Declaration

long DoGetExtent(BOOL isfine)

Use

This method returns the current coarse or fine extent of the scrollbar.

Parameter

NAME	TYPE	VALUE AND MEANING
isFine	BOOL	TRUE The fine extent is computed, being the unit change in position by moving the finetracker at the current tracklevel of the Scrollbar, equal to the Pagesize multiplied by DynRadix raised to the power of m_TrackLevel. FALSE The coarse extent is computed, being the unit change in position by moving the coarsetracker at the maximum tracklevel of the Scrollbar, equal to the Pagesize multiplied by DynRadix raised to the power of m_TrackLevelMax.

NAME

TYPE

VALUE AND MEANING

isFine

BOOL

TRUE

The fine extent is computed, being the unit change in position by moving the finetracker at the current tracklevel of the Scrollbar, equal to the Pagesize multiplied by DynRadix raised to the power of m_TrackLevel.

FALSE

The coarse extent is computed, being the unit change in position by moving the coarsetracker at the maximum tracklevel of the Scrollbar, equal to the Pagesize multiplied by DynRadix raised to the power of m_TrackLevelMax.

Return Value

The value computed of type long is returned.

DoGetExtent