fix bug - popup windows show hiding logic

CursorLang.Core/Threading/MessageLoop.cs

@@ -38,38 +38,10 @@ public static class MessageLoop
     /// <summary>Asks the loop on this thread to finish.</summary>
     public static void Quit(int exitCode = 0) => PostQuitMessage(exitCode);
 
-    /// <summary>
-    /// Runs everything already waiting in the queue and returns.
-    /// </summary>
-    /// <remarks>
-    /// For the tests and for the rare place that has to let a posted message through
-    /// without giving up control for good.
-    /// </remarks>
-    public static void DrainQueue()
-    {
-        while (PeekMessage(out Message message, IntPtr.Zero, 0, 0, PM_REMOVE))
-        {
-            if (message.message == WM_QUIT)
-            {
-                PostQuitMessage((int)message.wParam);
-                return;
-            }
-
-            TranslateMessage(ref message);
-            DispatchMessage(ref message);
-        }
-    }
-
-    private const uint WM_QUIT = 0x0012;
-    private const uint PM_REMOVE = 0x0001;
 
     [DllImport("user32.dll", CharSet = CharSet.Unicode, EntryPoint = "GetMessageW")]
     private static extern int GetMessage(out Message lpMsg, IntPtr hWnd, uint filterMin, uint filterMax);
 
-    [DllImport("user32.dll", CharSet = CharSet.Unicode, EntryPoint = "PeekMessageW")]
-    private static extern bool PeekMessage(
-        out Message lpMsg, IntPtr hWnd, uint filterMin, uint filterMax, uint removeMsg);
-
     [DllImport("user32.dll")]
     private static extern bool TranslateMessage(ref Message lpMsg);