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SCROLLINFO structure (winuser.h)
The SCROLLINFO structure contains scroll bar parameters to be set by the SetScrollInfo function (or SBM_SETSCROLLINFO message), or retrieved by the GetScrollInfo function (or SBM_GETSCROLLINFO message).
Syntax
typedef struct tagSCROLLINFO {
UINT cbSize;
UINT fMask;
int nMin;
int nMax;
UINT nPage;
int nPos;
int nTrackPos;
} SCROLLINFO, *LPSCROLLINFO;
Members
cbSize
Type: UINT
Specifies the size, in bytes, of this structure. The caller must set this to sizeof(SCROLLINFO).
fMask
Type: UINT
Specifies the scroll bar parameters to set or retrieve. This member can be a combination of the following values:
| Value | Meaning |
|---|---|
|
Combination of SIF_PAGE, SIF_POS, SIF_RANGE, and SIF_TRACKPOS. |
|
This value is used only when setting a scroll bar's parameters. If the scroll bar's new parameters make the scroll bar unnecessary, disable the scroll bar instead of removing it. |
|
The nPage member contains the page size for a proportional scroll bar. |
|
The nPos member contains the scroll box position, which is not updated while the user drags the scroll box. |
|
The nMin and nMax members contain the minimum and maximum values for the scrolling range. |
|
The nTrackPos member contains the current position of the scroll box while the user is dragging it. |
nMin
Type: int
Specifies the minimum scrolling position.
nMax
Type: int
Specifies the maximum scrolling position.
nPage
Type: UINT
Specifies the page size, in device units. A scroll bar uses this value to determine the appropriate size of the proportional scroll box.
nPos
Type: int
Specifies the position of the scroll box.
nTrackPos
Type: int
Specifies the immediate position of a scroll box that the user is dragging. An application can retrieve this value while processing the SB_THUMBTRACK request code. An application cannot set the immediate scroll position; the SetScrollInfo function ignores this member.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | winuser.h (include Windows.h) |
See also
Reference
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