Topic       : TOS - The Operating System
Author      : 
Version     : tos.hyp (December 19, 2008)
Subject     : Programmieren/Atari
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Index Size  : 93790
HCP-Version : 5
Compiled on : Atari
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View Ref-File8.14.2  lbox_bscroll_to                                            TOS

 Name:         »List box scroll to, Slider B« - Set position of slider 
               B of the list box.

 Opcode:       175 (sub-opcode 7)

 Syntax:       void lbox_bscroll_to ( LIST_BOX *box, int16_t first, 
               GRECT *box_rect, GRECT *slider_rect );

 Description:  The call lbox_bscroll_to positions slider B of a list 
               box. The following apply:

                Parameter    Meaning

                box          Pointer to the list box structure
                first        Index of the first visible entry
                box_rect     Pointer to redraw rectangle or 0L
                slider_rect  Pointer to redraw rectangle or 0L

               Hint: The parameter box_rect is the redraw rectangle 
               for the list box and slider_rect is the redraw 
               rectangle for the slider.

               The function works in principle like a call of 
               lbox_set_bslider 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.

 Return value: The function does not return a result.

 Availability: The presence of this call should be checked for using 
               appl_getinfo (Opcode 7).

 Group:        List boxes

 See Also:     Binding   lbox_free_items   lbox_get_slct_item