Stop-FlashingEQTaskbarButtons.ps1

#Forces EQ taskbar buttons to flash continuously and then stops them.  If the button has finished flashing, it'll will glow orange continuously and cannot be stopped. 
#https://learn-powershell.net/2013/08/26/make-a-window-flash-in-taskbar-using-powershell-and-pinvoke/
Add-Type -TypeDefinition @"
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

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

    //Stop flashing. The system restores the window to its original state. 
    const UInt32 FLASHW_STOP = 0;
    //Flash the window caption. 
    const UInt32 FLASHW_CAPTION = 1;
    //Flash the taskbar button. 
    const UInt32 FLASHW_TRAY = 2;
    //Flash both the window caption and taskbar button.
    //This is equivalent to setting the FLASHW_CAPTION | FLASHW_TRAY flags. 
    const UInt32 FLASHW_ALL = 3;
    //Flash continuously, until the FLASHW_STOP flag is set. 
    const UInt32 FLASHW_TIMER = 4;
    //Flash continuously until the window comes to the foreground. 
    const UInt32 FLASHW_TIMERNOFG = 12; 


    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool FlashWindowEx(ref FLASHWINFO pwfi);

    public static bool FlashWindow(IntPtr handle, UInt32 timeout, UInt32 count)
    {
        IntPtr hWnd = handle;
        FLASHWINFO fInfo = new FLASHWINFO();

        fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
        fInfo.hwnd = hWnd;
        fInfo.dwFlags = FLASHW_ALL | FLASHW_TIMERNOFG;
        fInfo.uCount = count;
        fInfo.dwTimeout = timeout;

        return FlashWindowEx(ref fInfo);
    }
}
"@

#https://www.displayfusion.com/ScriptedFunctions/View/?ID=42d44f29-df41-4c4e-872b-fa5181551cf2
Add-Type -TypeDefinition @"
using System;
using System.Drawing;
using System.Runtime.InteropServices;

// The 'windowHandle' parameter will contain the window handle for the:
// - Active window when run by hotkey
// - Window Location target when run by a Window Location rule
// - TitleBar Button owner when run by a TitleBar Button
// - Jump List owner when run from a Taskbar Jump List
// - Currently focused window if none of these match
public static class DisplayFusionFunction
{
	public static void Run(IntPtr windowHandle)
	{
		ScriptHelper.EnumWindows(EnumWindowsCallback);
	}

	public static bool EnumWindowsCallback(IntPtr windowHandle, IntPtr lParam)
	{
		ScriptHelper.DisableWindowFlash(windowHandle);
		return true;
	}
}

public static class ScriptHelper
{
	public delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);

	[DllImport("user32.dll")]
	[return: MarshalAs(UnmanagedType.Bool)]
	private static extern bool EnumWindows(EnumWindowsProc enumProc, IntPtr lParam);

	[DllImport("user32.dll")]
	[return: MarshalAs(UnmanagedType.Bool)]
	private static extern bool FlashWindowEx(ref FLASHWINFO pwfi);

	//Stop flashing. The system restores the window to its original state. 
	public const UInt32 FLASHW_STOP = 0; 

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

	public static bool EnumWindows(EnumWindowsProc enumProc)
	{
		return EnumWindows(enumProc, IntPtr.Zero);
	}

	public static bool DisableWindowFlash(IntPtr windowHandle)
	{
		FLASHWINFO fInfo = new FLASHWINFO();
		fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
		fInfo.hwnd = windowHandle;
		fInfo.dwFlags = FLASHW_STOP;
		fInfo.uCount = 0;
		fInfo.dwTimeout = 0;
		return FlashWindowEx(ref fInfo);
	}
}
"@


$handles = (Get-Process -Name eqgame)| Select-Object -ExpandProperty MainWindowHandle
foreach ($handle in $handles) #Flash all EQ Windows
{
    [window]::FlashWindow($handle,150,0)
}
foreach ($handle in $handles) #Stop all flashing EQ Windows
{
    #[DisplayFusionFunction]::Run($handle) #This seems to hang
    [ScriptHelper]::DisableWindowFlash($handle)
}


#Other links
#https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-flashwinfo?redirectedfrom=MSDN
#https://stackoverflow.com/questions/21987/flashwindowex-flashw-stop-still-keeps-taskbar-colored