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Alias Clause (Visual Basic)

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Indicates that an external procedure has another name in its DLL.

Remarks

The Alias keyword can be used in this context:

Declare Statement

In the following example, the Alias keyword is used to provide the name of the function in advapi32.dll, GetUserNameA, that getUserName is used in place of in this example. Function getUserName is called in sub getUser, which displays the name of the current user.

Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (
    ByVal lpBuffer As String, ByRef nSize As Integer) As Integer
Sub GetUser()
    Dim buffer As String = New String(CChar(" "), 25)
    Dim retVal As Integer = GetUserName(buffer, 25)
    Dim userName As String = Strings.Left(buffer, InStr(buffer, Chr(0)) - 1)
    MsgBox(userName)
End Sub

See also