Interop

There can be only one primary interop assembly, which must be signed with a strong name by the publisher of the COM type library.

Registration is the best way for you to locate a primary interop assembly on your computer.

PtrToStructure is often necessary in COM interop and platform invoke when structure parameters are represented as an System. IntPtr value.

Using this attribute in an application that does not use COM interop has no effect.

However, the COM objects referred to by interop assemblies must be properly registered on the computer where they are to be used.

Only the library vendor can produce a primary interop assembly , which is signed by the publisher with a strong name .

Gets the name and code base of a primary interop assembly for a specified type library.

The rest of this article describes the scenarios for deploying interop assemblies with your application.

I suspect that the concept of "social network interop" will eventually mirror the current situation in the instant messaging world today.

The application thread is only initialized for COM interop if the thread actually makes a call to a COM component.

COM interop wrappers are sometimes referred to as "primary interop assemblies. "

This element enables you to trade faster interop marshaling for run-time resilience against incorrect platform invoke declarations.

However, many Notification Services classes have been developed to be used from unmanaged code as well through COM interop.

The Marshaling Changes topic identifies several cases that require you to edit the interop assembly and describes the changes needed.

On top of that, however, we are adding a number of other small features that further improve the interop experience.

However, you do not have to deploy the primary interop assembly with your application.

The Using the Office XP Primary Interop Assemblies section of this article provides the download location for the Office XP PIAs.

So far, I've been more than satisfied with relying on COM interop to give me the best of both worlds.

To simplify access to the interop assembly, add an Imports statement to the top of the class or module in which you will use the COM object.

ParameterModifier is only used when calling through COM interop, and only parameters that are passed by reference are handled.

The solution in Walkthrough: Supporting COM Interop by Displaying Each Windows Form on Its Own Thread creates a new thread for each form.

You do not have to deploy the interop assembly with your application.

Note that you must sign a primary interop assembly with a strong name.

The output for interop logging consists of the signatures of the interop function calls as they occur at run time, with any error messages.

In this case, the interop assembly must be deployed with your application.

Gets a Microsoft. Office. Interop. Word. Bookmarks collection that represents all the bookmarks inside of the Bookmark control.

Primary interop assemblies, which are used for COM interoperability.

To do this, perform a Complete installation of Microsoft Office, or install the redistributable package for the primary interop assemblies.

For a list of attributes that you can apply to source code, see Applying Interop Attributes.

Default properties are seen in the interop assemblies as properties with the name Item.

Visual Studio uses a registered primary interop assembly by default when a developer references a type in the corresponding type library.

The interop marshaling service uses these attributes to determine how each parameter should be marshaled between managed and unmanaged code.

The ideal goal here would be to achieve a standard way for such interop to allow different bug trackers to talk to each other.

These sections do not represent every case for editing an interop assembly.

Register the assembly for COM interop by using one of the methods described in Packaging an Assembly for COM.

Represents a Microsoft. Office. Interop. Excel. Workbook object that exposes events and acts as a container for components.

Primary interop assemblies must be signed with strong names using standard public key cryptography.

The Microsoft. Office. Interop. Excel. : : . Workbook class represents a single workbook within the Excel application.

A common use of the extern modifier is with the DllImport attribute when you are using Interop services to call into unmanaged code.

This section describes the two types of manifests needed for registration-free COM interop: application and component manifests.

If you intend to expose types in an assembly to COM applications, consider the requirements of COM interop at design time.

Is particularly useful to specify default parameters for methods of a COM interop interface.

With C interop, the programmer explicitly marshals data in her code wherever she deems appropriate.

One sore point for users of the first Interop Forms was the inability to create MDI child forms.

When methods of the interop assembly are called, a managed-to-unmanaged transition is executed and control is passed to the COM component.

The interop scenarios are very useful, but certainly not complete (particularly in reliable messaging).

When you use embedded interop types, you can embed them from the primary interop assembly published by the author of the COM component.

However, due to potential language and COM interop issues it is strongly recommended that you use only English function names in your code.

Generates a separate interop assembly, which it must be deployed with the final application.

Gets a Microsoft. Office. Interop. Excel. SmartTagOptions object representing the options that can be performed with a smart tag.

A primary interop assembly is a unique, vendor-supplied assembly that contains type definitions (as metadata) of types implemented with COM.

This class wraps the Microsoft. Office. Interop. Outlook. Application class, which represents the Outlook application.

In this case the interop code is built into the application, so there is no dependency on a separate assembly.

Responses from the COM object are routed to the interop assembly and forwarded to your. NET Framework application.

For a complete discussion of COM interop, see Advanced COM Interoperability.

By default, COM interop applications calling to managed code use the latest version of the runtime installed on the computer.

Assemblies used by COM interop must be registered in the catalog, although in some cases this registration occurs automatically.

Interop logs now include information about marshaled objects that are contained in structures or in reference types.

You define the name when you generate the primary interop assembly.

By default, COM interop generates a dispatch-only interface for each class you export to a type library.

If you revise a primary interop assembly after shipping it, increment the assembly version number to differentiate later versions.

By default, this check box is cleared, specifying that the application will not allow COM interop.

Interop assemblies implicitly implement interfaces that represent COM classes.

The only way to determine which customizations are necessary is to actually write code using the interop assembly.

When there is a reference to the primary interop assembly in your project, you can write managed code that automates the Office application.

When COM interop imports a COM type, it produces a. NET Framework method signature equivalent to the original COM method signature.

The output for a function signature entry consists of three lines for each interop call.

This message box is displayed when the project system could not create a COM interop wrapper for a particular component.

For more information about producing and using primary interop assemblies, see Primary Interop Assemblies.

This action creates an interop assembly and automatically adds the assembly as a reference.

For more information, see Managed Code and Office Programming with Visual Studio and Office Primary Interop Assemblies.

Some parameters and return values have different default marshaling behavior when used with COM interop or platform invoke.

Specify the Full path with file name to the Saml-Interop-Provider-Bindings. zip file provided with this article, and click OK.

When a managed client and unmanaged server are in the same apartment, the interop marshaling service handles all data marshaling.

When you call into the InfoPath object model from an add-in, you use types that are provided in the primary interop assembly for InfoPath.

References to the members of the COM object are routed to the interop assembly and then forwarded to the actual COM object.

Gets or sets a Microsoft. Office. Interop. Word. ParagraphFormat object that represents the paragraph settings for the Bookmark control.

Without error handling, interop calls often generate errors that provide little information.

Primary: Use this wrapper tool when you want to use an already generated primary interop assembly for the COM component.

This tool creates an interop assembly and namespace for the type information automatically.

References to the main primary interop assemblies for the project.

COM interop generates the necessary delegates in metadata that you include in your managed client.

Provides a wide variety of members that support COM interop and platform invoke services.

COM Interop applications with a client and remote or local server.

Xandros will also become a member of the Microsoft Interop Vendor Alliance.

The following table describes attributes that COM interop tools apply during the conversion process.

However, to write a preview handler in managed code, you must first write or obtain COM interop definitions for each of these interfaces.

You can adjust the outcome of the conversion process performed by COM interop tools and APIs by using design-time attributes.

Primary interop assemblies can reference only other primary interop assemblies.

Reference only other primary interop assemblies for external COM dependencies.

Public reserved option for temporary interop conditions; the use will change.

Publishers of COM components produce primary interop assemblies and distribute them to developers for use in .

A global cache holds a mapping from CLR class to the Ruby class object that wraps the method calls on the interop class.

The following table shows interop logging of a delegate callback.

Alternatively, you can apply interop-specific attributes to imported types and generate a new assembly.

For instructions. This topic describes the output written to log files for interop and loader logging.

One common interop problem involves errors in event handlers that handle events raised by COM objects.

Add a custom class that implements the Microsoft. Office. Interop. Outlook. FormRegionStartup interface.

This key value must be set to enable the three types of logging: Interop, Loader, and Networking.

You can embed COM types so that your application no longer requires a primary interop assembly (PIA) on the target computer.

The following table shows interop logging of a platform invoke.

COM interop, which enables managed code to interact with COM objects through interfaces.

The runtime automatically maps the HRESULT from COM interop to more specific exceptions.

This step also registers the project for COM interop on this computer.

Describes how to adjust the marshaling behavior of types in an interop assembly and how to define COM types manually.

A registered primary interop assembly is clearly marked under the registry key of the original type library.

The rules for type equivalence are discussed in Type Equivalence and Embedded Interop Types.

Describes the rules that the interop marshaling service uses to marshal data.

For details on importing a type library, see Generating Primary Interop Assemblies.

A COM interop wrapper is created for each ActiveX control; property, method, and events are mapped to their equivalents.

Describes how COM interop selects runtime versions and resolves managed types.

Visual Studio 2005 does not support interop debugging of device applications as such.

Solution 2: Attach to the process in InterOp mode. In this case, you don't have to attach to the process after CLR code is invoked.

Provide needed flexibility to support common COM interop scenarios.

Finally, this paper described the generation process of Primary Interop Assembly (PIA).

When your application requires such insulation, generate your own interop assembly instead of using the primary interop assembly.

An interop assembly contains metadata that describes existing COM types.

NET client assembly, one or more interop assemblies representing distinct COM type libraries, and one or more registered COM components.

Produces a primary interop assembly for the specified type library.

A single primary interop assembly can wrap more than one version of the same type library.

Outlook queries the add-in to find objects that implement the Microsoft. Office. Interop. Outlook. FormRegionStartup interface.

This section is for developers who program with primary interop assemblies.

Using design-time-only interop assemblies: Beginning with the .

For COM interop in particular, this provides powerful advantages.

For instructions on customizing MSIL, see Editing An Interop Assembly.

The wrapper marshals data according to the rules established by the interop marshaling service.

As a general guideline, use the VendorName. LibraryName combination to identify a primary interop assembly.

When the page opens, search for interop to move quickly to the Item Interoperation section.

From this assembly, the interop marshaling service generates wrappers that perform data marshaling between managed and unmanaged memory.

Likewise, the Type Library Importer (Tlbimp. Exe) also uses the registry to locate primary interop assemblies.

CompanyA. snk and specifies that this assembly is a primary interop assembly supporting type library versions 4. 2 and 5. 2.

The second line of the interop log file represents the managed signature.

The interop marshaler performs the identical transformation when exposing a VARIANT type to managed code.

Use this wrapper tool when you want to generate an interop assembly for the COM component.

The first link provides information about the classes and interfaces in the primary interop assembly for Excel.

You can register a single primary interop assembly that supports multiple type libraries.

Regasm. Exe adds an entry for the primary interop assembly under the same registry key as the original type library.

Provides steps for installing the required Office 2003 primary interop assemblies on end user computers.

Device projects support only certain scenarios for COM interop.

You can eliminate the need to deploy unnecessary types by creating an interop assembly from managed source code.

Provides examples to generate an interop assembly from a type library.

Best-fit mapping enables the interop marshaler to provide a close-matching character when no exact match exists.

You usually generate a primary interop assembly by importing a type library.

When native code calls managed code using COM Interop and the managed code throws an exception.

You should generally use strongly bound objects and primary interop assemblies whenever possible.

If COM interop is not used, then the thread is not initialized.

If a primary interop assembly is available, Visual Studio uses the existing assembly before generating a new interop assembly.

Provides links to information on setup, project templates, Office primary interop assemblies, and what is new in Office development.

In this section, you'll focus on two projects: the ClassicTalkConnectorClient and the com. example. classictalk. interop. managers projects.

Visual Studio Tools for Office uses different sets of the primary interop assemblies on the development computer.

Assemblies using registration-free COM interop are exempt from this requirement.

The COM interop layer in the common language runtime supplies the constructor for ComImport classes.

Describes how COM interop can activate components without using the Windows registry.

Figure 10 illustrates configuring the interop server with interop settings.

Formatted types can also be passed to COM interop method calls.

COM interop assemblies allow for managed applications to bind to unmanaged types at compile time.

Install Office 2003, including the primary interop assemblies.

This action generates the interop assembly.

Describes how to locate, register, and redistribute primary interop assemblies.

When working from the command line, you can use the Tlbimp utility to manually create interop assemblies.

The primary interop assembly may contain certain customizations that make the types easier to use from managed code.

Describes the steps you must take to automate Microsoft Office applications by using primary interop assemblies.

Describes how to create COM Interop assemblies in a managed device project.

It describes only the types in the primary interop assembly for Excel 2003.

Add a reference in your Office project to the primary interop assembly.

For developers, this section describes how to program with primary interop assemblies.

For information about COM Interop, see Introduction to COM Interop.

COM interop method calls can flow in either direction.

Also describes how to set a registry key to perform interop logging.

The count of calls from managed code to native code using the COM interop IDispatch method.

And, naturally, we also have a good number of Windows systems (we are an interop lab, after all).

The best way to contact publishers is to go to a technical conference (Usenix, Interop, etc. ) and go to their booths and talk to them.

Never use unsafe code unless when using interop.

Apply interop attributes to the text file.

For instructions, see How to: Generate Interop Assemblies from Type Libraries.

Generate the initial interop assembly using Tlbimp. Exe.

By using the. NET Framework to create COM components, you can use registration-free COM interop.

Describes the process of calling COM types through COM interop.

The second step enabling COM interop is to add the correct attribute to our component's AssemblyInfo. Vb file.

To work with unmanaged COM objects using managed code in Visual Studio, you must use an interop assembly.

Describes how to safely share components through COM interop services.

Create a plug-in project named com. example. classictalk. interop. managers (Figure 10).

When using COM interop, you must first create and then initialize objects.

Furthermore, it would pose COM interop problems because the "2" interfaces in EnvDTE80 derive from the EnvDTE interfaces.

COM Interop for devices is based on the desktop implementation.

Synchronization blocks are not limited to storing synchronization information; they can also store COM interop metadata.

The following VBScript code example shows how to delete a subscription using COM interop.

Describes how to deploy an interop application.

Describes how to raise and handle events using COM interop.

This topic describes how to edit an interop assembly.

Repeat steps 1-3 to import the LTPA-Interop-PolicySet. zip file provided with this article.

This attribute is used later to correctly handle the unmanaged type when it is imported during interop.

How to: Register a Component for COM Interop.

The reference in the Visual Basic application points to the interop assembly, not the actual COM object.

For example, you can also edit an interop assembly to enhance its ease of use.

Describes COM Interop in the context of Visual Basic applications.

Attribute when using Interop services to call into unmanaged code; in this case, the method must also be declared as

For example, you can indicate that a primary interop assembly supports type library versions 1. 0 And 1. 1.

Interop assemblies created by Visual Basic 2005 handle many of the details of working with COM objects, such as interoperability marshaling.

Cannot add a reference to the primary interop assembly (PIA) for the Office application

Walkthrough: Supporting COM Interop by Displaying Each Windows Form on Its Own Thread

Method. However, in the Visual Studio Tools for Office case, COM interop converts all rejected calls to a

Choose a unique name that will distinguish YOUR Interop DLL from others that may be found

For a list of Office 2003 primary interop assemblies and corresponding component names, see

Walkthrough: Supporting COM Interop by Displaying Windows Forms on a Shared Thread

Automating Microsoft Office Applications by Using Primary Interop Assemblies

For more information about installing Office primary interop assemblies, see

Attributes for Importing Type Libraries into Interop Assemblies

For information on using delegates in an interop scenario, see

Additional Types in Primary Interop Assemblies

Walkthrough: Hello World: A COM Interop Example for Smart Devices

To add a reference to a primary interop assembly

How to: Support COM Interop by Displaying Each Windows Form on Its Own Thread

Background: COM Interop on the Common Language Runtime

Name and location of the target interop assembly

Below are handy links to articles on PIAs, . NET security, . NET and COM interop, and so forth, that you could go to for more information

Interop applications are best deployed as

You can generate a primary interop assembly from a type library in the following ways

To generate an interop assembly from a type library

For guidelines and procedures on how to produce or use primary interop assemblies, see

For more information on primary interop assemblies, see

COM Interop Sample: . NET Client and COM Server

Platform invoke and COM interop call flow

How to: Support COM Interop by Displaying Windows Forms on a Shared Thread

How to: Register the Core Notification Services Assembly for COM Interop

How to: Automate Office Applications By Using Primary Interop Assemblies

How to: Generate Interop Assemblies from Type Libraries

Features for COM interop COM

Use of COM Objects Through Interop Assemblies

How to: Support COM Interop by Displaying a Windows Form with the ShowDialog Method

How to: Use COM Interop to Check Spelling Using Word