The SDL Component Suite is an industry leading collection of components supporting scientific and engineering computing. Please visit the SDL Web site for more information....


Declaration: property OnChange: TNotifyEvent;
property OnClick: TNotifyEvent;
property OnDblClick: TNotifyEvent;
property OnEnter;
property OnExit;
property OnKeyDown: TKeyEvent;
property OnKeyPress: TKeyPressEvent;
property OnKeyUp: TKeyEvent;
property OnMouseMove: TMouseMoveEvent;
property OnMouseDown: TMouseEvent;
property OnMouseUp: TMouseEvent;

The OnChange event is triggered whenever the text of the TNumIO control changes (even if it is changed by the program and not by the user). All other events perform like the corresponding standard events of other Delphi/C++Builder controls (see the compiler manuals for more details).

Example: Some of these events are used in the following example programs (see for downloading the code): gradfill, numin, poldiag, simplegeomap

Last Update: 2012-Okt-20