This function positions Slider A and updates the contents of the list box. <box_rect> is the redraw rectangle for the list box and <slider_rect> ist the redraw rectangle for the slider.
SCROLL TO works in principle like a call of lbox_set_slider() followed by a lbox_update(); scrolling takes place if possible, however, to reduce the amount of drawing required. One may therefore not use lbox_scroll_to() if the item list of the list box has changed.
Declaration:
void lbox_scroll_to( LIST_BOX *box, WORD first, GRECT *box_rect,
GRECT *slider_rect );
Call:
lbox_scroll_to( box, first, &box_rect, &slider_rect );
or
lbox_ascroll_to( box, first, &box_rect, &slider_rect );
Variable Argument Meaning
Inputs:
contrl[0] 175 lbox_set
contrl[1] 2 Entries in intin
contrl[3] 3 Entries in addrin
intin[0] 4 lbox_scroll_to
intin[1] first Index of the first visible entry
addrin[0] box Pointer to the list box structure
addrin[1] box_rect Pointer to redraw rectangle or 0L
addrin[2] slider_rect Pointer to redraw rectangle or 0L
Outputs:
contrl[2] 0 Entries in intout
contrl[4] 0 Entries in addrout