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Objective Grid: Determining scroll bar visibility

Article ID: 66

Last updated: 16 Apr, 2018

Article ID: 66

Last updated: 16 Apr, 2018

Revision: 3

Posted: 12 Jan, 2001
by Meltreger B.

Updated: 16 Apr, 2018
by Meltreger B.

Problem

How can I determine if scroll bars are visible?

Cause

Action

The following code shows you how to determine if scrollbars are visible:

BOOL bLastRowVisible, bLastColVisible;
CRect rect = GetGridRect();

CalcBottomRowFromRect(rect, bLastRowVisible);
CalcRightColFromRect(rect, bLastColVisible);

// TRUE if scrollbar is needed...
BOOL bVertScrollbar = GetTopRow() > GetFrozenRows() +1 || !bLastRowVisible;

// TRUE if scrollbar is needed...
BOOL bHorzScrollbar = GetLeftCol() > GetFrozenCols() +1 || !bLastColVisible;

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Article ID: 66

Last updated: 16 Apr, 2018

Revision: 3

Posted: 12 Jan, 2001 by Meltreger B.

Updated: 16 Apr, 2018 by Meltreger B.

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