Delphi 其他常用事件类型（TMouseEvent 、TMouseMoveEvent 、TKeyEvent 、TKeyPressEvent 、TDragOverEvent 、TDragDropEvent 、TStartDragEvent 、TEndDragEvent 、TDockDropEvent 、TDockOverEvent ...）

  TMouseEvent = procedure(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer) of object;  //鼠标事件
  TMouseMoveEvent = procedure(Sender: TObject; Shift: TShiftState; X, Y: Integer) of object; //鼠标移动时间
  TKeyEvent = procedure(Sender: TObject; var Key: Word; Shift: TShiftState) of object;
  TKeyPressEvent = procedure(Sender: TObject; var Key: Char) of object;
  TDragOverEvent = procedure(Sender, Source: TObject; X, Y: Integer; State: TDragState; var Accept: Boolean) of object;
  TDragDropEvent = procedure(Sender, Source: TObject; X, Y: Integer) of object;
  TStartDragEvent = procedure(Sender: TObject; var DragObject: TDragObject) of object;
  TEndDragEvent = procedure(Sender, Target: TObject; X, Y: Integer) of object;
  TDockDropEvent = procedure(Sender: TObject; Source: TDragDockObject; X, Y: Integer) of object;
  TDockOverEvent = procedure(Sender: TObject; Source: TDragDockObject; X, Y: Integer; State: TDragState; var Accept: Boolean) of object;
  TUnDockEvent = procedure(Sender: TObject; Client: TControl; NewTarget: TWinControl; var Allow: Boolean) of object;
  TStartDockEvent = procedure(Sender: TObject; var DragObject: TDragDockObject) of object;
  TGetSiteInfoEvent = procedure(Sender: TObject; DockClient: TControl; var InfluenceRect: TRect; MousePos: TPoint; var CanDock: Boolean) of object;
  TCanResizeEvent = procedure(Sender: TObject; var NewWidth, NewHeight: Integer; var Resize: Boolean) of object;
  TConstrainedResizeEvent = procedure(Sender: TObject; var MinWidth, MinHeight, MaxWidth, MaxHeight: Integer) of object;
  TMouseWheelEvent = procedure(Sender: TObject; Shift: TShiftState; WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean) of object;
  TMouseWheelUpDownEvent = procedure(Sender: TObject; Shift: TShiftState; MousePos: TPoint; var Handled: Boolean) of object;
  TContextPopupEvent = procedure(Sender: TObject; MousePos: TPoint; var Handled: Boolean) of object;