GetForegroundWindow throws Win32Exception Access Denied

Question

public partial class Form1 : Form
{
    [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
    private static extern IntPtr GetForegroundWindow();

    public Form1()
    {
        InitializeComponent();
        var proc = Process.GetProcesses().Single(x => x.Handle == GetForegroundWindow());
    }
}

I've tried running the app as Administrator, no go. What am I doing wrong here that I get this exception?

Enumerating processes is never a good idea. Use GetWindowThreadProcessId() instead. — Hans Passant, Nov 17 '12 at 16:27

score 1 · Accepted Answer · answered Nov 17 '12 at 14:28

1

Turns out that the whole loop I was doing was also going over protected processes which resulted in access denied

answered Nov 17 '12 at 14:28

Perry

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GetForegroundWindow throws Win32Exception Access Denied

1 Answers1