Reworked the behavior of the shutdown status message, and the virtual machine and manager window messages are now paused in case of a message box issued by a command from the manager.

src/win/win.c

@@ -8,7 +8,7 @@
  *
  *		Platform main support module for Windows.
  *
- * Version:	@(#)win.c	1.0.58	2019/10/19
+ * Version:	@(#)win.c	1.0.59	2019/11/02
  *
  * Authors:	Sarah Walker, <http://pcem-emulator.co.uk/>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -197,11 +197,6 @@ set_language(int id)
 
 	/* Load the strings table for this ID. */
 	LoadCommonStrings();
-
-#if 0
-	/* Update the menus for this ID. */
-	MenuUpdate();
-#endif
     }
 }
 
@@ -344,6 +339,14 @@ ProcessCommandLine(wchar_t ***argw)
 }
 
 
+static void
+shutdown_notify(void)
+{
+    if (source_hwnd)
+	PostMessage((HWND) (uintptr_t) source_hwnd, WM_SENDSDSTATUS, (WPARAM) 1, (LPARAM) hwndMain);
+}
+
+
 /* For the Windows platform, this is the start of the application. */
 int WINAPI
 WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpszArg, int nCmdShow)
@@ -381,6 +384,10 @@ WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpszArg, int nCmdShow)
     if (! pc_init(argc, argw)) {
 	/* Detach from console. */
 	CreateConsole(0);
+
+	if (source_hwnd)
+		PostMessage((HWND) (uintptr_t) source_hwnd, WM_SENDSDSTATUS, (WPARAM) 1, (LPARAM) hwndMain);
+
 	return(1);
     }
 
@@ -391,6 +398,8 @@ WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpszArg, int nCmdShow)
     /* Handle our GUI. */
     i = ui_init(nCmdShow);
 
+    atexit(shutdown_notify);
+
     return(i);
 }
 
@@ -428,6 +437,8 @@ do_stop(void)
 
     plat_delay_ms(100);
 
+    shutdown_notify();
+
     pc_close(thMain);
 
     thMain = NULL;
@@ -627,7 +638,6 @@ plat_dir_check(wchar_t *path)
 int
 plat_dir_create(wchar_t *path)
 {
-    // return((int)CreateDirectory(path, NULL));
     return((int)SHCreateDirectory(hwndMain, path));
 }
 
@@ -696,10 +706,6 @@ plat_vidapi_name(int api)
 		break;
 
 	case 2:
-#if 0
-		/* Direct3D is default. */
-		name = "d3d";
-#endif
 		break;
 
 	case 3:
@@ -707,10 +713,6 @@ plat_vidapi_name(int api)
 		break;
 #else
 	case 1:
-#if 0
-		/* Direct3D is default. */
-		name = "d3d";
-#endif
 		break;
 
 	case 2: