C# Signature:

[DllImport("user32.dll", SetLastError = true)]
static extern uint GetDlgItemText(IntPtr hDlg, int nIDDlgItem,
   [Out] StringBuilder lpString, int nMaxCount);

VB Signature:

<DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
Private Function GetDlgItemText(
    ByVal hDlg As IntPtr, _
    ByVal nIDDlgItem As Integer, _
    ByVal lpString As StringBuilder, _
    ByVal nMaxCount As Integer) As Long
End Function

OR, using Declare statement - with "GetDlgItemTextA" for ANSI return value or "GetDlgItemTextW" for Unicode return value:

Private Declare Function GetDlgItemText Lib "user32" Alias "GetDlgItemTextA" (
    ByVal hDlg As IntPtr, _
    ByVal nIDDlgItem As Integer, _
    ByVal lpString As StringBuilder, _
    ByVal nMaxCount As Integer) As Long

User-Defined Types:

None.

Notes:

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Sample Code:

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