# Restore the deployment window state:
#   1. the RENDERER (GL bridge, main out-the-window view) -> always-on-top
#      (WS_EX_TOPMOST), so the game view is never covered.
#   2. DOSBox-X -> parked at 10,10 with FOREGROUND FOCUS, so its emulation
#      thread keeps foreground priority (else the RIO ACK deadline is missed
#      and the board storms -- the RIO focus-sensitivity issue).
# A topmost renderer stays visually above the focused-but-non-topmost DOSBox,
# yet DOSBox remains the active window (priority boost). Run anytime the stack
# gets disturbed (a capture, a click, new windows):  .\focus_dosbox.ps1
param([int]$X = 10, [int]$Y = 10)
Add-Type @'
using System;
using System.Text;
using System.Runtime.InteropServices;
public class DBFocus {
  delegate bool EP(IntPtr h, IntPtr l);
  [DllImport("user32.dll")] static extern bool EnumWindows(EP cb, IntPtr l);
  [DllImport("user32.dll")] static extern int GetWindowTextA(IntPtr h, byte[] b, int m);
  [DllImport("user32.dll")] static extern bool IsWindowVisible(IntPtr h);
  [DllImport("user32.dll")] static extern bool SetWindowPos(IntPtr h, IntPtr a, int x,int y,int w,int hh, uint f);
  [DllImport("user32.dll")] static extern bool SetForegroundWindow(IntPtr h);
  [DllImport("user32.dll")] static extern bool BringWindowToTop(IntPtr h);
  [DllImport("user32.dll")] static extern bool ShowWindow(IntPtr h, int c);
  [DllImport("user32.dll")] static extern IntPtr GetForegroundWindow();
  [DllImport("user32.dll")] static extern uint GetWindowThreadProcessId(IntPtr h, out uint p);
  [DllImport("user32.dll")] static extern bool AttachThreadInput(uint a, uint b, bool f);
  [DllImport("kernel32.dll")] static extern uint GetCurrentThreadId();
  static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
  static IntPtr Find(string needle) {
    IntPtr found=IntPtr.Zero;
    EnumWindows((h,l)=>{ if(!IsWindowVisible(h)) return true;
      byte[] b=new byte[256]; int n=GetWindowTextA(h,b,256);
      if(n>0 && Encoding.ASCII.GetString(b,0,n).Contains(needle)){ found=h; return false; }
      return true; }, IntPtr.Zero);
    return found; }
  static IntPtr FindRenderer() {
    IntPtr h=Find("dpl3-revive renderer"); if(h!=IntPtr.Zero) return h;
    return Find("VelociRender"); }
  public static string Apply(int x, int y) {
    string s="";
    // 1) renderer -> topmost (keeps game view above everything)
    IntPtr r=FindRenderer();
    if(r!=IntPtr.Zero){ SetWindowPos(r, HWND_TOPMOST, 0,0,0,0, 0x0001|0x0002); s+="renderer topmost; "; }
    else s+="renderer NOT found; ";
    // 2) DOSBox -> 10,10 + foreground focus (RIO priority)
    IntPtr d=Find("DOSBox-X");
    if(d==IntPtr.Zero) return s+"DOSBox NOT found";
    SetWindowPos(d, IntPtr.Zero, x,y, 0,0, 0x0001|0x0004);  // NOSIZE|NOZORDER
    ShowWindow(d, 9);  // SW_RESTORE
    uint pid; uint fg=GetWindowThreadProcessId(GetForegroundWindow(), out pid);
    uint me=GetCurrentThreadId();
    AttachThreadInput(me, fg, true);
    BringWindowToTop(d); SetForegroundWindow(d);
    AttachThreadInput(me, fg, false);
    return s+"DOSBox at "+x+","+y+" focused="+(GetForegroundWindow()==d);
  }
}
'@
[DBFocus]::Apply($X, $Y)