Added option SW_FORCEMINIMIZE to ShowWindow.

dlls/x11drv/winpos.c

@@ -1178,6 +1178,7 @@ BOOL X11DRV_ShowWindow( HWND hwnd, INT cmd )
             swp |= SWP_NOACTIVATE | SWP_NOZORDER;
             /* fall through */
 	case SW_SHOWMINIMIZED:
+        case SW_FORCEMINIMIZE: /* FIXME: Does not work if thread is hung. */
             swp |= SWP_SHOWWINDOW;
             /* fall through */
 	case SW_MINIMIZE:

include/winuser.h

@@ -2871,7 +2871,8 @@ typedef struct tagMINIMIZEDMETRICS {
 #define SW_SHOWNA           8
 #define SW_RESTORE          9
 #define SW_SHOWDEFAULT	    10
-#define SW_MAX		    10
+#define SW_FORCEMINIMIZE    11
+#define SW_MAX              11
 #define SW_NORMALNA	    0xCC	/* undoc. flag in MinMaximize */
 
   /* WM_SIZE message wParam values */