C# Signature:

[DllImport("user32.dll")]
static extern int ToAsciiEx(uint uVirtKey, uint uScanCode, byte [] lpKeyState,
   [Out] StringBuilder lpChar, uint uFlags, IntPtr hkl);

Vb.Net Signature:

Public Declare Function ToAsciiEx Lib "user32" (ByVal uVirtKey As UInteger, ByVal uScanCode As UInteger, ByVal lpKeyState As Byte(), <Out()> ByVal lpChar As System.Text.StringBuilder, ByVal uFlags As UInteger, ByVal hkl As IntPtr) As Integer

User-Defined Types:

None.

static extern int ToAscii(uint uVirtKey, uint uScanCode, byte [] lpKeyState,
   byte[] lpwTransKey, uint fuState);
// or
[DllImport("user32.dll")]
static extern int ToAscii(uint uVirtKey, uint uScanCode, byte [] lpKeyState,
   [Out] StringBuilder lpChar, uint uFlags);

VB Signature:

<DllImport("user32")> _
Public Function ToAscii( _
     ByVal uVirtKey As Integer, _
     ByVal uScanCode As Integer, _
     ByVal lpKeyState() As Byte, _
     ByVal lpChar As StringBuilder, _
     ByVal uFlags As Integer)
End Function

Notes:

None.

'or..
Public Declare Function ToAscii Lib "user32" (ByVal uVirtKey As Win32CONST.KeyEvent, ByVal uScanCode As Integer, ByVal lpKeyState() As Byte, ByRef lpChar As Integer, ByVal uFlags As Win32CONST.ToAsciiFlags) As Integer

Tips & Tricks:

Please add some!

Sample Code:

Please add some!

User-Defined Types:

Public Enum ToAsciiFlags As Integer
    MENU_IS_ACTIVE = 1
    MENU_IS_INACTIVE = 0
End Enum

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

  <DllImport("User32.dll")> _
  Public Shared Function ToAscii(ByVal uVirtKey As Integer, ByVal uScanCode As Integer, ByVal lpbKeyState As Byte(), ByVal lpChar As Byte(), ByVal uFlags As Integer) As Integer
  End Function

  <DllImport("User32.dll")> _
  Public Shared Function GetKeyboardState(ByVal pbKeyState As Byte()) As Integer
  End Function

  Public Shared Function GetAsciiCharacter(ByVal uVirtKey As Integer, ByVal uScanCode As Integer) As Char
    Dim lpKeyState As Byte() = New Byte(255) {}
    GetKeyboardState(lpKeyState)
    Dim lpChar As Byte() = New Byte(1) {}
    If ToAscii(uVirtKey, uScanCode, lpKeyState, lpChar, 0) = 1 Then
      Return Chr(lpChar(0))
    Else
      Return New Char()
    End If
  End Function

Alternative Managed API:

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