[Delphi] a simple method for implementing automated objects

Source: Internet
Author: User

You do not need to create ActiveX library in Delphi. You can also create an automation object without editing TLB.

The secret is that $ methodinfo is a Compilation instruction without document descriptions.

First, we define a tscriptableobject that inherits from tobjectdispatch (objcomauto. Pas)

{$ Methodinfo on}
Tscriptableobject = Class (tobjectdispatch)
Public
Constructor create;
End;
{$ Methodinfo off}

....

{Tscriptableobject}

Constructor tscriptableobject. Create;
Begin
Inherited create (self, false );
End;

Therefore, tscriptableobject is a class with special capabilities. This class is a class with the idispatch interface, the Public & published method inherited from any subclass of tscriptableobject can be retrieved from getidsofnames and invoke is supported.

In this way, the tscriptableobject subclass is the Automation Object we need. This object can be used as the idispatch object required by getexternal of the idochostuihandler interface of webbrowser.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.