THdrEvent procedure type
Specifies an event handler signalled when an event occurs in a fixed header cell.
Declaration
THdrEvent = procedure(Sender: TObject; IsColumn: Boolean;
Index: Integer) of objectArguments
Sender | Control generating the event notification. |
IsColumn | True if the event applies to a column header; False when a row header is affected. |
Index | Index position for the row or column in the event notification. |
Description
THdrEvent specifies an event handler signalled when an event
occurs in a column header. Arguments passed to the event handler indicate
whether the action occurred for a column or a row header, and the index
position for the row or column.
THdrEvent is the type used to implement the
OnHeaderClick and
OnHeaderSized properties in
TCustomDrawGrid. Applications must implement an object procedure
using the event signature to respond to the event notification.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.