case IDC_BOX1:                if (code != CBN_SELCHANGE)                    break;                selected = SendDlgItemMessage (hWnd, IDC_BOX1, CB_GETCURSEL,0,0);                if (selected >= 0) {                    SendDlgItemMessage (hWnd, IDC_BOX1, CB_GETLBTEXT, selected, (LPARAM)file);                    if (strlen (file)) {                        sprintf (str, "Selected: %s", file);                        SetDlgItemText (hWnd, IDC_SELECTED, str);                    }                }                break;            }        }        break;	case MSG_DESTROY:            DestroyAllControls (hWnd);            hMainWnd = HWND_INVALID;	    return 0;        case MSG_CLOSE:            DestroyMainWindow (hWnd);            MainWindowThreadCleanup (hWnd);            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_NONE;    pCreateInfo->spCaption = "ComboBox controls";    pCreateInfo->hMenu = 0;    pCreateInfo->hCursor = GetSystemCursor(IDC_ARROW);    pCreateInfo->hIcon = 0;    pCreateInfo->MainWindowProc = ControlTestWinProc;    pCreateInfo->lx = 0;     pCreateInfo->ty = 0;    pCreateInfo->rx = 400;    pCreateInfo->by = 280;    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);}