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Home/ Questions/Q 607145
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Editorial Team
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Editorial Team
Asked: May 13, 20262026-05-13T17:19:44+00:00 2026-05-13T17:19:44+00:00

How should I DLLImport things in VB.NET ? An example would be: <DllImport(user32.dll, SetLastError:=True,

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How should I DLLImport things in VB.NET? An example would be:

<DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
Private Shared Function GetWindowText(ByVal hwnd As IntPtr, ByVal lpString As StringBuilder, ByVal cch As Integer) As Integer

End Function

If I put it inside a Class or somewhere else, I get “DLLimport is not defined” I am using Visual Studio 2008 Professional

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  1. Editorial Team
    Editorial Team
    2026-05-13T17:19:45+00:00Added an answer on May 13, 2026 at 5:19 pm

    You have to add Imports System.Runtime.InteropServices to the top of your source file.

    Alternatively, you can fully qualify attribute name:

    <System.Runtime.InteropService.DllImport("user32.dll", _
        SetLastError:=True, CharSet:=CharSet.Auto)> _
    
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