C# Signature:

[DllImport("coredll.dll", SetLastError=true)]

public static extern short GetKeyState(VK nVirtKey);

VB Signature:

Declare Function GetKeyState Lib "coredll.dll" (ByVal nVirtKey As [VK]) As Short

User-Defined Types:

VK

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

This function is very similar to the user32 function of the same name

Tips & Tricks:

Please add some!

Sample Code:

This sample VB.net code will check whether the NumLock is on or off.

   Const VK_NUMLOCK As Integer = CInt(System.Windows.Forms.Keys.NumLock)
   Dim keystate As Short = GetKeyState(VK_NUMLOCK)
   If (keystate = 0) Then
      MsgBox("NumLock is off")
   Else
      MsgBox("NumLock is on")
   End If