TTMSFNCTreeViewColumn.ExpandingButtonSize Property
Size of the expand/collapse button on the column header in logical pixels.
API unit family: TMSFNCTreeViewData
Declaring type: TTMSFNCTreeViewColumn
Type: Single
Syntax
property ExpandingButtonSize: Single;
__property float ExpandingButtonSize = {read=FExpandingButtonSize, write=SetExpandingButtonSize, stored=IsExpandingButtonSizeStored};