Разработка компонентов в DELPHI. Вощинская Г.Э. - 21 стр.

UptoLike

Составители:

Рубрика:

FOnMouseDown : TMouseEvent;

FOnMouseMove : TMouseMiveEvent;

…

protected

procedure Click; dynamic;

property OnClick: TNotifyEvent

read FOnClick write FOnClick;

property OnDblClick : TNotifyEvent

read FOnDblClick write OnDblClick;

property OnMouseDown : TMouseEvent

read FOnMouseDown write FOnMouseDown;

property OnMouseMove : TMouseMoveEvent

read FOnMouseMove write FOnMouseMove;

…

end;

ɋɨɛɵɬɢɹ ɫɨɫɬɨɹɬ ɢɡ ɞɜɭɯ ɱɚɫɬɟɣ. ȼɨ-ɩɟɪɜɵɯ, ɞɥɹ ɫɨɛɵɬɢɹ ɬɪɟɛɭɟɬɫɹ

ɜɧɭɬɪɟɧɧɟɟ ɩɨɥɟ ɞɚɧɧɵɯ (ɧɚɩɪɢɦɟɪ FOnClick

), ɤɨɬɨɪɨɟ ɢɫɩɨɥɶɡɭɟɬɫɹ ɞɥɹ

ɯɪɚɧɟɧɢɹ ɭɤɚɡɚɬɟɥɹ ɧɚ ɦɟɬɨɞ. ȼɨ-ɜɬɨɪɵɯ, ɫɨɡɞɚɟɬɫɹ ɫɨɨɬɜɟɬɫɬɜɭɸɳɟɟ ɫɜɨɣ-

ɫɬɜɨ (ɧɚɩɪɢɦɟɪ OnClick), ɤɨɬɨɪɨɟ ɜɨ ɜɪɟɦɹ ɩɪɨɟɤɬɢɪɨɜɚɧɢɹ ɩɪɟɞɨɫɬɚɜɥɹ-

ɟɬ ɜɨɡɦɨɠɧɨɫɬɶ ɩɪɢɫɨɟɞɢɧɟɧɢɹ ɨɛɪɚɛɨɬɱɢɤɨɜ ɫɨɛɵɬɢɣ.

ɋɨɛɵɬɢɹ, ɨɛɳɢɟ ɞɥɹ ɜɫɟɯ ɤɨɦɩɨɧɟɧɬɨɜ: OnClick, OnDblClick,

OnMouseDown, OnMouseMove, OnMouseUp, OnDragOver,

OnDragDrop, OnEndDrag.

ɋɨɛɵɬɢɹ ɨɤɨɧɧɵɯ ɷɥɟɦɟɧɬɨɜ ɭɩɪɚɜɥɟɧɢɹ: OnEnter, OnExit, On-

KeyDown, OnKeyUp, OnKeyPress.

ɉɨ ɭɦɨɥɱɚɧɢɸ ɜɫɟ ɞɚɧɧɵɟ ɫɨɛɵɬɢɹ ɜ ɤɥɚɫɫɟ TComponent ɨɛɴɹɜɥɟ-

ɧɵ ɜ ɫɟɤɰɢɢ protected. ɋɥɟɞɨɜɚɬɟɥɶɧɨ, ɫɬɚɧɞɚɪɬɧɵɟ ɫɨɛɵɬɢɹ ɧɟ ɜɢɞɧɵ

ɩɨɥɶɡɨɜɚɬɟɥɹɦ ɤɨɦɩɨɧɟɧɬɚ ɢ ɞɨɥɠɧɵ ɛɵɬɶ ɩɨɜɬɨɪɧɨ ɨɛɴɹɜɥɟɧɵ (ɨɩɭɛɥɢ-

ɤɨɜɚɧɵ) ɜ ɫɟɤɰɢɢ published.

type