This documentation is archived and is not being maintained.

WindowsFormsApplicationBase.OnStartupNextInstance Method

When overridden in a derived class, allows for code to run when a subsequent instance of a single-instance application starts.

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

protected virtual void OnStartupNextInstance(
	StartupNextInstanceEventArgs eventArgs


Type: Microsoft.VisualBasic.ApplicationServices.StartupNextInstanceEventArgs
StartupNextInstanceEventArgs. Contains the command-line arguments of the subsequent application instance and indicates whether the first application instance should be brought to the foreground upon exiting the exception handler.

By default, this method raises the StartupNextInstance event. The event handler can set the BringToForeground property of the event argument. If BringToForeground is True, the method activates the main form. Otherwise, the main form is left in its current state.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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