ProcessStartInfo Class
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ProcessStartInfo Class

 

Specifies a set of values that are used when you start a process.

Namespace:   System.Diagnostics
Assembly:  System (in System.dll)

System.Object
  System.Diagnostics.ProcessStartInfo

[TypeConverterAttribute(typeof(ExpandableObjectConverter))]
[PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")]
[HostProtectionAttribute(SecurityAction.LinkDemand, SharedState = true, 
	SelfAffectingProcessMgmt = true)]
public sealed class ProcessStartInfo

NameDescription
System_CAPS_pubmethodProcessStartInfo()

Initializes a new instance of the ProcessStartInfo class without specifying a file name with which to start the process.

System_CAPS_pubmethodProcessStartInfo(String)

Initializes a new instance of the ProcessStartInfo class and specifies a file name such as an application or document with which to start the process.

System_CAPS_pubmethodProcessStartInfo(String, String)

Initializes a new instance of the ProcessStartInfo class, specifies an application file name with which to start the process, and specifies a set of command-line arguments to pass to the application.

NameDescription
System_CAPS_pubpropertyArguments

Gets or sets the set of command-line arguments to use when starting the application.

System_CAPS_pubpropertyCreateNoWindow

Gets or sets a value indicating whether to start the process in a new window.

System_CAPS_pubpropertyDomain

Gets or sets a value that identifies the domain to use when starting the process.

System_CAPS_pubpropertyEnvironment

Gets the environment variables that apply to this process and its child processes.

System_CAPS_pubpropertyEnvironmentVariables

Gets search paths for files, directories for temporary files, application-specific options, and other similar information.

System_CAPS_pubpropertyErrorDialog

Gets or sets a value indicating whether an error dialog box is displayed to the user if the process cannot be started.

System_CAPS_pubpropertyErrorDialogParentHandle

Gets or sets the window handle to use when an error dialog box is shown for a process that cannot be started.

System_CAPS_pubpropertyFileName

Gets or sets the application or document to start.

System_CAPS_pubpropertyLoadUserProfile

Gets or sets a value that indicates whether the Windows user profile is to be loaded from the registry.

System_CAPS_pubpropertyPassword

Gets or sets a secure string that contains the user password to use when starting the process.

System_CAPS_pubpropertyPasswordInClearText

Gets or sets the user password in clear text to use when starting the process.

System_CAPS_pubpropertyRedirectStandardError

Gets or sets a value that indicates whether the error output of an application is written to the Process.StandardError stream.

System_CAPS_pubpropertyRedirectStandardInput

Gets or sets a value indicating whether the input for an application is read from the Process.StandardInput stream.

System_CAPS_pubpropertyRedirectStandardOutput

Gets or sets a value that indicates whether the textual output of an application is written to the Process.StandardOutput stream.

System_CAPS_pubpropertyStandardErrorEncoding

Gets or sets the preferred encoding for error output.

System_CAPS_pubpropertyStandardOutputEncoding

Gets or sets the preferred encoding for standard output.

System_CAPS_pubpropertyUserName

Gets or sets the user name to be used when starting the process.

System_CAPS_pubpropertyUseShellExecute

Gets or sets a value indicating whether to use the operating system shell to start the process.

System_CAPS_pubpropertyVerb

Gets or sets the verb to use when opening the application or document specified by the FileName property.

System_CAPS_pubpropertyVerbs

Gets the set of verbs associated with the type of file specified by the FileName property.

System_CAPS_pubpropertyWindowStyle

Gets or sets the window state to use when the process is started.

System_CAPS_pubpropertyWorkingDirectory

When the UseShellExecute property is false, gets or sets the working directory for the process to be started. When UseShellExecute is true, gets or sets the directory that contains the process to be started.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

ProcessStartInfo is used together with the Process component. When you start a process using the Process class, you have access to process information in addition to that available when attaching to a running process.

You can use the ProcessStartInfo class for better control over the process you start. You must at least set the FileName property, either manually or using the constructor. The file name is any application or document. Here a document is defined to be any file type that has an open or default action associated with it. You can view registered file types and their associated applications for your computer by using the Folder Options dialog box, which is available through the operating system. The Advanced button leads to a dialog box that shows whether there is an open action associated with a specific registered file type.

In addition, you can set other properties that define actions to take with that file. You can specify a value specific to the type of the FileName property for the Verb property. For example, you can specify "print" for a document type. Additionally, you can specify Arguments property values to be command-line arguments to pass to the file's open procedure. For example, if you specify a text editor application in the FileName property, you can use the Arguments property to specify a text file to be opened by the editor.

Standard input is usually the keyboard, and standard output and standard error are usually the monitor screen. However, you can use the RedirectStandardInput, RedirectStandardOutput, and RedirectStandardError properties to cause the process to get input from or return output to a file or other device. If you use the StandardInput, StandardOutput, or StandardError properties on the Process component, you must first set the corresponding value on the ProcessStartInfo property. Otherwise, the system throws an exception when you read or write to the stream.

Set UseShellExecute to specify whether to start the process by using the operating system shell.

You can change the value of any ProcessStartInfo property up to the time that the process starts. After you start the process, changing these values has no effect.

System_CAPS_noteNote

This class contains a link demand at the class level that applies to all members. A SecurityException is thrown when the immediate caller does not have full-trust permission. For details about security demands, see Link Demands.

The following code example demonstrates how to use the ProcessStartInfo class to start Internet Explorer, providing the destination URLs as ProcessStartInfo arguments.

using System;
using System.Diagnostics;
using System.ComponentModel;

namespace MyProcessSample
{
    class MyProcess
    {
        // Opens the Internet Explorer application.
        void OpenApplication(string myFavoritesPath)
        {
            // Start Internet Explorer. Defaults to the home page.
            Process.Start("IExplore.exe");

            // Display the contents of the favorites folder in the browser.
            Process.Start(myFavoritesPath);
        }

        // Opens urls and .html documents using Internet Explorer.
        void OpenWithArguments()
        {
            // url's are not considered documents. They can only be opened
            // by passing them as arguments.
            Process.Start("IExplore.exe", "www.northwindtraders.com");

            // Start a Web page using a browser associated with .html and .asp files.
            Process.Start("IExplore.exe", "C:\\myPath\\myFile.htm");
            Process.Start("IExplore.exe", "C:\\myPath\\myFile.asp");
        }

        // Uses the ProcessStartInfo class to start new processes,
        // both in a minimized mode.
        void OpenWithStartInfo()
        {
            ProcessStartInfo startInfo = new ProcessStartInfo("IExplore.exe");
            startInfo.WindowStyle = ProcessWindowStyle.Minimized;

            Process.Start(startInfo);

            startInfo.Arguments = "www.northwindtraders.com";

            Process.Start(startInfo);
        }

        static void Main()
        {
            // Get the path that stores favorite links.
            string myFavoritesPath =
                Environment.GetFolderPath(Environment.SpecialFolder.Favorites);

            MyProcess myProcess = new MyProcess();

            myProcess.OpenApplication(myFavoritesPath);
            myProcess.OpenWithArguments();
            myProcess.OpenWithStartInfo();
        }
    }
}

SecurityPermission

for calling members of ProcessStartInfo. Demand value: LinkDemand; NIB: Named Permission Sets: FullTrust.

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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