please dont rip this site Prev Next

SetScrollPos info  Overview  Group

The SetScrollPos function sets the position of the scroll box (thumb) in the specified scroll bar and, if requested, redraws the scroll bar to reflect the new position of the scroll box.

The SetScrollPos function is provided for backward compatibility. New applications should use the SetScrollInfo function.

int SetScrollPos(

    HWND hWnd,

// handle of window with scroll bar

    int nBar,

// scroll bar flag

    int nPos,

// new position of scroll box

    BOOL bRedraw 

// redraw flag

   );

Parameters

hWnd
Identifies a scroll bar control or a window with a standard scroll bar, depending on the value of the nBar parameter.
nBar
Specifies the scroll bar to be set. This parameter can be one of the following values:

Value

Meaning

SB_CTL

Sets the position of the scroll box in a scroll bar control. The hWnd parameter must be the handle of the scroll bar control.

SB_HORZ

Sets the position of the scroll box in a window’s standard horizontal scroll bar.

SB_VERT

Sets the position of the scroll box in a window’s standard vertical scroll bar.

nPos
Specifies the new position of the scroll box. The position must be within the scrolling range. For more information about the scrolling range, see the SetScrollRange function.
bRedraw
Specifies whether the scroll bar is redrawn to reflect the new scroll box position. If this parameter is TRUE, the scroll bar is redrawn. If it is FALSE, the scroll bar is not redrawn.

Return Values

If the function succeeds, the return value is the previous position of the scroll box.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

If the scroll bar is redrawn by a subsequent call to another function, setting the bRedraw parameter to FALSE is useful.

Because the messages that indicate scroll bar position, WM_HSCROLL and WM_VSCROLL, are limited to 16 bits of position data, applications that rely solely on those messages for position data have a practical maximum value of 65,535 for the SetScrollPos function’s nPos parameter.

However, because the SetScrollInfo, SetScrollPos, SetScrollRange, GetScrollInfo, GetScrollPos, and GetScrollRange functions support 32-bit scroll bar position data, there is a way to circumvent the 16-bit barrier of the WM_HSCROLL and WM_VSCROLL messages. See GetScrollInfo for a description of the technique.

See Also

GetScrollInfo, GetScrollPos, GetScrollRange, SetScrollInfo, SetScrollRange 


file: /Techref/os/win/api/win32/func/src/f81_10.htm, 5KB, , updated: 2000/4/7 12:19, local time: 2024/3/28 01:58,
TOP NEW HELP FIND: 
184.72.135.210:LOG IN

 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF="http://www.sxlist.com/techref/os/win/api/win32/func/src/f81_10.htm"> SetScrollPos</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

 

Welcome to sxlist.com!


Site supported by
sales, advertizing,
& kind contributors
just like you!

Please don't rip/copy
(here's why

Copies of the site on CD
are available at minimal cost.
 

Welcome to www.sxlist.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .