barcode vb.net code PS (23) > $word = new-object -com word.application in C#.NET

Creating Code39 in C#.NET PS (23) > $word = new-object -com word.application

PS (23) > $word = new-object -com word.application
Code 3 Of 9 Printer In Visual C#.NET
Using Barcode creation for .NET Control to generate, create Code 39 Extended image in VS .NET applications.
www.OnBarcode.com
Decode ANSI/AIM Code 39 In C#
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Now try it again but with the -strict parameter.
Barcode Encoder In C#.NET
Using Barcode creation for .NET framework Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
Create PDF417 In Visual C#
Using Barcode encoder for .NET framework Control to generate, create PDF 417 image in .NET framework applications.
www.OnBarcode.com
PS (24) > $word = new-object -com word.application -strict New-Object : The object written to the pipeline is an insta nce of the type "Microsoft.Office.Interop.Word.ApplicationC lass" from the component's primary interop assembly. If thi s type exposes different members than the IDispatch members , scripts written to work with this object might not work i f the primary interop assembly is not installed. At line:1 char:19 + $word = new-object <<<< -com word.application strict
USS-128 Generation In Visual C#
Using Barcode encoder for .NET Control to generate, create UCC-128 image in VS .NET applications.
www.OnBarcode.com
Barcode Encoder In C#.NET
Using Barcode drawer for VS .NET Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
We get a detailed error message explaining that the object that was loaded is a wrapped object. Note that this is a non-terminating error message, so the object was still returned. Here s how to use it in a script. We don t want the error message to appear in the output of our script, so we ll redirect it to $null. Even when we do this, the $ variable, which indicates whether the last command executed was successful, is still set to $false so we know that an error occurred.
Painting Quick Response Code In Visual C#
Using Barcode creation for Visual Studio .NET Control to generate, create Denso QR Bar Code image in Visual Studio .NET applications.
www.OnBarcode.com
Draw Code11 In C#.NET
Using Barcode drawer for .NET framework Control to generate, create USD - 8 image in VS .NET applications.
www.OnBarcode.com
PS (26) > $word = new-object -com word.application ` >> -strict 2> $null >> PS (27) > $ False
ANSI/AIM Code 39 Generator In Java
Using Barcode creation for Java Control to generate, create Code 39 image in Java applications.
www.OnBarcode.com
Code-39 Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
A script should check this variable and take alternate action for the wrapped and nonwrapped cases. Now let s take a look at what was returned by New-Object.
Barcode Maker In VB.NET
Using Barcode maker for .NET framework Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
Scanning Code 128C In Visual Basic .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
PS (28) > $word.gettype().fullname Microsoft.Office.Interop.Word.ApplicationClass
EAN 13 Decoder In Visual C#
Using Barcode scanner for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
PDF-417 2d Barcode Encoder In None
Using Barcode maker for Software Control to generate, create PDF 417 image in Software applications.
www.OnBarcode.com
We can see that s an instance of the interop assembly as we discussed earlier. Now let s take a look at an object for which there is no interop assembly.
Recognizing USS Code 39 In VB.NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Paint QR In Java
Using Barcode generator for Java Control to generate, create QR Code ISO/IEC18004 image in Java applications.
www.OnBarcode.com
WINDOWS OBJECTS: COM AND WMI
Code 128C Generator In .NET
Using Barcode maker for Reporting Service Control to generate, create ANSI/AIM Code 128 image in Reporting Service applications.
www.OnBarcode.com
Generating GTIN - 12 In Objective-C
Using Barcode creator for iPad Control to generate, create UPC-A image in iPad applications.
www.OnBarcode.com
PS (43) > $shell = new-object -com Shell.Application PS (44) > $shell | gm TypeName: System.__ComObject#{efd84b2d-4bcf-4298-be25-eb 542a59fbda} Name ---AddToRecent BrowseForFolder : MemberType ---------Method Method Definition ---------void AddToRecent (Varian... Folder BrowseForFolder (...
Generating Denso QR Bar Code In Java
Using Barcode generation for BIRT Control to generate, create QR Code ISO/IEC18004 image in BIRT applications.
www.OnBarcode.com
Barcode Maker In Objective-C
Using Barcode maker for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
In this case, we see that the type of the object is System.__ComObject followed by the GUID of the registered type library. This type library is what allows us to see the members on the object. What about an object where there is no type library Let s try it and see. We ll create an instance of the Windows installer.
PS (45) > $in = new-object -com WindowsInstaller.Installer PS (46) > $in | gm TypeName: System.__ComObject Name ---CreateObjRef Equals GetHashCode GetLifetimeService GetType InitializeLifetimeService ToString MemberType ---------Method Method Method Method Method Method Method Definition ---------System.Runtime.Remo... System.Boolean Equa... System.Int32 GetHas... System.Object GetLi... System.Type GetType() System.Object Initi... System.String ToStr...
The results here are pretty disappointing. We see that the type is just plain System.__ComObject with little in the way of useful methods and properties on it. So is that it Can t we do anything with this object Well there are a couple things we can do, but they re not easy. The first thing we can do is to use a tool such as tlbimp.exe to generate a runtimecallable wrapper (RCW) for the COM class. With this RCW wrapper, we can use the class like any other .NET type, but it means that we have to run the tool and then load an assembly before we can use these objects. Let s look at a more technical but also more portable mechanism.
WORKING WITH COM IN POWERSHELL
Using the PowerShell type system to wrap COM objects The other solution is to use .NET reflection directly to build our own wrapper library. This is an advanced topic and requires a pretty good understanding of System.Reflection to accomplish. We ll create a types extension file called ComWrappers.ps1xml. The following fragment from that file shows how the InvokeMethod extension method is defined.
<ScriptMethod> <Name>InvokeMethod</Name> <Script> $name, $methodargs=$args [System.__ComObject].invokeMember($name, [System.Reflection.BindingFlags]::InvokeMethod, $null, $this, @($methodargs)) </Script> </ScriptMethod>
This script method uses the InvokeMember method on the type object to invoke a dynamically discovered method. There are similar implementations for getting and setting properties as well. We ll load ComWrappers.ps1xml and then examine the WindowsInstaller object again.
PS (1) > Update-TypeData ./ComWrappers.ps1xml PS (2) > $in = new-object -com WindowsInstaller.Installer PS (3) > $in | gm TypeName: System.__ComObject Name ---CreateObjRef Equals GetHashCode GetLifetimeService GetType InitializeLifetimeService ToString GetProperty InvokeMethod InvokeParamProperty SetProperty MemberType ---------Method Method Method Method Method Method Method ScriptMethod ScriptMethod ScriptMethod ScriptMethod Definition ---------System.Runtime.Re... System.Boolean Eq... System.Int32 GetH... System.Object Get... System.Type GetTy... System.Object Ini... System.String ToS... System.Object Get... System.Object Inv... System.Object Inv... System.Object Set...
We can see the methods we added at the end of the list. Now let s look at how we can use these methods. We ll use the WindowsIntaller class to look at an MSI file we ll call myapplication.msi . The code to do this is shown in listing 12.10.
Copyright © OnBarcode.com . All rights reserved.