Переход к объекту поля списка путем ввода первых нескольких символов

Можете ли вы использовать вместо него CListView CListCtrl ? По умолчанию они работают так.

Я реализовал такую ​​функциональность в ядре Win32. Вот код.

Где-то в вашем цикле сообщений, который обрабатывает вставку окна списка:

 switch(message)
{   
   case WM_CHAR:       
    if(HandleListBoxKeyStrokes(hwnd, wParam) == FALSE)
                return FALSE;

....

Вот код (вероятно, не полностью завершен):

/* ======================================================================== */
/* ======================================================================== */
#define RETURNr(a, b) // homegrown asserts

BOOLEAN HandleListBoxKeyStrokes(HWND hwnd, UINT theKey)   

{
    #define MAXCHARCACHEINTERVALL 600.0  // Max. milisecs time offset to consider as typed 'at once'
    static char sgLastChars[255] = {'0'};
    static double  sgLastCharTime = 0.;

static HWND    sgLasthwnd = NULL;


if(GetSecs() - sgLastCharTime > MAXCHARCACHEINTERVALL ||
    sgLasthwnd != hwnd) 
    *sgLastChars = 0;

if(theKey == ' ' && *sgLastChars == 0)
    return TRUE; 

sgLastCharTime = GetSecs();
sgLasthwnd = hwnd; 

AppendChar(sgLastChars, toupper(theKey));

if(strlen(sgLastChars) > 1)
{
        LONG l = GetWindowLong(hwnd, GWL_STYLE);
        Char255 tx;
        GetClassName(hwnd, tx, sizeof(tx));
        if(  (! stricmp(tx, "Listbox") && 
              ! (l & (LBS_EXTENDEDSEL | LBS_MULTIPLESEL)) ) ||
             (! stricmp(tx, "ComboBox") &&  // combo Box support
                 l & CBS_DROPDOWNLIST   &&
              ! (l & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) ) )
        {
            long Count, l, BestMatch = - 1, BestMatchOff = 0;
            long LBcmdSet[] = {LB_GETCOUNT, LB_GETTEXTLEN  , LB_GETTEXT};
            long CBcmdSet[] = {CB_GETCOUNT, CB_GETLBTEXTLEN, CB_GETLBTEXT};
            long *cmdSet = (! stricmp(tx, "ComboBox")) ? CBcmdSet : LBcmdSet;

            RETURNr((Count = SendMessage(hwnd, cmdSet[0], 0, 0)) != LB_ERR, 0);
            for(int i = 0; i < Count; i++)


         {
                    RETURNr((l = SendMessage(hwnd, cmdSet[1], i, 0)) != LB_ERR, TRUE);
                    RETURNr( l < sizeof(tx), TRUE);
                    RETURNr((l = SendMessage(hwnd, cmdSet[2], i, (LPARAM)&tx)) != LB_ERR, TRUE);
                    strupr(tx);
                    if(! strncmp(tx, sgLastChars, strlen(sgLastChars)))
                    {
                        SelListBoxAndNotify(hwnd, i);
                        return FALSE;
                    }
                    char *p;
                    if(p = strstr(tx, sgLastChars))
                    {
                        int off = p - tx;
                        if(BestMatch == -1 || off < BestMatchOff)
                        {
                           BestMatch = i;
                           BestMatchOff = off;
                        }
                    }
                }
                // If text not found at start of string see if it matches some part inside the string
                if(BestMatch != -1)
                        SelListBoxAndNotify(hwnd, BestMatch);
                // Nothing found - dont process
                return FALSE;
            }
        }
        return TRUE;
    }
    /* ======================================================================== */
    /* ======================================================================== */

    void SelListBoxAndNotify(HWND hwnd, int index)

    {
    // i am sorry here - this is some XVT-toolkit specific code.
    // it has to be replaced with something similar for native Win32
        WINDOW win    = xvtwi_hwnd_to_window(hwnd);
        WINDOW parent = xvt_vobj_get_parent(win);
        xvt_list_set_sel(win, index, 1);
        EVENT evt;
        memset(&evt, 0, sizeof(evt));
        evt.type = E_CONTROL;
        evt.v.ctl.id = GetDlgCtrlID(hwnd);
        evt.v.ctl.ci.v.lbox.dbl_click = FALSE;
        xvt_win_dispatch_event(parent, &evt);  
    }
    /* ======================================================================== */
    /* ======================================================================== */

double  GetSecs(void)

{
        struct timeb timebuffer;
        ftime(&timebuffer);
        return (double)timebuffer.millitm + 
              ((double)timebuffer.time * 1000.) - // Timezone needed for DbfGetToday
              ((double)timebuffer.timezone * 60. * 1000.);
}
    /* ======================================================================== */
    /* ======================================================================== */

char    AppendChar(char *tx, char C)

{       int i;

        i = strlen(tx);
        tx[i    ] = C;
        tx[i + 1] = 0;
        return(C);
}