TreeView_SetAutoScrollInfo macro
Sets information used to determine auto-scroll characteristics. Use this macro or send the TVM_SETAUTOSCROLLINFO message explicitly.
Syntax
LRESULT TreeView_SetAutoScrollInfo( HWND hwnd, UINT uPixPerSec, UINT uUpdateTime );
Parameters
- hwnd
-
Type: HWND
Handle to the tree-view control.
- uPixPerSec
-
Type: UINT
Specifies pixels per second. The offset to scroll is divided by the uPixPerSec to determine the total duration of the auto-scroll.
- uUpdateTime
-
Type: UINT
Specifies the redraw time interval. Redraw at every elasped interval, until the item is scrolled into view. Given uPixPerSec, the location of the item is calculated and a repaint occurs. Set this value to create smooth scrolling.
Return value
Returns TRUE.
Remarks
Autoscroll information is used to scroll a nonvisible item into view. The control must have the TVS_EX_AUTOHSCROLL extended style. For information on extended styles, see Tree-View Control Extended Styles.
Requirements
|
Minimum supported client |
Windows Vista [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2008 [desktop apps only] |
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Header |
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