ActiveX/COM Inspector - v1.0

ActiveX/COM Inspector - Desciption:

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The Object tree shows all objects the Inspector is viewing. It is here that you create objects, invoke methods and get/set properties. In this example of part of an Internet Explorer Document object, we see properties, a method , and objects. The Object tree is composed of object members that point to other objects. For example, the images property points to an IHTMLElementCollection object (shown expanded). The result of the GetEnumerator method is a list of objects. Lists of objects are presented directly as lists, the details of the list implementation are not shown. You may create an object and insert it into the list by dragging the class to the list object. You may also cut/copy/paste objects between these lists. A name is associated with each object based on the value of its properties. Here we can see that each HTMLImgClass object is named after the image file (redcurtain728x90.jpg for example). You may cast any object to another type. This type is then used to display the object. Event tracing can be turned on for all events in an object, or selected events. The screen shot to the right shows the list of events as they occur. The shot below shows the detail of a selected event. Note that the event parameters appear in the detail as links if they are an object. Clicking on them presents the object in the object tree. The number under "Inc" is the event incarnation. This is used to determine which the causal relationship of events. The first event with the same incarnation number caused the other events with that number. You can see this in the event with incarnation number 27. Also note that the stack trace when the event occurred is shown. The Inspector includes a browser for ActiveX/COM type information. This includes ActiveX/COM information in the registry, and the capability to browse any controls or type libraries you open. This browser is a superset of the capabilities of the Microsoft OLE/COM Object Viewer's type browser. When you open (by expanding) a registered type library, it is automatically moved to the Favorite part of the tree for easy access in the future. When a type library is opened, it is automatically converted to a .NET assembly (because the Inspector uses the .NET interoperability for access to ActiveX/COM). This assembly is viewed in the Assemblies/Types panel (not shown, it is selectable as an option). When any type information is presented and there is documentation available, a show documentation link is provided. The Inspector is designed to manipulate visual controls. This is done with using the .NET Forms Designer technology, the same technology used in the Forms Designer of Visual Studio .NET. Here we see two controls from the Microsoft Forms type library on the design surface. Note that they can be resized or moved using the forms designer. Below we present a small example of adding an item to the combo box and tracing the events associated with this visual control. This view of the object tree for the control shows the methods, including AddItem that can be used to add an item to the control. You want to find out how to write VB/VBA code to copy the range of cells A1-C1 to A3 in a spreadsheet. You don't know anything about the Excel Automation interface. Start Excel, then start the Inspector. In Excel, put some text in cells A1 and C1. Expand the "Microsoft Excel" tree node on the left panel, then expand "Properties", which should look similar to shot on the right.

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