winex11: Don't send WM_CANCELMODE to iconified windows.

dlls/user32/tests/msg.c

@@ -5572,7 +5572,7 @@ static void test_messages(void)
 
     ShowWindow(hwnd, SW_MINIMIZE);
     flush_events();
-    ok_sequence(WmShowMinOverlappedSeq, "ShowWindow(SW_SHOWMINIMIZED):overlapped", TRUE);
+    ok_sequence(WmShowMinOverlappedSeq, "ShowWindow(SW_SHOWMINIMIZED):overlapped", FALSE);
     flush_sequence();
 
     if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_MINIMIZE)

dlls/winex11.drv/event.c

@@ -837,7 +837,8 @@ static void focus_out( Display *display , HWND hwnd )
         return;
     }
     if (hwnd != NtUserGetForegroundWindow()) return;
-    send_message( hwnd, WM_CANCELMODE, 0, 0 );
+    if (!(NtUserGetWindowLongW( hwnd, GWL_STYLE ) & WS_MINIMIZE))
+        send_message( hwnd, WM_CANCELMODE, 0, 0 );
 
     /* don't reset the foreground window, if the window which is
        getting the focus is a Wine window */