CWnd::GetScrollRange

  • 项目

voidGetScrollRange(intnBar**,LPINTlpMinPos,LPINTlpMaxPos)const;**

Parameters

nBar

Specifies the scroll bar to examine. The parameter can take one of the following values:

  • SB_HORZ   Retrieves the position of the horizontal scroll bar.

  • SB_VERT   Retrieves the position of the vertical scroll bar.

lpMinPos

Points to the integer variable that is to receive the minimum position.

lpMaxPos

Points to the integer variable that is to receive the maximum position.

Remarks

Copies the current minimum and maximum scroll-bar positions for the given scroll bar to the locations specified by lpMinPos and lpMaxPos. If CWnd does not have a scroll bar, then the GetScrollRange member function copies 0 to lpMinPos and lpMaxPos.

The default range for a standard scroll bar is 0 to 100. The default range for a scroll-bar control is empty (both values are 0).

CWnd Overview |  Class Members |  Hierarchy Chart

See Also