pinvoke.net: Edit: kernel32.CheckRemoteDebuggerPresent

Summary: This function determines whether the specified process is being debugged.

!!!!C# Signature:
 [DllImport("Kernel32.dll", SetLastError = true, ExactSpelling = true)]
 [return: MarshalAs(UnmanagedType.Bool)]
 static extern bool CheckRemoteDebuggerPresent(SafeHandle hProcess, [MarshalAs(UnmanagedType.Bool)]ref bool isDebuggerPresent);

!!!!VB Signature:

Declare Function CheckRemoteDebuggerPresent Lib "kernel32.dll"
 (ByVal hProcess As Long, ByVal fResult As Boolean) As Boolean

!!!!Return Value:
If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError.

!!!!Notes:
Checks for RemoteDebugger on the 'hProcess'. The "remote" in CheckRemoteDebuggerPresent does not imply that the debugger necessarily resides on a different computer; instead, it indicates that the debugger resides in a separate and parallel process. Use the IsDebuggerPresent  function to detect whether the calling process is running under the debugger.
You may need to have the SE_DEBUG_NAME privilege on the specified process or you will receive ERROR_ACCESS_DENIED (0x5)

!!!!See Also:
	*IsDebuggerPresent
	*DebugActiveProcess
	*ContinueDebugEvent
	*DebugBreak
	*WaitForDebugEvent

!!!!Sample Code:

'For VB.NET
 Public Class Form1
	Declare Function CheckRemoteDebuggerPresent Lib "kernel32.dll" _  
	(ByVal hProcess As Long, ByVal fResult As Boolean) As Boolean
		Dim bool As Boolean
		Dim proc As Process = Process.GetCurrentProcess()

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    		Debug.Print(CStr(CheckRemoteDebuggerPresent(proc.Handle, bool)))
	End Sub
 End Class

Documentation: CheckRemoteDebuggerPresent@msdn on MSDN