TControlScrollBar.HandleAllocated function

Member of TControlScrollBarprotectedIn unit Forms

True when the associated TScrollingWinControl and its handle are valid.

Declaration

pascal

function HandleAllocated: Boolean; virtual

True when the associated TScrollingWinControl and its handle are valid.

Used in methods which call LCL interface routines to avoid exceptions resulting from an unassigned control or an invalid handle value.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.