Function NHMenuListWndProc

win/win32/mhmenu.c:1652–1722

-----------------------------------------------------------------------------*/ List window Proc */

/*-----------------------------------------------------------------------------*/
/* List window Proc */
LRESULT CALLBACK
NHMenuListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    HWND hWndParent = GetParent(hWnd);
    BOOL bUpdateFocusItem;

    /* we will redraw focused item whenever horizontal scrolling occurs
       since "Count: XXX" indicator is garbled by scrolling */
    bUpdateFocusItem = FALSE;

    switch (message) {
    case WM_KEYDOWN:
        if (wParam == VK_LEFT || wParam == VK_RIGHT)
            bUpdateFocusItem = TRUE;
        break;

    case WM_CHAR: /* filter keyboard input for the control */
        if (wParam > 0 && wParam < 256
            && onListChar(GetParent(hWnd), hWnd, (char) wParam) == -2) {
            return 0;
        } else {
            return 1;
        }
        break;

    case WM_SIZE:
    case WM_HSCROLL:
        bUpdateFocusItem = TRUE;
        break;

    case WM_SETFOCUS:
        if (GetParent(hWnd) != GetNHApp()->hPopupWnd) {
            SetFocus(GetNHApp()->hMainWnd);
        }
        return FALSE;

    case WM_MSNH_COMMAND:
        if (wParam == MSNH_MSG_RANDOM_INPUT) {
            char c = randomkey();
            if (c == '\n')
                PostMessage(hWndParent, WM_COMMAND, MAKELONG(IDOK, 0), 0);
            else if (c == '\033')
                PostMessage(hWndParent, WM_COMMAND, MAKELONG(IDCANCEL, 0), 0);
            else
                PostMessage(hWnd, WM_CHAR, c, 0);
            return 0;
        }
        break;

    }

    /* update focused item */
    if (bUpdateFocusItem) {
        int i;
        RECT rt;

        /* invalidate the focus rectangle */
        i = ListView_GetNextItem(hWnd, -1, LVNI_FOCUSED);