Move Window To Top Left Corner of Parent Container

MoveWindow.ps1

<#
  Originally coded to move the window to where the mouse cursor is; most code left
  However, due to issues this only moves the window to the top left corner of it's parent container
  That's good enough for my scenario; i.e. puts the window back on screen.
#>

Add-Type @"
    using System;
    using System.Runtime.InteropServices;

    // https://msdn.microsoft.com/en-us/library/windows/desktop/dd162805(v=vs.85).aspx
    public struct POINT 
    {
        public long x;
        public long y;
    }

    // https://msdn.microsoft.com/en-us/library/windows/desktop/dd162897(v=vs.85).aspx
    public struct RECT 
    {
        public long left;
        public long top;
        public long right;
        public long bottom;
    }

    public class User32WinApi 
    {
        
        // https://msdn.microsoft.com/en-us/library/windows/desktop/ms648390(v=vs.85).aspx   
        /*
            Gets the coordinates of the mouse cursor
            (I've not added logic for other "remote desktop" or similar support; see above link for notes on OpenInputDesktop if that's required for your scenario
        */
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool GetCursorPos(out POINT lpPoint);


        // https://msdn.microsoft.com/en-us/library/windows/desktop/ms633505(v=vs.85).aspx
        /*
            Gets the handle of the in-focus window
            NB: In some scenarios this can be NULL; so code needed to handle such an event
        */
        [DllImport("user32.dll")]
        public static extern IntPtr GetForegroundWindow();

        // https://msdn.microsoft.com/en-us/library/windows/desktop/ms633519(v=vs.85).aspx
        /*
            Gets the coordinates of the rectangle relative to the top left corner of the screen.
            NB: bottom right is 1 pixed beyond the bottom right boundary of the shape; i.e. defines the border, not the filled area.
        */
        /* no need to find the before or after positions; let's just assume it works
            [DllImport("user32.dll")]
            [return: MarshalAs(UnmanagedType.Bool)]
            public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
        */

        // https://msdn.microsoft.com/en-us/library/windows/desktop/ms633503(v=vs.85).aspx
        /*
            top & left are always 0 (i.e. since the rectangle is relative to the window itself)
            bottom & right equal the windows hieght and width, respectively.
        */
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool GetClientRect(IntPtr hWnd, out RECT lpRect);

        // https://msdn.microsoft.com/en-us/library/windows/desktop/ms633534(v=vs.85).aspx
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);

    }

"@
$repaint = $true #presumably it's best to always repaint the window after a move, just in case being offscreen blanked it in some way / something like that?
$positionOfCursor = New-Object POINT
$windowSize = New-Object RECT

"Quick; get the window in question in focus, then put your mouse in position!"
Start-Sleep -Seconds 5 #allow 5 seconds for the user to get the window they're after in focus (e.g. using ALT+TAB / whatever), and move their mouse to the required positoin
$activeWindow = [User32WinApi]::GetForegroundWindow()
if ($activeWindow) {
    if([User32WinApi]::GetCursorPos([ref]$positionOfCursor)) {
        if([User32WinApi]::GetClientRect($activeWindow, [ref]$windowSize)) {
            $Name = @((Get-Process | ?{$_.MainWindowHandle -eq $activeWindow } | select -ExpandProperty MainWindowTitle),"No Name Found for Handle $activeWindow" -ne $null)[0]
            "Moving window for $Name to Mouse Cursor Position ($($positionOfCursor.x), $($positionOfCursor.y))"
            
            #have replaced `$positionOfCursor.x, $positionOfCursor.y` with `0, 0` as having issues converting long values to ints as returned values are out of range
            #this works for my scenario; just aligns the window with its parent's top left corner
            if ([User32WinApi]::MoveWindow($activeWindow, 0, 0, $windowSize.right, $windowSize.bottom, $repaint)) {
                "Window moved successfully (hope you agree!)"
            } else {
                Write-Warning "Failed to move the window"
            }
        } else {
            Write-Warning "Failed to get size of the active window"    
        }
    } else {
        Write-Warning "Failed to get position of cursor"    
    }
} else {
    Write-Warning "No active window found"    
}