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WindowsFormsApplicationBase.IsSingleInstance Property

.NET Framework 4.5

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Determines whether this application is a single-instance application.

Namespace: Microsoft.VisualBasic.ApplicationServices
Assembly: Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

Syntax

C++

Copy

protected bool IsSingleInstance { get; set; }

Property Value

Type: System.Boolean
A Boolean value that indicates whether this application is a single-instance application.

Remarks

The Run method uses this property to determine whether this application is a single-instance application.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

WindowsFormsApplicationBase Class

Microsoft.VisualBasic.ApplicationServices Namespace

Run

Other Resources

Extending the Visual Basic Application Model

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