eror in get application title

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hi
this my source to get title(name) of runing applications in my listbox:

C#

[DllImport("user32.dll")]
        static extern IntPtr GetForegroundWindow();

        [DllImport("user32.dll")]
        static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);

        private string GetActiveWindowTitle()
        {
            const int nChars = 256;
            IntPtr handle = IntPtr.Zero;
            StringBuilder Buff = new StringBuilder(nChars);
            handle = GetForegroundWindow();

            if (GetWindowText(handle, Buff, nChars) > 0)
            {
               // listBoxControl1.Items.Add(Buff.ToString());
             //   Buff.Capacity.ToString();
                Buff.MaxCapacity.ToString();
              return Buff.ToString();
            }
            return null;

listBoxControl1.Items.Add(GetForegroundWindow.ToString());

but when KMPlayer is runing my list show audio file name

thanks

Posted 5-Sep-13 10:14am

amirpooya

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Sergey Alexandrovich Kryukov 5-Sep-13 22:01pm

What did you expect? Why is it wrong? What's the purpose of getting the title?
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-09-05T16:11:00

Sorry for not answering your question: I think you did not explain what's your problem. Please see my comment to the question.

First of all, let me point out just one mistake: it's pointless to call ToString() on GetForegroundWindow in your last line, as it returns IntPtr. This line should not even compile as GetForegroundWindow() is a function (and "()" brackets are missing). I don't think this line is a part of your real code.

I wanted to tell you this: all your problems are actually stem from the fact that you are trying to integrate the application (the player) which is not designed for this, so you have to opt for dirty Windows tricks. This is a dirty business where you always loose. Unfortunately, you did not share your goal, but I'm pretty sure that it could be reached with some legitimate ways. For example, you could get some available player components (not applications!) and use one of them in your application. It could be the Microsoft MediaPlayer control (for WPF or System.Windows.Forms), open-source VLC, or something like that.

—SA

Sergey Alexandrovich Kryukov · Answer 2 · 2013-09-17T10:02:00

In addition to Solution 1: information if the use of VLC in .NET:

This is the updated useful information on the VLC component binding for.NET:
http://sourceforge.net/projects/libvlcnet/[^],
https://wiki.videolan.org/C_Sharp/[^],
https://wiki.videolan.org/.Net_Interface_to_VLC/[^].

Notably, you can find material for using the component for both WPF and System.Windows.Forms.

—SA

eror in get application title

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