CanUndoEdit
Forms, interaction, edit history
Description
Reports whether the active TPDFlibFormSession edit has a retained history entry that UndoEdit can reverse
The result is False while no edit is active or the session is processing an edit, history replay or commit
Declaration
function CanUndoEdit: Boolean;Return value
Returns True when at least one retained edit can be undone, otherwise False
Example
UndoButton.Enabled := Session.CanUndoEdit;