在你的Delphi文件夹下的 \Demos\ActiveX\COM+Event的文件夹下有详细地文档:利用COM+的Event进行程序开发,很简单地。全文如下:Creating and Installing COM+ EventsCreating a COM+ Event1. To Create and install a COM+ Event first create a new ActiveX Library. 2. Next create a COM+ Event object. 3. Add to the COM+ Event Object interface the methods along with parameters that will be passed to the subscriber. 4. Save the project and compile it.NOTE: Do not implement the methods for the generated object.Installing a COM+ Event1. Create a new COM+ Application in Component Services. You get to Component Services by going to Start, Settings, Control Panel, Administrative Tools, Component Services. 2. To create the application, in the tree view on the left go to Computers, My Computer, COM+ Applications. 3. Right click on COM+ Applications choose New, Application. Click Next, and Create an empty application. 4. Give the application a name. I suggest using all the defaults. 5. Now that you have the COM+ application created add the event. Expand the application and select Components. Right click on Components and choose New, Component. 6. Click Next and Choose Install new event class(es). Browse for the DLL that contains your COM+ Event Object and click Next and Finish. 7. The COM+ Event Object will now be visible in the Component Services. Creating and Installing COM+ SubscriptionsCreating a COM+ Subscription1. To Create a COM+ Subscription, create a new ActiveX Library. 2. Next create a COM+ Subscription Object and browse for the interface created for the COM+ Event. 3. Implement the generated methods that this object will subscribe to. 4. Save the project and compile it.Subscribing to a COM+ Event1. Expand the application and select Components. Right click on Components and choose New, Component. 2. Click Next and Choose Install new component(s). 3. Browse for the DLL that contains your COM Subscription Object and click Next and Finish. 4. Click on Subscriptions under the COM Subscription Object and right click and choose New, Subscription. 5. All COM+ Events will be shown in the dialog, choose the methods or entire object you want to subscribe to and click Next. 6. Now choose the COM+ Event object you are going to subscribe to and click Next. 7. Enter a Subscription name, click Enable this subscription immediately, and click Next. 8. The COM+ Subscription will now be visible in the Component Services. Creating COM+ Publishers1. To trigger the COM+ Event, in your application Choose Project, Import Type Library. 2. Add the added file to your uses clause or includes. 3. Create an instance of the COM+ Event Object’s interface and assign the object created by the constructor of the Co class to it, and to trigger the event call the method. COM+ will look up the subscriptions for you. So for example in C++ and Delphi:void __fastcall TForm1::Button1Click(TObject *Sender) { TCOMIClockEvent Event; Event = CoClockEvent::Create();
// Now call the COM+ event object as you normally // would: Event.SomeMethod() } procedure Tform1.Button1Click(Sender: TObject); var Event: IClockEvent; Hour, Minute, Second: Integer; begin Event := CoClockEvent.Create; // Now call the COM+ event object as you normally // would: Event.SomeMethod end;
AS_ApplyUpdates 、AS_GetRecords、 AS_DataRequest 、AS_GetProviderNames、
AS_GetParams、 AS_RowRequest 、AS_Execute
如果是 COM+ 的事件,不用写什么代码,只要在管理器中设置一下。
\Demos\ActiveX\COM+Event的文件夹下有详细地文档:利用COM+的Event进行程序开发,很简单地。全文如下:Creating and Installing COM+ EventsCreating a COM+ Event1. To Create and install a COM+ Event first create a new ActiveX Library.
2. Next create a COM+ Event object.
3. Add to the COM+ Event Object interface the methods along with parameters that will be passed to the subscriber.
4. Save the project and compile it.NOTE: Do not implement the methods for the generated object.Installing a COM+ Event1. Create a new COM+ Application in Component Services. You get to Component Services by going to Start, Settings, Control Panel, Administrative Tools, Component Services.
2. To create the application, in the tree view on the left go to Computers, My Computer, COM+ Applications. 3. Right click on COM+ Applications choose New, Application. Click Next, and Create an empty application. 4. Give the application a name. I suggest using all the defaults. 5. Now that you have the COM+ application created add the event. Expand the application and select Components. Right click on Components and choose New, Component. 6. Click Next and Choose Install new event class(es). Browse for the DLL that contains your COM+ Event Object and click Next and Finish. 7. The COM+ Event Object will now be visible in the Component Services. Creating and Installing COM+ SubscriptionsCreating a COM+ Subscription1. To Create a COM+ Subscription, create a new ActiveX Library.
2. Next create a COM+ Subscription Object and browse for the interface created for the COM+ Event.
3. Implement the generated methods that this object will subscribe to.
4. Save the project and compile it.Subscribing to a COM+ Event1. Expand the application and select Components. Right click on Components and choose New, Component.
2. Click Next and Choose Install new component(s). 3. Browse for the DLL that contains your COM Subscription Object and click Next and Finish. 4. Click on Subscriptions under the COM Subscription Object and right click and choose New, Subscription. 5. All COM+ Events will be shown in the dialog, choose the methods or entire object you want to subscribe to and click Next. 6. Now choose the COM+ Event object you are going to subscribe to and click Next. 7. Enter a Subscription name, click Enable this subscription immediately, and click Next. 8. The COM+ Subscription will now be visible in the Component Services.
Creating COM+ Publishers1. To trigger the COM+ Event, in your application Choose Project, Import Type Library.
2. Add the added file to your uses clause or includes.
3. Create an instance of the COM+ Event Object’s interface and assign the object created by the constructor of the Co class to it, and to trigger the event call the method. COM+ will look up the subscriptions for you. So for example in C++ and Delphi:void __fastcall TForm1::Button1Click(TObject *Sender)
{
TCOMIClockEvent Event;
Event = CoClockEvent::Create();
// Now call the COM+ event object as you normally
// would: Event.SomeMethod()
}
procedure Tform1.Button1Click(Sender: TObject);
var
Event: IClockEvent;
Hour, Minute, Second: Integer;
begin
Event := CoClockEvent.Create; // Now call the COM+ event object as you normally
// would: Event.SomeMethod
end;
但在DELPHI7中是否有现成的模版或控件可用呢
能不能举个例子?
http://www.applevb.com/DelphiBook.zip
是我的书中的配套源代码,里面有实现自动化事件的代码。