MDI子表单(实际上是任何表单)在被销毁时将通知主表单.您可以使用此通知机制.例:
type
TForm1 = class(TForm)
..
protected
procedure Notification(AComponent: TComponent; Operation: TOperation);
override;
..
procedure TForm1.Notification(AComponent: TComponent; Operation: TOperation);
begin
inherited;
if (Operation = opRemove) and (AComponent is TForm) and
(TForm(AComponent).FormStyle = fsMDIChild) and
(MDIChildCount = 0) then begin
// do work
end;
end;
Run Code Online (Sandbox Code Playgroud)
| 归档时间: |
|
| 查看次数: |
2091 次 |
| 最近记录: |