Question

In VB6, I used a call to the Windows API, GetAsyncKeyState, to determine if the user has hit the ESC key to allow them to exit out of a long running loop.

Declare Function GetAsyncKeyState Lib "user32" (ByVal nVirtKey As Long) As Integer 

Is there an equivalent in pure .NET that does require a direct call to the API?

Answer 1

You can find the P/Invoke declaration for GetAsyncKeyState from http://pinvoke.net/default.aspx/user32/GetAsyncKeyState.html

Here’s the C# signature for example:

[DllImport('user32.dll')] static extern short GetAsyncKeyState(int vKey);