Taskbar notification glow

Question

I have a TCP Chat application. When a new message arrives, I want to make the taskbar glow until the user opens the form again (in case it wasn't focus/activated).

An example of what I mean: http://puu.sh/4z01n.png

How can I make it glow like that?

Thanks!

If you still don't understand what I mean.. The image I provided is what appears ON the icon i nthe taskbar when something "glows". Meaning there is a notifcation. That's what I want to acheive.

Answer 1

I hope this will help you

[DllImport("User32.dll")]
[return:MarshalAs(UnmanagedType.Bool)]
static extern bool FlashWindowEx(ref FLASHINFO pwfi);


    [StructLayout(LayoutKind.Sequential)]
    public struct FLASHWINFO {
        public UInt32 cbSize;
        public IntPtr hwnd;
        public UInt32 dwFlags;
        public UInt32 uCount;
        public UInt32 dwTimeout;
    }


[Flags]
        public enum FlashMode {
            /// 
            /// Stop flashing. The system restores the window to its original state.
            /// 
            FLASHW_STOP = 0,
            /// 
            /// Flash the window caption.
            /// 
            FLASHW_CAPTION = 1,
            /// 
            /// Flash the taskbar button.
            /// 
            FLASHW_TRAY = 2,
            /// 
            /// Flash both the window caption and taskbar button.
            /// This is equivalent to setting the FLASHW_CAPTION | FLASHW_TRAY flags.
            /// 
            FLASHW_ALL = 3,
            /// 
            /// Flash continuously, until the FLASHW_STOP flag is set.
            /// 
            FLASHW_TIMER = 4,
            /// 
            /// Flash continuously until the window comes to the foreground.
            /// 
            FLASHW_TIMERNOFG = 12
        }

        public static bool FlashWindow(IntPtr hWnd, FlashMode fm) {
            FLASHWINFO fInfo = new FLASHWINFO();

            fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
            fInfo.hwnd = hWnd;
            fInfo.dwFlags = (UInt32)fm;
            fInfo.uCount = UInt32.MaxValue;
            fInfo.dwTimeout = 0;

            return FlashWindowEx(ref fInfo);
        }

Taken from my wiki at Flashing Taskbar